阅读说明：本技术 高频图像声呐信号处理系统 (High-frequency image sonar signal processing system ) 是由 周生启 杨凯强 徐彤彤 杨飞 钟艺玲 牛耀 刘耸霄 李树贤 李鑫旺 于 2020-11-30 设计创作，主要内容包括：本发明涉及一种信号处理系统,尤其是高频图像声呐信号处理系统,包括：处理控制模块,处理控制模块用于处理信号和存储信号,还用于将信号实时传输给声呐系统的主控模块；多通道信号采集模块,多通道信号采集模块用于采集声呐的模拟信号并将模拟信号转换成数字信号发送给处理控制模块；DAC输出模块,DAC模块与处理控制模块连接,用于将数字信号转换成模拟电流控制执行机构；电源模块,电源模块与处理控制模块连接,用于提供驱动电源；罗经接口,罗经接口与处理控制模块连接,用于连接罗经传感器；及均与处理控制模块连接的内存模块、存储模块、SD卡模块、以太网接口和串口通信接口。该系统信号处理速度快、信号处理量高。(The invention relates to a signal processing system, in particular to a high-frequency image sonar signal processing system, which comprises: the processing control module is used for processing signals, storing the signals and transmitting the signals to a main control module of the sonar system in real time; the system comprises a multichannel signal acquisition module, a processing control module and a data processing module, wherein the multichannel signal acquisition module is used for acquiring analog signals of sonar, converting the analog signals into digital signals and sending the digital signals to the processing control module; the DAC output module is connected with the processing control module and used for converting the digital signal into an analog current control actuating mechanism; the power supply module is connected with the processing control module and is used for providing a driving power supply; the compass interface is connected with the processing control module and is used for connecting the compass sensor; and the memory module, the storage module, the SD card module, the Ethernet interface and the serial port communication interface are all connected with the processing control module. The system has high signal processing speed and high signal processing quantity.)

1. High frequency image sonar signal processing system, its characterized in that includes:

the system comprises a processing control module, a main control module and a sonar system, wherein the processing control module is used for processing signals, storing the signals and transmitting the signals to the main control module of the sonar system in real time;

the system comprises a multi-channel signal acquisition module, a processing control module and a data processing module, wherein the multi-channel signal acquisition module is used for acquiring analog signals of sonar, converting the analog signals into digital signals and sending the digital signals to the processing control module;

the DAC module is connected with the processing control module and used for converting a digital signal into an analog current control actuating mechanism;

the power supply module is connected with the processing control module and is used for providing a driving power supply;

the compass interface is connected with the processing control module and is used for connecting a compass sensor; and the memory module, the storage module, the SD card module, the Ethernet interface and the serial port communication interface are all connected with the processing control module.

2. A high-frequency image sonar signal processing system according to claim 1,

the processing control module comprises a single chip microcomputer U1, and the single chip microcomputer U1 is an XC7Z045-1FFG676I chip.

3. A high-frequency image sonar signal processing system according to claim 1,

the multi-channel signal acquisition module comprises not less than one acquisition converter U1, and the acquisition converter is AFE5832 LPZAV.

4. A high-frequency image sonar signal processing system according to claim 1,

the memory module comprises a DDR3 memory chip and a voltage stabilizing chip U29, wherein the voltage stabilizing chip U29 is a TPS51200 DRCT.

5. A high-frequency image sonar signal processing system according to claim 1,

the power module includes:

a first power supply unit comprising a TPS 565201;

a second power supply unit comprising an LTC3633EFE # PBF;

a third power supply unit comprising a TPS74401 RG;

a fourth power supply unit comprising an LMZ21701 SILT.

6. A high-frequency image sonar signal processing system according to claim 1,

the ethernet interface includes a chip U206, and the chip U206 is 88E 1116R.

Technical Field

The invention relates to a signal processing system, in particular to a high-frequency image sonar signal processing system.

Background

Sonar is one of the most important means for naval combat at present. The sonar equipment is not used in submarine warfare, anti-submarine warfare, naval mine warfare and anti-naval mine warfare. The underwater combat activity range and attack defense capability of a submarine depend greatly on the sonar with which the submarine is equipped, so the sonar is called the otoscope of underwater weapon equipment. Once the eyes of the ears are lost, the underwater weaponry almost completely loses the fighting power and faces a great survival risk. The anti-diving, anti-diving and anti-mine capabilities of surface vessels also depend primarily on the sonar being equipped. It can be said that there is no sea-making right without sonar. Sonar technology has enjoyed a very important position not only in underwater military communications, navigation and anti-submarine operations, but has also become an important means for humans to recognize, develop and utilize the ocean.

