阅读说明：本技术 一种二维扫描被动毫米波成像系统及方法 (A kind of two-dimensional scanning passive millimeter wave imaging system and method ) 是由 邱景辉 王楠楠 闫龙 邱爽 于 2019-09-06 设计创作，主要内容包括：本发明公开了一种二维扫描被动毫米波成像系统及方法,包括：成像系统外壳,用于为可旋转反射板透波,并为可旋转反射板、椭球反射面、固定反射板和接收与成像系统遮光；伺服系统,用于带动成像系统外壳旋转；可旋转反射板,用于毫米波信号至椭球反射面；椭球反射面,用于反射毫米波信号至固定反射板；固定反射板,用于反射毫米波信号至接收与成像系统；接收与成像系统,用于接收毫米波信号并转化为电压信号；采集系统,用于接收电压信号并转化为数字信号；计算机,用于接收数字信号并处理为图像显示。本发明增加了扫描面积,减小了系统体积,降低了成本。(The invention discloses a kind of two-dimensional scanning passive millimeter wave imaging system and methods, comprising: imaging system shell for being pivotable reflective plate wave transparent, and for pivotable reflective plate, ellipsoid reflecting surface, fixed reflecting plate and receives and imaging system shading；Servo-system, for driving imaging system shell to rotate；Pivotable reflective plate, for millimeter-wave signal to ellipsoid reflecting surface；Ellipsoid reflecting surface, for reflecting millimeter-wave signal to fixed reflecting plate；Fixed reflecting plate, for reflecting millimeter-wave signal to reception and imaging system；Reception and imaging system, for receiving millimeter-wave signal and being converted into voltage signal；Acquisition system, for receiving voltage signal and being converted into digital signal；Computer is that image is shown for receiving digital signal and handling.Invention increases scan areas, reduce system bulk, reduce costs.)

1. a kind of two-dimensional scanning passive millimeter wave imaging system, which is characterized in that including imaging system shell (3), rotatable anti- It penetrates plate (4), ellipsoid reflecting surface (5), servo-system (6), fixed reflecting plate (7), receive and imaging system (8), acquisition system (9) With computer (10), wherein

The imaging system shell (3) for being pivotable reflective plate (4) wave transparent, and is the pivotable reflective plate (4), ellipsoid reflecting surface (5), fixed reflecting plate (7) and reception and imaging system (8) shading；

The servo-system (6) drives imaging system shell (3) rotation for being controlled by the computer (10)；

The pivotable reflective plate (4) reflects personnel to be measured (2) for being controlled adjustment reflection angle by the computer (10) Millimeter-wave signal to the ellipsoid reflecting surface (5)；

The ellipsoid reflecting surface (5), for reflecting millimeter-wave signal that the pivotable reflective plate (4) reflects to the fixation Reflecting plate (7)；

The fixed reflecting plate (7), for reflect millimeter-wave signal that the ellipsoid reflecting surface (5) reflects to the reception with Imaging system (8)；

The reception is with imaging system (8), the millimeter-wave signal reflected for receiving the fixed reflecting plate (7), and converts The acquisition system (9) are sent to for voltage signal；

The acquisition system (9), the voltage signal issued for receiving and recording the reception with imaging system (8), is converted into Digital signal is sent to the computer (10)；

The computer (10) is that image is shown for receiving the digital signal of the acquisition system (9) transmission, and handling, also For controlling the servo-system (6) and the pivotable reflective plate (4) rotation.

2. a kind of two-dimensional scanning passive millimeter wave imaging system according to claim 1, which is characterized in that described rotatable Reflecting plate (4), ellipsoid reflecting surface (5), fixed reflecting plate (7) and reception are all installed on the imaging system with imaging system (8) In shell (3), the pivotable reflective plate (4) and fixed reflecting plate (7) are separately mounted to two of the ellipsoid reflecting surface (5) Focal point.

3. a kind of two-dimensional scanning passive millimeter wave imaging system according to claim 2, which is characterized in that the imaging system Shell (3) are united as cylindrical container.

4. a kind of two-dimensional scanning passive millimeter wave imaging system according to claim 2, which is characterized in that described rotatable Reflecting plate (4) rotates along the vertical direction.

5. a kind of two-dimensional scanning passive millimeter wave imaging system according to claim 1, which is characterized in that the servo system System (6) rotates in the horizontal direction.

