阅读说明：本技术 一种基于软件声纳的多功能水声信号源 (A kind of multifunctional water acoustical signal source based on software sonar ) 是由 王彬 侯越圣 李勇斌 邱钊洋 邵高平 张连海 黄焱 马金全 姜楠 于 2019-07-31 设计创作，主要内容包括：本发明提供一种多功能水声信号发生方法、发生装置和信号源装置。该方法包括：接收信号参数信息,所述信号参数信息包括用于生成水声通信信号的参数信息和/或用于生成舰船辐射噪声的参数信息；根据不同的信号参数信息生成不同类型的水声信号。该发生装置包括：水声通信信号生成模块、舰船辐射噪声生成模块、水声信道生成模块、环境噪声生成模块以及音频信号存储和回放模块。该信号源装置包括该发生装置和设置有覆盖发生信号频率范围的功率放大器和换能器的发射装置。本发明可以生成多种类型的水声信号,对硬件设备依赖性弱,便于信号波形更新升级,且可以提供水声信道仿真功能,满足不同教学科研需要。(The present invention provides a kind of multifunctional water acoustical signal method for generation, generating device and signal source device.This method comprises: receiving signal parameter information, the signal parameter information includes the parameter information for generating water sound communication signal and/or the parameter information for generating ship-radiated noise；Different types of underwater sound signal is generated according to different signal parameter information.The generating device includes: water sound communication signal generation module, ship-radiated noise generation module, underwater acoustic channel generation module, ambient noise generation module and audio signal storage and playback module.The signal source device includes the emitter of the generating device and the power amplifier for being provided with covering generation signal frequency range and energy converter.A plurality of types of underwater sound signals can be generated in the present invention, weak to hardware device dependence, update upgrading convenient for signal waveform, and can provide underwater acoustic channel copying, meet various teaching scientific research needs.)

1. a kind of multifunctional water acoustical signal method for generation based on software sonar characterized by comprising

Receive signal parameter information, the signal parameter information include parameter information for generating water sound communication signal and/or For generating the parameter information of ship-radiated noise；

Different types of underwater sound signal is generated according to different signal parameter information.

2. the method according to claim 1, wherein further include:

The parameter information for generating underwater acoustic channel is received, is generated according to the parameter information for generating underwater acoustic channel specific Underwater acoustic channel under the conditions of sea area；

It receives audio signal and stores and playing back audio signal.

3. according to the method described in claim 2, it is characterized by further comprising:

One of audio signal according to the water sound communication signal of generation, the ship-radiated noise of generation and playback or it is a variety of and The underwater acoustic channel of generation, and and/or default ambient noise generate underwater sound signal under different channels and noise circumstance.

4. the method according to claim 1, wherein described for generating the parameter information packet of water sound communication signal It includes: the corresponding modulation parameter of signal modulation mode, signal modulation mode, channel coding method and the corresponding volume of channel coding method Code parameter, and and/or m-sequence Direct-Spread and sequence length；

It is described for generate the parameter information of ship-radiated noise to include: the current speed of a ship or plane, maximum speed, tonnage and propeller blade Number.

5. according to the method described in claim 2, it is characterized in that, the parameter information for generating underwater acoustic channel includes: Marine environment temperature, marine environment salinity, marine environment depth, underwater sound signal send depth, underwater sound signal receives depth and water Acoustic signal propagation distance.

6. according to the method described in claim 5, it is characterized in that, the marine environment temperature, marine environment salinity and ocean The acquisition methods of environment depth are as follows: obtain any sea in Argo seas and oceans database by setting visualized map interface latitude coordinates Marine environment temperature, marine environment salinity and the marine environment depth in domain.

7. a kind of multifunctional water acoustical signal generating device based on software sonar characterized by comprising

Water sound communication signal generation module, for receiving the parameter information of water sound communication signal and generating water sound communication signal；

Ship-radiated noise generation module, for receiving the parameter information of ship-radiated noise and generating ship-radiated noise；

Underwater acoustic channel generation module, for receiving the parameter information of underwater acoustic channel and generating underwater acoustic channel under the conditions of specified sea areas；

Ambient noise generation module, for generating default ambient noise；

Audio signal storage and playback module, for receiving audio signal and storing and playing back audio signal.