The circuit system of typical sonar includes three major blocks, front-end, conditioning and signal processing. The signal processing is an information data processing and computing center of sonar. The traditional sonar signal processing circuit has various defects of low signal processing speed, incapability of simultaneously processing multiple signals, weak signal transmission capability and the like, and cannot meet the current requirement of rapidly finishing signal processing and transmission.

Disclosure of Invention

In order to solve the above problems, the present invention provides a high-frequency image sonar signal processing system with high signal processing speed and high signal processing capacity, and the specific technical scheme is as follows:

high-frequency image sonar signal processing system includes: the system comprises a processing control module, a main control module and a sonar system, wherein the processing control module is used for processing signals, storing the signals and transmitting the signals to the main control module of the sonar system in real time; the system comprises a multi-channel signal acquisition module, a processing control module and a data processing module, wherein the multi-channel signal acquisition module is used for acquiring analog signals of sonar, converting the analog signals into digital signals and sending the digital signals to the processing control module; the DAC module is connected with the processing control module and used for converting a digital signal into an analog current control actuating mechanism; the power supply module is connected with the processing control module and is used for providing a driving power supply; the compass interface is connected with the processing control module and is used for connecting a compass sensor; and the memory module, the storage module, the SD card module, the Ethernet interface and the serial port communication interface are all connected with the processing control module.

Further, the processing control module comprises a single chip microcomputer U1, and the single chip microcomputer U1 is an XC7Z045-1FFG676I chip.

Further, the multi-channel signal acquisition module comprises not less than one acquisition converter U1, and the acquisition converter is AFE5832 LPZAV.

Further, the memory module includes a DDR3 memory chip and a regulator chip U29, and the regulator chip U29 is a TPS51200 DRCT.

The VTTDDR voltage regulator module is required to be as close to a DDR3 memory chip as possible in the PCB layout.

Further, the power module includes: a first power supply unit comprising a TPS 565201; a second power supply unit comprising an LTC3633EFE # PBF; a third power supply unit comprising a TPS74401 RG; a fourth power supply unit comprising an LMZ21701 SILT.

Further, the ethernet interface includes a chip U206, and the chip U206 is 88E 1116R.

Compared with the prior art, the invention has the following beneficial effects:

the high-frequency image sonar signal processing system provided by the invention has the advantages of high signal processing speed and high signal processing quantity.

Drawings

FIG. 1 is a block diagram of a high-frequency image sonar signal processing system;

FIG. 2 is an analog signal acquisition input circuit diagram of a multi-channel acquisition module

FIG. 3 is a circuit diagram of the multi-channel acquisition module converting the analog signal into the digital signal and outputting the digital signal;

FIG. 4 is a circuit diagram of a memory module;

FIG. 5 is a schematic circuit diagram of the TPS565201 power chip

FIG. 6 is a schematic circuit diagram of the power chip LTC3633EFE # PBF

FIG. 7 is a schematic circuit diagram of the TPS74401RG power chip

FIG. 8 is a schematic circuit diagram of a power chip LMZ21701SILT

FIG. 9 is a schematic diagram of an Ethernet interface circuit

FIG. 10 is a circuit schematic of XC7Z045-1FFG 676I.

Detailed Description

The invention will now be further described with reference to the accompanying drawings.

As shown in fig. 1 to 10, the high-frequency image sonar signal processing system includes: the system comprises a processing control module, a main control module and a sonar system, wherein the processing control module is used for processing signals, storing the signals and transmitting the signals to the main control module of the sonar system in real time; the system comprises a multi-channel signal acquisition module, a processing control module and a data processing module, wherein the multi-channel signal acquisition module is used for acquiring analog signals of sonar, converting the analog signals into digital signals and sending the digital signals to the processing control module; the DAC module is connected with the processing control module and used for converting a digital signal into an analog current control actuating mechanism; the power supply module is connected with the processing control module and is used for providing a driving power supply; the compass interface is connected with the processing control module and is used for connecting a compass sensor; and the memory module, the storage module, the SD card module, the Ethernet interface and the serial port communication interface are all connected with the processing control module.

The processing control module comprises a single chip microcomputer U1, and the single chip microcomputer U1 is an XC7Z045-1FFG676I chip.

The multi-channel signal acquisition module comprises not less than one acquisition converter U1, and the acquisition converter is AFE5832 LPZAV.

The memory module comprises a DDR3 memory chip and a voltage stabilizing chip U29, wherein the voltage stabilizing chip U29 is TPS51200 DRCT.

The VTTDDR voltage regulator module is required to be as close to a DDR3 memory chip as possible in the PCB layout.

The power module includes: a first power supply unit comprising a TPS 565201; a second power supply unit comprising an LTC3633EFE # PBF; a third power supply unit comprising a TPS74401 RG; a fourth power supply unit comprising an LMZ21701 SILT.