6. a kind of two-dimensional scanning passive millimeter wave imaging system according to claim 1, which is characterized in that it is described reception with Imaging system (8) is radiometer array.

7. a kind of two-dimensional scanning passive millimeter wave imaging method is based on a kind of two-dimensional scanning described in any one of claims 1-6 Passive millimeter wave imaging system, which is characterized in that the two-dimensional scanning passive millimeter wave imaging method the following steps are included:

Step 1: computer (10) controls servo-system (6) and rotates horizontally, and pivotable reflective plate (4) is driven to be reset to initial bit It sets；

Step 2: personnel (2) to be measured are walked after entering into region to be measured (1) along arc-shaped path, and computer (10) controls servo system System (6) drives imaging system shell (3) to start transfer in the horizontal direction；

Step 3: during transfer, computer (10) control pivotable reflective plate (4) adjusts the angle along the vertical direction, with right Personnel (2) to be measured carry out scanning in column, and generate multiple groups sampled data；

Step 4: judging whether the multiple groups sampled data covers the whole region of personnel to be measured (2), if so, executing step Five；Otherwise, return step three,

Step 5: the comprehensive multiple groups sampled data of computer (10) generates and shows complete scan figure, return step one.

8. a kind of two-dimensional scanning passive millimeter wave imaging method is based on a kind of two-dimensional scanning described in any one of claims 1-6 Passive millimeter wave imaging system, which is characterized in that the two-dimensional scanning passive millimeter wave imaging method the following steps are included:

Step 1: personnel (2) to be measured enter into after region to be measured (1) stands firm, and computer (10) controls that servo-system (6) are horizontal to be turned It is dynamic, drive pivotable reflective plate (4) to scan minimum a line region, and generate one group of sampled data；

Step 2: computer (10) controls pivotable reflective plate (4) and adjusts the angle up-regulation, makes the passive of pivotable reflective plate (4) The adjacent lastrow region of millimeter wave receiving side face；

Step 3: computer (10) control servo-system (6) horizontally rotates, and pivotable reflective plate (4) is driven to carry out horizontal sweep, And generate next group of sampled data；

Step 4: computer (10) judges whether can also detect millimeter wave in the next group of sampled data, if: execute step Rapid five；Otherwise, return step two；

Step 5: the comprehensive multiple groups sampled data of computer (10) generates and shows complete scan figure.

9. a kind of two-dimensional scanning passive millimeter wave imaging method is based on a kind of two-dimensional scanning described in any one of claims 1-6 Passive millimeter wave imaging system, which is characterized in that the two-dimensional scanning passive millimeter wave imaging method the following steps are included:

Step 1: personnel (2) to be measured enter into after region to be measured (1) stands firm, and computer (10) controls that servo-system (6) are horizontal to be turned It is dynamic, drive pivotable reflective plate (4) to scan since most the first from left column, and generate one group of sampled data；

Step 2: computer (10) control servo-system (6) horizontally rotates, and drives the passive millimeter wave of pivotable reflective plate (4) The adjacent next column region of receiving side face；

Step 3: computer (10) controls pivotable reflective plate (4) and rotates vertically, carries out next column region at column scan, and Generate one group of sampled data；

Step 4: computer (10) judge the next group of sampled data whether be region to be measured (1) most it is right one column sampling Data, if so, executing step 5；Otherwise, return step two；

Step 5: the comprehensive multiple groups sampled data of computer (10) generates and shows complete scan figure.

Technical field

The invention belongs to mm-wave imaging fields, more particularly to a kind of two-dimensional scanning passive millimeter wave imaging system and side Method.

Background technique

Passive millimeter wave imaging system does not emit electromagnetic wave completely, only identifies target by receiving the radiation of object itself, Therefore, no target glint and the disadvantages of to human body radiation.

Traditional rays safety detection apparatus has metal detecting system, X-ray safe examination system etc..Obviously, metal safe examination system can only be visited Metal is surveyed, identification can not be detected to as explosive, this nonmetallic dangerous goods of drugs.X-ray safe examination system is due to right Human body is harmful, so the detection to human body can not be used for.