8. a kind of multifunctional water acoustical signal source device based on software sonar, is divided into two parts of dry end and green end, feature exists In the dry end includes multifunctional water acoustical signal generating device as claimed in claim 7 and the sound card for D/A conversion；It is described wet End includes underwater sound signal emitter, and the underwater sound signal emitter includes power amplifier and energy converter, and the power is put The working band of big device and energy converter needs to cover the frequency range that signal occurs；

The underwater sound signal that the multifunctional water acoustical signal generating device generates is exported to the input terminal of the sound card, the sound card Output end connects the input terminal of the power amplifier, and the output of the power amplifier terminates to the energy converter, passes through institute Energy converter is stated to launch the underwater sound signal.

9. a kind of electronic equipment characterized by comprising memory and processor, the processor and the memory pass through Bus completes mutual communication；The memory is stored with the program instruction that can be executed by the processor, the processor Described program instruction is called to be able to carry out the method as described in claim 1 to 6 is any.

10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program The method as described in claim 1 to 6 is any is realized when being executed by processor.

Technical field

The present invention relates to technical field of underwater acoustic communication more particularly to a kind of multifunctional water acoustical signal hairs based on software sonar Generation method, generating device and multifunctional water acoustical signal source device.

Background technique

It is well known that the transmission loss of acoustical signal is much smaller than radio signal in water, underwater sound communication is underwater so far The prevailing transmission means of telecommunication.In addition, the underwater sound signals such as radiated noise of submarine target have target analysis and processing There is important value.However, directly very high from sea acquisition water sound communication signal and target radiated noise signal cost, signal acquisition Difficulty is not able to satisfy the demand during scientific research institutions' teaching, scientific research and equipment preparation to underwater sound signal.The current underwater sound Signal generator is divided into two classes: first is that using the radio signal generator of low-frequency range as the dry end portion of underwater sound signal generator Point, it connects power amplifier and energy converter forms the wet end section of signal generator, this underwater sound signal generator signal type It is very limited；Second is that using specific integrated circuit, for example DSP or fpga chip design meet the signal waveform hair of specific needs Raw device, (such as arbitrarily signal generating device [J] the chinese scientific papers of the such as Wang Zhuo sun based on FPGA is online, 2010.).This side Formula has certain flexibility, but circuit design is at high cost, and when needing new waveform, upgrading is updated to be limited by hardware resource. The waveform generating section of above-mentioned signal generator is strong to hardware device dependence, is not easy to signal waveform and updates upgrading.Furthermore it is existing Some underwater sound signal generators do not have underwater acoustic channel copying, can not simulate different waters underwater acoustic channel, limit signal hair The application range of raw device.Therefore, in order to meet the needs that sound signal analysis handles teaching and scientific research, there is an urgent need to a kind of modules Change and occurs with the restructural portable underwater sound signal that can simulate different underwater sound signal waveforms and different marine environment Acoustic channel Device.

Summary of the invention

For existing underwater sound signal generator signal kinds it is limited, signal wave is not easy to by force to hardware device dependence Shape updates upgrading and does not have the problems such as underwater acoustic channel copying, and the present invention provides a kind of multifunctional water acoustical signal generation Method.

In a first aspect, the present invention provides a kind of multifunctional water acoustical signal method for generation, this method comprises:

Signal parameter information is received, the signal parameter information includes the parameter information for generating water sound communication signal And/or the parameter information for generating ship-radiated noise；

Different types of underwater sound signal is generated according to different signal parameter information.

Further, this method further include:

The parameter information for generating underwater acoustic channel is received, is generated according to the parameter information for generating underwater acoustic channel Underwater acoustic channel under the conditions of specified sea areas；

It receives audio signal and stores and playing back audio signal.

Further, this method further include:

One of audio signal according to the water sound communication signal of generation, the ship-radiated noise of generation and playback is more Kind and the underwater acoustic channel that generates, and and/or default ambient noise generate underwater sound signal under different channels and noise circumstance.

Further, described for generate the parameter information of water sound communication signal to include: signal modulation mode, signal modulation The corresponding modulation parameter of mode, channel coding method and the corresponding coding parameter of channel coding method, and and/or m-sequence it is straight Connect spread spectrum and sequence length；

It is described for generate the parameter information of ship-radiated noise to include: the current speed of a ship or plane, maximum speed, tonnage and propeller The number of blade.

Further, described for generate the parameter information of underwater acoustic channel to include: marine environment temperature, marine environment salt Degree, marine environment depth, underwater sound signal send depth, underwater sound signal receives depth and underwater sound signal propagation distance.