The ethernet interface includes a chip U206, and the chip U206 is 88E 1116R.

As shown in FIG. 10, the control core device is an XC7Z045-1FFG676I chip of ZYNQ architecture series. The external interface comprises 64 paths of ADC data acquisition and preprocessing modules, a DAC output module, a power supply module, a Flash storage module, a DDR3 module, an Ethernet module, a serial port communication interface and the like. The functions of digital signal processing, gigabit network communication and the like can be realized in the device. The ZYNQ framework belongs to a heterogeneous series processor, the interior of the processor is divided into two parts of PS (ARM) and PL (FPGA), the functions of high-speed acquisition and processing of 64-channel analog receiving signals, local storage and real-time transmission of large-capacity data, quick reading of local storage data, 100Mbps/1.0Gbps Ethernet communication, serial port communication and the like are mainly completed, the interface interconnection of various protocols can be supported, and reliable guarantee can be provided for tasks such as real-time signal acquisition processing and high-speed real-time data transmission of systems such as sonar.

As shown in fig. 2 and fig. 3, the main function of the multi-channel signal acquisition module is to perform analog-to-digital conversion on 64 analog signals input from the outside, and the analog-to-digital conversion is mainly realized by an ADC module. The ADC chip is selected from AFE5832LPZAV of TI company. AFE5832LPZAV is a highly integrated Analog Front End (AFE) solution, specifically designed for chips requiring high performance, low power consumption, and small size portable ultrasound systems.

The AFE5832LPZAV component is internally formed by a multi-chip Module (MCM) having two parts: 1 is a Voltage Controlled gain Amplifier (VCA) section and 1 ADC section. The VCA chip has 32 channels to interface with the 16 channels of the ADC chip. Each ADC channel alternately converts odd and even VCA channels.

And 4 AFE5832LPZAV chips are adopted to complete the acquisition and the preprocessing of 64 paths of analog signals. 64 analog signals are input into an AFE5832LPZAV in a single-ended signal form, and each AFE5832LPZAV chip uses 16 odd channels to complete data acquisition. The acquisition rate of the AFE5832LPZAV chip is 5MSPS, and the sampling precision is 12 bits. Then the AFE5832LPZAV chip completes analog-to-digital conversion, and finally the analog-to-digital conversion is output in the form of digital signals.

As shown in fig. 5, TPS565201 is a switching power supply chip provided by TI corporation, and its input power supply is dc +12V, and a dc output power supply of +5.4V is obtained by configuring a feedback resistor. The +5.4V is converted to +5.4V _ Analog through the filter. Both of which are powered by external circuit boards.

As shown in fig. 6, LTC3633F is a switching power supply chip provided by LINEAR corporation. The input power supply is DC +5.4V, and the DC output power supplies of +3.3V, +1.8V, +1.5V, +1.2V are respectively obtained by configuring feedback resistors. The LTC3633EFE # PBF outputs a specific schematic diagram of +3.3V and +1.5V, and the schematic diagram of +1.8V and +1.2V is basically consistent with that of FIG. 5 except that the configuration resistance is inconsistent.

As shown in FIG. 7, TPS74401RG is a low dropout linear regulator (LDO) designed and produced by TI corporation. The programmable soft start mode can reduce the surge current of the capacitor when the device is started, thereby reducing the stress of an input power supply to the maximum extent. The input voltage is +5.4V, the output voltage is +1V, and the ZYNQ master control chip is powered.

As shown in fig. 8, LMZ21701SILT is a dc buck chip supplied by TI corporation. The input power supply is direct current +12V, and a direct current output power supply of +5V is obtained by configuring a feedback resistor. The +5V is mainly responsible for supplying power to the DA conversion chip AD5542A _ MO-153-AB and other chips.

As shown in fig. 9, ethernet is primarily used to facilitate debugging and program software upgrades of the entire system. In the process of verifying the beamforming algorithm, 64 paths of data after analog conversion are transmitted to DDR3 through Ethernet, then the data in DDR3 is read through a ZYNQ framework processor to be beamformed and subjected to relevant algorithm processing, finally the processed result is transmitted to the outside through the Ethernet, and in addition, the remote updating of functions in the ZYNQ framework processor can also be realized through an Ethernet interface.

The working principle is as follows:

the multi-channel signal acquisition module transmits the acquired 64-channel analog signals to the signal processing circuit, and the acquired analog signals are converted into digital signals through the ADC module and then transmitted to the ZYNQ framework processor. The ZYNQ framework processor processes the digital signals through an algorithm loaded by the ZYNQ framework processor, and finally, the processed data are stored in a local SD card on one hand, and are transmitted to a main control unit of a sonar system in real time through a gigabit Ethernet interface on the other hand, so that the signal processing of the sonar system is completed.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, which shall fall within the scope of the appended claims.