Authorization Notice No. is utility model patent " the comprehensive safety check system based on mm-wave imaging of CN206224001U System " it is mounted with that millimeter wave emits link, multiple millimeter wave array antennas on the support frame, for from different perspectives to tested pair As emitting millimeter-wave signal, and receive the echo-signal from measurand reflex circuit.This safe examination system exist to human body into Row radiation, the disadvantage for influencing personnel's health safety.

Authorization Notice No. is patent of invention " the electric scanning array day applied to millimeter wave imaging system of CN106252885B Line apparatus " disclose it is a kind of for the array antenna of linear array antenna or planar array antenna, it can be achieved that one-dimensional or two-dimentional sweep It retouches.The design occupies more space the problem is that imaging system volume is big, and needs a large amount of antennas, at high cost.

A kind of patent of invention " passive millimeter imaging rays safety detection apparatus " of Authorization Notice No. CN104076358 discloses one The more mature passive millimeter imaging equipment of kind.The equipment uses the method for a rotary reflection plate to realize vertical direction On beam scanning, and by thering is the receiving antenna centainly to misplace to receive signal in two rows of horizontal directions, finally by adopting The processing of sample signal is imaged to realize.But single rotary reflection plate can only realize beam scanning in vertical direction, lead to water Square to number of samples it is less, the horizontal field of view of scanning is relatively narrow, and working efficiency is low.To make up asking for horizontal direction undersampling Topic, receiving antenna are generally equipped with more radiometer in the horizontal direction.Therefore, this kind of millimeter wave image pickup device often cost compared with It is high.

To solve the problems, such as that above-mentioned imaging system occupied space is big, horizontal field of view is narrow, at high cost, this patent proposes one kind Two-dimensional scanning passive millimeter wave imaging method.To realize horizontal sweep, the present invention provides rotate entire this side of imaging system Method, this method not only realize horizontal sweep, and relative to move horizontally imaging system more preferably realize and occupied space more It is small.The scanning that vertical direction is realized by rotation reflecting plate rotates the scanning that entire imaging system realizes horizontal direction, two sides To each independent control of scanning, flexibility is high.In addition, being realized by the principle for folding optical path using two reflecting plates As the miniaturization of system, occupied space is reduced.The method of this two-dimensional scanning, first is that being broadened to imaging system large rotation angle Scanning area；Second is that increasing hits to imaging system Small-angle Rotation, and number of samples can be controlled flexibly, so Resolution ratio is improved, reduces the use to radiometer, reduces costs.

In conclusion this patent existing millimeter wave imaging system there are aiming at the problem that, propose a kind of two-dimensional scanning Passive millimeter wave imaging method, has widened horizontal field of view, and can flexile change sample rate, improve resolution ratio.It is applicable in In places such as the biggish airport of the volume of the flow of passengers, railway stations, work efficiency is high, small in size, high resolution.

Summary of the invention

The purpose of the present invention is to propose to a kind of two-dimensional scanning passive millimeter wave imaging system and methods, to solve existing quilt Dynamic the problems such as millimeter wave imaging system visual field is narrow, volume is big, working efficiency is slow, more using radiometer number.

The invention is realized by the following technical scheme: a kind of two-dimensional scanning passive millimeter wave imaging system, including imaging system Unite shell, pivotable reflective plate, ellipsoid reflecting surface, servo-system, fixed reflecting plate, reception and imaging system, acquisition system and Computer, wherein

The imaging system shell for being the pivotable reflective plate wave transparent, and is the pivotable reflective plate, ellipsoid Reflecting surface, fixed reflecting plate and reception and imaging system shading；

The servo-system drives the rotation of imaging system shell for being controlled by the computer；

The pivotable reflective plate reflects the millimeter of personnel to be measured for being controlled adjustment reflection angle by the computer Wave signal is to the ellipsoid reflecting surface；

The ellipsoid reflecting surface, it is anti-to the fixation for reflecting the millimeter-wave signal that the pivotable reflective plate reflects Penetrate plate；

The fixed reflecting plate, for reflect the ellipsoid reflective surface go out millimeter-wave signal to it is described reception at As system；

The reception and imaging system, the millimeter-wave signal reflected for receiving the fixed reflecting plate, and be converted into Voltage signal is sent to the acquisition system；

The acquisition system, the voltage signal issued for receiving and recording the reception with imaging system, is converted into number Word signal is sent to the computer；

The computer, the digital signal sent for receiving the acquisition system, and handling is that image is shown, is also used to Control the servo-system and pivotable reflective plate rotation.