Further, the acquisition methods of the marine environment temperature, marine environment salinity and marine environment depth are as follows: pass through It sets visualized map interface latitude coordinates and obtains the marine environment temperature in any sea area, marine environment in Argo seas and oceans database Salinity and marine environment depth.

Second aspect, the embodiment of the present invention provide a kind of multifunctional water acoustical signal generating device based on software sonar, packet It includes:

Water sound communication signal generation module, for receiving the parameter information of water sound communication signal and generating underwater sound communication letter Number；

Ship-radiated noise generation module is made an uproar for receiving the parameter information of ship-radiated noise and generating naval vessel radiation Sound；

Underwater acoustic channel generation module is believed for the underwater sound under the conditions of receiving the parameter information of underwater acoustic channel and generating specified sea areas Road；

Ambient noise generation module, for generating default ambient noise；

Audio signal storage and playback module, for receiving audio signal and storing and playing back audio signal.

The third aspect, the present invention provide a kind of multifunctional water acoustical signal source device based on software sonar, be divided into dry end and Two parts of green end, the dry end include multifunctional water acoustical signal generating device as claimed in claim 7 and the sound for D/A conversion Card；The green end includes underwater sound signal emitter, and the underwater sound signal emitter includes power amplifier and energy converter, institute The working band for stating power amplifier and energy converter needs to cover the frequency range that signal occurs；

The underwater sound signal that the multifunctional water acoustical signal generating device generates is exported to the input terminal of the sound card, the sound The output end of card connects the input terminal of the power amplifier, and the output of the power amplifier terminates to the energy converter, leads to The energy converter is crossed to launch the underwater sound signal.

Fourth aspect, the embodiment of the present invention provide a kind of electronic equipment, comprising: memory and processor, the processor Mutual communication is completed by bus with the memory；The memory is stored with the program that can be executed by the processor Instruction, the processor call described program instruction to be able to carry out the above method, for example, receive signal parameter information, institute Stating signal parameter information includes the parameter information for generating water sound communication signal and/or the ginseng for generating ship-radiated noise Number information；Different types of underwater sound signal is generated according to different signal parameter information.

5th aspect, the embodiment of the present invention provide a kind of computer readable storage medium, are stored thereon with computer program, The computer program realizes the above method when being executed by processor, for example, receives signal parameter information, the signal ginseng Number information includes the parameter information for generating water sound communication signal and/or the parameter information for generating ship-radiated noise； Different types of underwater sound signal is generated according to different signal parameter information.

Beneficial effects of the present invention:

A kind of multifunctional water acoustical signal method for generation and device provided by the invention design module using software sonar thought Change restructural different sound-source signal waveform mechanisms, by receiving different signal parameter information, according to the letter received Number parameter information generates different types of sound-source signal (such as water sound communication signal, ship-radiated noise), and supports audio The storage and playback (audio signal can be used as another sound-source signal) of signal, then simulation generates the water under the conditions of different waters Acoustic channel can finally simulate the underwater sound signal (i.e. reception signal) for generating different sound sources by different underwater acoustic channels.The present invention A kind of multifunctional water acoustical signal source device provided covers the power amplifier for the frequency range that signal occurs by setting and changes Energy device, can effectively launch the underwater sound signal that underwater sound signal generating device generates.To sum up, more function provided by the invention A plurality of types of underwater sound signals can be generated in energy underwater sound signal method for generation and device and multifunctional water acoustical signal source device, It is weak to hardware device dependence, upgrading is updated convenient for signal waveform, and underwater acoustic channel copying can be provided, meets different religions Subject grinds needs.

Detailed description of the invention

Fig. 1 is a kind of flow diagram of multifunctional water acoustical signal method for generation provided in an embodiment of the present invention；

Fig. 2 is a kind of structural schematic diagram of multifunctional water acoustical signal generating device provided in an embodiment of the present invention；

Fig. 3 is the flow diagram provided in an embodiment of the present invention for generating water sound communication signal；

Fig. 4 is the flow diagram provided in an embodiment of the present invention for generating ship-radiated noise；

Fig. 5 is the flow diagram provided in an embodiment of the present invention for generating and receiving signal；

Fig. 6 is the structural schematic diagram of multifunctional water acoustical signal source device provided in an embodiment of the present invention；

Fig. 7 is the structural block diagram of electronic equipment provided in an embodiment of the present invention.