Further, the pivotable reflective plate, ellipsoid reflecting surface, fixed reflecting plate and reception are all installed with imaging system In the imaging system shell, the pivotable reflective plate and fixed reflecting plate are separately mounted to the two of the ellipsoid reflecting surface A focal point.

Further, the imaging system shell is cylindrical container.

Further, the pivotable reflective plate rotates along the vertical direction.

Further, the servo-system rotates in the horizontal direction.

Further, the reception and imaging system are radiometer array.

System is imaged based on a kind of above-mentioned two-dimensional scanning passive millimeter wave in a kind of two-dimensional scanning passive millimeter wave imaging method System, the two-dimensional scanning passive millimeter wave imaging method the following steps are included:

Step 1: computer controls servo-system and rotates horizontally, and drives pivotable reflective sheet reset to initial position；

Step 2: personnel to be measured walk after entering into region to be measured along arc-shaped path, and computer controls servo-system and drives Imaging system shell starts transfer in the horizontal direction；

Step 3: during transfer, computer control pivotable reflective plate adjusts the angle along the vertical direction, to be measured Personnel carry out scanning in column, and generate multiple groups sampled data；

Step 4: judging whether the multiple groups sampled data covers the whole region of personnel to be measured, if so, executing step Five；Otherwise, return step three,

Step 5: computer generalization multiple groups sampled data generates and shows complete scan figure, return step one.

System is imaged based on a kind of above-mentioned two-dimensional scanning passive millimeter wave in a kind of two-dimensional scanning passive millimeter wave imaging method System, the two-dimensional scanning passive millimeter wave imaging method the following steps are included:

Step 1: personnel to be measured enter into after region to be measured stands firm, and computer control servo-system horizontally rotates, and drive can revolve Turn reflecting plate and scan minimum a line region, and generates one group of sampled data；

Step 2: computer controls pivotable reflective plate and adjusts the angle up-regulation, makes the passive millimeter wave of pivotable reflective plate The adjacent lastrow region of receiving side face；

Step 3: computer control servo-system horizontally rotates, and drives pivotable reflective plate to carry out horizontal sweep, and generate Next group of sampled data；

Step 4: computer judges whether can also detect millimeter wave in the next group of sampled data, if: execute step Rapid five；Otherwise, return step two；

Step 5: computer generalization multiple groups sampled data generates and shows complete scan figure.

System is imaged based on a kind of above-mentioned two-dimensional scanning passive millimeter wave in a kind of two-dimensional scanning passive millimeter wave imaging method System, the two-dimensional scanning passive millimeter wave imaging method the following steps are included:

Step 1: personnel to be measured enter into after region to be measured stands firm, and computer control servo-system horizontally rotates, and drive can revolve Turn reflecting plate to scan since most the first from left column, and generates one group of sampled data；

Step 2: computer control servo-system horizontally rotates, and drives the passive millimeter wave receiving side of pivotable reflective plate The adjacent next column region of face；

Step 3: computer control pivotable reflective plate rotates vertically, carries out next column region at column scan, and generate One group of sampled data；

Step 4: computer judge the next group of sampled data whether be region to be measured most it is right one column hits According to if so, executing step 5；Otherwise, return step two；

Step 5: computer generalization multiple groups sampled data generates and shows complete scan figure.

The invention has the following beneficial effects:

(1) horizontal field of view has been widened in the rotation of imaging system, increases scan area, can detect multiple targets, to target Carry out tracing detection.

(2) individually the scanning of controlled level and vertical two direction provides a variety of image procossing methods, improves image Accuracy rate.

(3) when detecting to simple target, rotatable entire imaging system carries out the scanning of horizontal direction, reduces The use number of radiometer, reduces costs.

(4) using the principle for folding optical path, two reflecting plates reduce the volume of imaging system, rotation imaging system without It is to move horizontally imaging system also to further reduce the occupied space of entire detection system.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of two-dimensional scanning passive millimeter wave imaging system of the invention.

Wherein, 1 is region to be measured, and 2 be personnel to be measured；3 be imaging system shell, and 4 be pivotable reflective plate, and 5 be ellipsoid Reflecting surface, 6 be servo-system, and 7 be fixed reflecting plate, and 8 be reception and imaging system, and 9 be acquisition system, and 10 be computer.