Specific embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention Figure, technical solution in the embodiment of the present invention are explicitly described, it is clear that described embodiment is a part of the invention Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.

The present invention designs the different sound-source signal waveform mechanisms of modular reconfigurable using software sonar thought.Such as figure Shown in 2, the embodiment of the present invention provides a kind of multifunctional water acoustical signal generating device based on software sonar, which includes the underwater sound Signal of communication generation module 101, underwater acoustic channel generation module 103, receives signal generation at ship-radiated noise generation module 102 Module 104, ambient noise generation module 105 and audio signal storage and playback module 106.It is i.e. provided in an embodiment of the present invention Multifunctional water acoustical signal generating device can provide a plurality of types of generation signals: water sound communication signal, ship-radiated noise, sound Underwater sound signal under underwater acoustic channel and different channels and noise circumstance under the conditions of frequency signal, specified sea areas.

As shown in Figure 1, the embodiment of the invention provides a kind of multifunctional water acoustical signal method for generation based on software sonar, The following steps are included:

S101: signal parameter information is received, the signal parameter information includes the parameter for generating water sound communication signal Information and/or parameter information for generating ship-radiated noise；

S102: different types of underwater sound signal is generated according to the difference of the signal parameter information received.

Specifically, water sound communication signal generation module 101 receives the parameter information for generating water sound communication signal, and root Corresponding water sound communication signal is generated according to the parameter information received.Ship-radiated noise generation module 102 is received for generating The parameter information of ship-radiated noise, and corresponding ship-radiated noise is generated according to the parameter information received.Different function Signal generation module the underwater sound signals of corresponding types is generated according to the signal parameter information that is respectively received.And it is directed to some Signal generation module, which, which generates the specific underwater sound according to the signal specific parameter information that it is received every time, believes Number.

As shown in the above, the multifunctional water acoustical signal method for generation provided in an embodiment of the present invention based on software sonar Using the different sound-source signal waveform mechanisms of software sonar thought design modular reconfigurable, received so as to basis The difference of signal parameter generate different types of underwater sound signal, to realize underwater sound signal generator signal wide variety, can It updates upgrading and specific ocean underwater acoustic channel can be simulated according to the Ocean environment information of specified sea areas, enable simulation and produce The underwater sound signal that raw different sound sources pass through different ocean underwater acoustic channels.

On the basis of the above embodiments, the multifunctional water acoustical signal hair provided in an embodiment of the present invention based on software sonar Generation method, further includes: receive the parameter information for generating underwater acoustic channel, believed according to the parameter for generating underwater acoustic channel Breath generates underwater acoustic channel under the conditions of specified sea areas；It receives audio signal and stores and playing back audio signal.

Specifically, underwater acoustic channel generation module 103 is generated according to the parameter information for generating underwater acoustic channel received Underwater acoustic channel under the conditions of specified sea areas；Audio signal storage and playback module 106 receive the audio signal imported, and according to setting Path and filename store the audio signal；Or pre-stored audio is believed according to the path of setting and filename playback Number.

On the basis of the above embodiments, described for generate the parameter information of water sound communication signal to include: signal modulation The corresponding modulation parameter of mode, signal modulation mode, channel coding method and the corresponding coding parameter of channel coding method, and And/or m-sequence Direct-Spread and sequence length.

As shown in figure 3, the process that water sound communication signal generation module 101 generates water sound communication signal is followed successively by information source data Generation, channel coding, information framing and carrier modulation, or carry out Direct Sequence Spread Spectrum again after information framing, then carry out Carrier modulation.The process generated according to water sound communication signal when generating the water sound communication signal it is found that need to use at least two Kind parameter information: Channel coding parameters information (i.e. the corresponding coding parameter of channel coding method and channel coding method) and carrier wave Modulation parameter (i.e. the corresponding modulation parameter of signal modulation mode and signal modulation mode).Direct Sequence Spread Spectrum parameter (i.e. m-sequence Direct-Spread and sequence length) it can decide whether to be arranged according to the actual situation.

Dynamically load and the reconstruct according to actual needs of every kind of signal modulation mode, can be generated digital modulation signals, such as MFSK, MPSK, OFDM, LFM, the corresponding modulation parameter of every kind of modulation system are as shown in table 1.