Specific embodiment

Technical solution in the embodiment of the present invention that following will be combined with the drawings in the embodiments of the present invention carries out clear, complete Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts Example is applied, shall fall within the protection scope of the present invention.

Shown in referring to Fig.1, the present invention provides an a kind of embodiments of two-dimensional scanning passive millimeter wave imaging system, including Imaging system shell 3, pivotable reflective plate 4, ellipsoid reflecting surface 5, servo-system 6, fixed reflecting plate 7, reception and imaging system 8, acquisition system 9 and computer 10, wherein

Imaging system shell 3, for be 4 wave transparent of pivotable reflective plate, and for pivotable reflective plate 4, ellipsoid reflecting surface 5, Fixed reflecting plate 7 and reception and 8 shading of imaging system；

Servo-system 6 drives imaging system shell 3 to rotate for being controlled by computer 10；

Pivotable reflective plate 4 reflects the millimeter wave letter of personnel 2 to be measured for being controlled adjustment reflection angle by computer 10 Number to ellipsoid reflecting surface 5；

Ellipsoid reflecting surface 5, for reflecting millimeter-wave signal that pivotable reflective plate 4 reflects to fixed reflecting plate 7；

Fixed reflecting plate 7 extremely receives and imaging system 8 for reflecting the millimeter-wave signal that ellipsoid reflecting surface 5 reflects；

It receives with imaging system 8, the millimeter-wave signal reflected for receiving fixed reflecting plate 7, and is converted into voltage letter Number it is sent to acquisition system 9；

Acquisition system 9 is converted into digital signal for receiving and recording the voltage signal of reception and the sending of imaging system 8 It is sent to computer 10；

Computer 10 is that image is shown for receiving the digital signal of the transmission of acquisition system 9, and handling, is also used to control Servo-system 6 and pivotable reflective plate 4 rotate.

Specifically, for solve individual reflection plate surface sweeping horizontal field of view it is narrow, using numerous disadvantages, this hair such as more than radiometer number It is bright to provide a kind of reflecting plate vertical scanning, rotate a kind of two-dimensional scanning passive millimeter wave of entire imaging system horizontal sweep at As system.Shown in referring to Fig.1, passive millimeter wave imaging system of the invention is a cylindrical outer shape, and servo-system 6 drives imaging System shell 3 makes rotating motion, and then the pivotable reflective plate 4 inside imaging system shell 3 is driven to do arc to region 1 to be measured Scanning.In order to match with the mode of arc scan, in the present embodiment, region 1 to be measured is equally limited to arc-shaped and to be measured Region 1 and imaging system shell 3 are concentric, to guarantee that the object to be measured in region 1 to be measured is also to move along arc-shaped, such one Carry out imaging system by the process of rotation progress arc scan just at the process for carrying out horizontal sweep to target, is greatly saved The occupied space of imaging system.

Shown in referring to Fig.1, in the specific embodiment of this part, pivotable reflective plate 4, ellipsoid reflecting surface 5, fixed reflecting plate It 7 and receives and is all installed in imaging system shell 3 with imaging system 8, pivotable reflective plate 4 and fixed reflecting plate 7 are installed respectively In two focal points of ellipsoid reflecting surface 5.

Specifically, the light issued from a focus of ellipsoid passes through according to the characteristic of ellipsoid reflecting surface 5 in geometric optics Another focus can be converged in after ellipsoid reflection, so in the focus close apart from ellipsoid reflecting surface 5 about fixed reflecting plate 7 The radiometer array with certain Rankine-Hugoniot relations is placed at symmetric points, that is, is received with imaging system 8 for receiving.Due to rotatable Reflecting plate 4 and entire imaging system are rotatable, so the focus remote apart from ellipsoid reflecting surface 5 is about pivotable reflective plate 4 symmetric points just pool a region, using this region as test zone 1.After device power-up runs well, personnel to be measured In 2 stations to a certain range immediately ahead of equipment, the millimeter wave radiated at certain point with it is anti-by pivotable reflective plate 4, ellipsoid Face 5 and fixed reflecting plate 7 are penetrated, is received after folding three times and is received with imaging system 8, and the millimeter-wave signal received is converted It send at voltage signal to acquisition system, is recorded as first group of sampled data, then computer 10 controls motor, to individually control Pivotable reflective plate 4 makes pivotable reflective plate 4 turn an angle, and receives have received personnel to be measured with imaging system 8 at this time The millimeter-wave signal at another place in 2 vertical direction is denoted as second group of sampled data.Reflecting plate is successively rotated, it is available entire All data of image.

Shown in referring to Fig.1, in the specific embodiment of this part, imaging system shell 3 is cylindrical container.

Shown in referring to Fig.1, in the specific embodiment of this part, pivotable reflective plate 4 rotates along the vertical direction.

Shown in referring to Fig.1, in the specific embodiment of this part, servo-system 6 rotates in the horizontal direction.

In the specific embodiment of this part, receiving with imaging system 8 is radiometer array.

The invention proposes an a kind of embodiment of two-dimensional scanning passive millimeter wave imaging method, the passive millimeters of two-dimensional scanning Wave imaging method the following steps are included:

Step 1: computer 10 controls servo-system 6 and rotates horizontally, and pivotable reflective plate 4 is driven to be reset to initial position；

Step 2: personnel 2 to be measured walk after entering into region 1 to be measured along arc-shaped path, and computer 10 controls servo-system 6 Imaging system shell 3 is driven to start transfer in the horizontal direction；

Step 3: during transfer, computer 10 controls pivotable reflective plate 4 and adjusts the angle along the vertical direction, with right Personnel 2 to be measured carry out scanning in column, and generate multiple groups sampled data；

Step 4: judging whether multiple groups sampled data covers the whole region of personnel 2 to be measured, if so, executing step 5； Otherwise, return step three,

Step 5: the comprehensive multiple groups sampled data of computer 10 generates and shows complete scan figure, return step one.

Specifically, if personnel to be measured 2 start to can control the rotation of servo-system 6 along circus movement, personnel 2 to be measured is made to begin It is maintained in region 1 to be measured eventually.The mobile target to detect again of personnel 2 to be measured can obtain the institute of one group of whole image again There are data, according to the mobile angular dimension of personnel 2 to be measured, available several groups of data in varying numbers.Finally, by the several of acquisition Group image data carries out data processing, obtains more excellent result and image.

The invention also provides a kind of another embodiment of two-dimensional scanning passive millimeter wave imaging method, two-dimensional scanning is passive Mm-wave imaging method the following steps are included:

Step 1: personnel 2 to be measured enter into after region 1 to be measured stands firm, and computer 10 controls servo-system 6 and horizontally rotates, band Dynamic pivotable reflective plate 4 scans minimum a line region, and generates one group of sampled data；

Step 2: computer 10 controls pivotable reflective plate 4 and adjusts the angle up-regulation, makes the passive milli of pivotable reflective plate 4 The adjacent lastrow region of metric wave receiving side face；

Step 3: computer 10 controls servo-system 6 and horizontally rotates, and pivotable reflective plate 4 is driven to carry out horizontal sweep, and Generate next group of sampled data；

Step 4: computer 10 judges whether can also detect millimeter wave in next group of sampled data, if: execute step Five；Otherwise, return step two；

Step 5: the comprehensive multiple groups sampled data of computer 10 generates and shows complete scan figure.

The invention also provides a kind of another embodiment of two-dimensional scanning passive millimeter wave imaging method, two-dimensional scanning is passive Mm-wave imaging method the following steps are included:

Step 1: personnel 2 to be measured enter into after region 1 to be measured stands firm, and computer 10 controls servo-system 6 and horizontally rotates, band Dynamic pivotable reflective plate 4 is scanned since most the first from left column, and generates one group of sampled data；

Step 2: computer 10 controls servo-system 6 and horizontally rotates, and the passive millimeter wave of pivotable reflective plate 4 is driven to connect Receive the adjacent next column region of side face；

Step 3: computer 10 controls pivotable reflective plate 4 and rotates vertically, carries out next column region at column scan, and Generate one group of sampled data；

Step 4: computer 10 judge next group of sampled data whether be region 1 to be measured most it is right one column sampled data, If so, executing step 5；Otherwise, return step two；

Step 5: the comprehensive multiple groups sampled data of computer 10 generates and shows complete scan figure.

In conclusion being compensated for original The present invention gives a kind of two-dimensional scanning passive millimeter wave imaging system and method Individual reflection plate scanning mode shortcoming；The imaging thinking of a variety of imaging methods is proposed, resolution ratio is improved.