1 modulation system of table and parameter

Modulation system	Modulation parameter
		MFSK	Order of modulation, bandwidth, carrier frequency, frequency interval
MPSK	Order of modulation, bandwidth, carrier frequency, rolloff-factor
		OFDM	Subcarrier number, bandwidth, carrier frequency, protection interval
LFM	Bandwidth, time width, initial frequency

Dynamically load and the reconstruct according to actual needs of every kind of channel coding method.Local channel coding mode and relevant parameter As shown in table 2, other coding modes can be supplemented as needed.

2 channel coding method of table and parameter

Channel coding method	Coding parameter
		Convolutional code	Code rate, constraint length
LDPC code	Code rate, block size
		BCH code	Block size, error correcting capability

For MPSK modulated signal, m-sequence Direct-Spread can be selected after completing channel coding setting, play expansion bands Ability that is wide, reinforcing anti-interference.Using m-sequence method parameter spreading code, needing setup parameter is spread code length, according to reality Need dynamically load and reconstruct.

It is described for generate the parameter information of ship-radiated noise to include: current boat on the basis of the various embodiments described above Speed, maximum speed, tonnage and screw blade the piece number.

As shown in figure 4, ship-radiated noise generation module 102 is receiving the current speed of a ship or plane, maximum speed, tonnage and spiral After the parameter informations such as blade the piece number, the process of ship-radiated noise is generated are as follows: firstly, generating propeller noise with continuous spectrum G_c(t)、 Propeller discrete noise G_l(t) and modulation envelope a (t)；Then, according to the propeller noise with continuous spectrum G_c(t), propeller Discrete noise G_l(t) and modulation envelope a (t) is according to formula (2) generation ship-radiated noise S (t):

S (t)=| 1+a (t) | G_c(t)+G_l(t) (2)。

Specifically, the generation propeller noise with continuous spectrum G_c(t) process includes:

According to the current speed of a ship or plane v and maximum speed v_max, the spectrum of propeller noise with continuous spectrum is calculated according to formula (3) Peak position f₀:

According to the current speed of a ship or plane v, the spectrum peak position f₀With the tonnage DT, it is continuous that propeller is calculated according to formula (4) Sound source level SL at each Frequency point of spectral noise_f:

Wherein, SL_f0=SL_s+20-lg(f₀),k₁And k₂Respectively it is used for Indicate the parameter of frequency ascent stage and frequency descending branch noise with continuous spectrum variation speed.Under normal conditions, k₁=6, k₂=8.

According to the sound source level SL at each Frequency point of propeller noise with continuous spectrum_f, according to setting Frequency Sampling Method (for example, The Frequency Sampling Method introduced in " Digital Signal Processing " (publishing house, Xian Electronics Science and Technology University, Wu Ying etc. write) teaching material) it is adopted Sample is programmed using matlab, and design obtains the FIR filter with Specific frequency response, by pre-generated zero-mean gaussian White noise is by obtaining propeller noise with continuous spectrum G after the FIR filter_c(t)。

The generation propeller discrete noise G_l(t) process includes:

Discrete noise G_l(t) can be superimposed with multiple simple signals indicates, i.e., generates propeller discrete spectrum according to formula (5) and make an uproar Sound G_l(t):

Wherein, A_k、f_k、Amplitude, frequency and the random phase of respectively k-th sinusoidal signal, K are multi harmonics, f_k= KBs (v+c)/c, k are overtone order, and B is screw blade the piece number, and s is revolution speed of propeller, and v is the current speed of a ship or plane, and c is that sound passes in water Broadcast speed.Wherein, A_kThere is relationship with time, the speed of a ship or plane, navigate depth, sea situation, water temperature etc., influence factor is complex, can be with uniformly Random distribution emulates its amplitude characteristic.General line spectrum component amplitude is more than continuous spectrum 10-25dB.Random phase[0,2 π] can be used Interior uniformly distributed random variable generates to simulate.

It is described generate modulation envelope a (t) process include:

By modulation envelope a (t) as with random magnitude, same shape, the pulse feature random process of identical repetition period It handles, i.e., generates modulation envelope a (t) according to formula (6):

Wherein, m is modulation depth parameter, and T=1/s is propeller swing circle, and s is revolution speed of propeller, and B is screw blade The piece number,ξ is the mutual independent stochastic variable for characterizing different pulse amplitude, is respectively obeyed centainly Probability distribution is generally taken as this probability distributionWhereinFor the average value of amplitude.σ is to indicate that pulse is wide The parameter of degree.For the blade frequencies modulation that propeller swing circle is T, the number of blade is B, the pulse repetition period isIt can It enables σ=T/ (BD), is spaced between D characterization beat, value is bigger, and beat is more clear.

It is described for generate the parameter information of underwater acoustic channel to include: marine environment temperature on the basis of the various embodiments described above Degree, marine environment salinity, marine environment depth, underwater sound signal send depth, underwater sound signal receives depth and underwater sound signal is propagated Distance.

Specifically, latitude coordinates are arranged by visual map interface, obtain any sea area in Argo seas and oceans database Marine environment temperature, marine environment salinity, the information such as marine environment depth；Select Bellhop ray model or Kraken letter Positive wave pattern carries out Acoustic channel emulation, forms sound velocity profile.According to the sound velocity profile, in conjunction with the marine environment in any sea area Ocean channel Acoustic Wave Propagation, sound under this condition is calculated in the information such as temperature, marine environment salinity, marine environment depth Line chart and shock response.The Argo seas and oceans database can be stored in advance in local and carry out database update in due course.

As shown in figure 5, the present invention provides another multifunctional water acoustical signal generation side on the basis of the various embodiments described above Method, comprising the following steps: according in the audio signal of the water sound communication signal of generation, the ship-radiated noise of generation and playback Underwater acoustic channels that are one or more and generating, and and/or default ambient noise generate the underwater sound under different channels and noise circumstance Signal.

Specifically, underwater sound signal refers to sound-source signal by underwater acoustic channel under so-called different channels and noise circumstance, and In addition simulating obtained reception signal after default ambient noise.For example, water sound communication signal, ship-radiated noise and playback Audio signal can regard sound-source signal as, and underwater sound signal r (t) can be generated according to formula (1) under different channels and noise circumstance:

Wherein,For convolution algorithm, x (t) is water sound communication signal, ship-radiated noise and/or the audio signal of playback, H (t) is underwater acoustic channel, and w (t) is default ambient noise.

When sound-source signal is water sound communication signal, the generation of water sound communication signal and receive process are as follows:

S201: it generates water sound communication signal x (t)；It can refer to the water sound communication signal introduced in above-described embodiment and generate stream Journey, details are not described herein again；

S202: the underwater acoustic channel h (t) under the conditions of specified sea areas is generated；It can refer to the underwater sound letter introduced in above-described embodiment Road product process, details are not described herein again；

S203: according to the difference of scene, specific ambient noise w (t) is generated, such as ambient noise is arranged are as follows: Gauss White noise or alpha Stable distritation noise.

S204: reception signal r (t) corresponding with the water sound communication signal is generated according to formula (1).

Similarly, when sound-source signal is water sound communication signal, the generation of ship-radiated noise and receive process are as follows:

S301: it generates ship-radiated noise x (t)；It can refer to the ship-radiated noise introduced in above-described embodiment and generate stream Journey, details are not described herein again；

S302: the underwater acoustic channel h (t) under the conditions of specified sea areas is generated；It can refer to the underwater sound letter introduced in above-described embodiment Road product process, details are not described herein again；

S303: according to the difference of scene, specific ambient noise w (t) is generated, such as ambient noise is arranged are as follows: Gauss White noise or alpha Stable distritation noise.

S304: reception signal r (t) corresponding with the ship-radiated noise is generated according to formula (1).

Similar, details are not described herein again for the playback of audio signal and receive process.

As shown in fig. 6, the embodiment of the present invention also provides a kind of multifunctional water acoustical signal source device.The multifunctional water acoustical signal Source device is divided into two parts of dry end and green end, and dry end includes the multi-functional underwater sound letter that can be realized in above-mentioned each method embodiment The computer equipment (i.e. multifunctional water acoustical signal generating device) and the sound card as D/A converter, green end of number method for generation be Underwater sound signal emitter, including power amplifier and energy converter.The signal that computer equipment generates is exported to the input of sound card End, the input terminal of the output termination power amplifier of sound card, the output end of power amplifier are connected to transmitting terminal by watertight cable and change It can device.

To be used as D/A converter sound card by the digital signal that system generates be converted to analog signal and export after, by it The input terminal for being connected to power amplifier amplifies, and then sends energy converter to through watertight cable, can basis in practical application The demands such as emission signal frequency range, bandwidth requirement select the energy converter and power amplifier of different model, but require work frequency With the frequency range for needing to cover generation signal, matching is realized.

Referring to shown in Fig. 6, in the embodiment of the present invention, the mode of connection in underwater sound signal source are as follows: generated in computer equipment 1 Signal export to the input terminal of sound card, the input terminal of the output termination power amplifier of sound card 1, the output end of power amplifier It is connected to transmitting terminal energy converter by watertight cable, transmitting terminal energy converter is placed on the one end in pond.The wiring of underwater sound signal reception device Mode are as follows: receiving end energy converter is placed on the other end in pond, with transmitting terminal energy converter horizontal distance 20m, then passes through watertight cable It is connected to the input terminal of sound card 2, then the output end of sound card 2 is connected to the reading and sight that computer equipment 2 receive signal It surveys.

In this embodiment, the energy converter of selection is cylindrical transducer, and centre frequency 16kHz works in 13-19kHz In band limits, transmitting voltage response>140dB, receiving sensitivity>-194dB, fluctuating<3dB, maximum sound source level up to 197dB, Horizontal non-directional, 60 ° of vertical angle of release.Power amplifier is high efficiency D type digital power amplifier, operating voltage 15-36V, PWD mode Output, amplifying power is adjustable, signal-to-noise ratio 95dB, harmonic distortion < 1%, peak power output 80W.

The embodiment specific implementation process:

1) experimental site is arranged as shown in Figure 6, and sound card output size and power amplifier are adjusted according to transmitting-receiving both ends distance Amplification factor；

2) computer 1 generates accordingly after executing correspondingly computer program instructions according to the signal parameter information received Signal and store to local；

3) pass through sound card 1 for the digital signal converting analogue signals of generation；

4) analog signal is launched by underwater sound signal emitter (i.e. power amplifier, transmitting terminal energy converter)；

5) signal is received by underwater sound signal reception device (i.e. receiving end energy converter) and is sent to sound card 2, it will be received Analog signal is converted to digital signal, then is read and observe by computer 2 and be saved in local；

6) change the parameter informations such as signal tranmitting frequency, signal type, coding mode and repeat step 2) -5)；

7) signal will be received to compare with signal occurs, checking system performance.

According to experimental result it is found that in energy converter working frequency range, signal generated is correctly emitted.

As shown in fig. 7, the embodiment of the present invention also provides a kind of electronic equipment, which includes: memory 702 and place It manages device 701, the processor 701 and the memory 702 and mutual communication is completed by bus 703；The memory 702 It is stored with the program instruction that can be executed by the processor, it is as follows that the processor 701 calls described program instruction to be able to carry out Method, for example, receive signal parameter information, the signal parameter information includes the parameter for generating water sound communication signal Information and/or parameter information for generating ship-radiated noise；It is generated according to different signal parameter information different types of Underwater sound signal.

It will be understood by those skilled in the art that computer equipment may include more or fewer components, or combine certain A little components or different components, such as computer installation can also include input-output equipment, network access device, bus Deng.User interface may include display screen, input unit such as keyboard etc..Network interface optionally may include the wired of standard Interface, wireless interface (such as blue tooth interface, WI-FI interface).For example, processor can be central processing unit, can also be Other general processors, digital signal processor, specific integrated circuit, ready-made programmable gate array or other programmable logic Device etc..Processor is the control centre of computer equipment, utilizes each of various interfaces and the entire computer installation of connection A part.Memory can be used for storing computer program and/or module, and processor is stored in memory by operation or execution Computer program and/module, and call the data that are stored in memory, realize the various functions of computer equipment.

The embodiment of the present invention also provides a kind of computer program product, and the computer program product is non-temporary including being stored in Computer program on state computer readable storage medium, the computer program include program instruction, when described program instructs When being computer-executed, computer is able to carry out method provided by above-mentioned each method embodiment, for example, receives signal ginseng Number information, the signal parameter information include parameter information for generating water sound communication signal and/or for generating naval vessel spoke Penetrate the parameter information of noise；Different types of underwater sound signal is generated according to different signal parameter information.

The embodiment of the present invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage meter The instruction of calculation machine, the computer instruction make the computer execute method provided by above-mentioned each method embodiment, for example, Signal parameter information is received, the signal parameter information includes parameter information for generating water sound communication signal and/or is used for Generate the parameter information of ship-radiated noise；Different types of underwater sound signal is generated according to different signal parameter information.This is deposited Storage media includes but is not limited to: CD, floppy disk, hard disk, scratch pad memory etc..

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features； And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and Range.