CN112824928B - System and method for testing radar production line - Google Patents
System and method for testing radar production line Download PDFInfo
- Publication number
- CN112824928B CN112824928B CN201911146391.7A CN201911146391A CN112824928B CN 112824928 B CN112824928 B CN 112824928B CN 201911146391 A CN201911146391 A CN 201911146391A CN 112824928 B CN112824928 B CN 112824928B
- Authority
- CN
- China
- Prior art keywords
- radar
- signal
- test
- tested
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 261
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001228 spectrum Methods 0.000 claims abstract description 35
- 238000010183 spectrum analysis Methods 0.000 claims abstract description 28
- 238000013461 design Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 12
- 238000004458 analytical method Methods 0.000 description 9
- 238000011056 performance test Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 230000002269 spontaneous effect Effects 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4052—Means for monitoring or calibrating by simulation of echoes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4008—Means for monitoring or calibrating of parts of a radar system of transmitters
Abstract
The invention provides a radar production line testing system and a method, wherein the system comprises the following steps: testing a camera bellows; the radar to be tested is arranged at one side of the interior of the test camera bellows; the test antenna is arranged at the other side of the inside of the test camera bellows opposite to the radar to be tested and is used for receiving and transmitting test signals sent by the radar to be tested; the directional coupler is connected with the test antenna and is used for generating an RX signal and a TX signal according to a test signal received by the test antenna; an RX delay line connected with the directional coupler for reflecting the RX signal generated by the directional coupler back through the test antenna as a return signal source; the frequency spectrum device is connected with the directional coupler through a TX signal wire and is arranged outside the test camera bellows and used for carrying out frequency spectrum analysis on the TX signal; and the industrial personal computer is used for controlling the working of the radar production line testing system and analyzing the testing data and is respectively connected with the radar to be tested and the frequency spectrum equipment. The near field test of the radar can be realized, the design cost is low, the test efficiency is high, and the test requirement of the radar production line can be met.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to a radar production line testing system and method.
Background
Radar, a transliteration of the english Radar, derives from the acronym radio detection and ranging, meaning "radio detection and ranging", i.e. finding objects by radio and determining their spatial position. Thus, radar is also referred to as "radiolocation". Radar is an electronic device that detects a target using electromagnetic waves. The radar emits electromagnetic waves to irradiate the target and receives echoes thereof, so that information such as the distance, the azimuth and the like from the target to an electromagnetic wave emitting point is obtained. The specific uses and structures of the various radars are not the same but the basic form is consistent, including: a transmitter, a transmitting antenna, a receiver, a receiving antenna, a processing portion, and a display. And auxiliary equipment such as power supply equipment, data recording equipment, anti-interference equipment and the like are also provided. Along with the scientific progress of various fields such as microelectronics, radar technology is continuously developed, and application fields are also continuously expanded.
Before the radar leaves the factory, performance test is required to be carried out on the radar, in the test process, the radar is placed at one end of a darkroom test system, and an antenna is placed at the other end of the darkroom test system, so that the performance test of the radar is realized. In the automobile radar test, the performance test and the radar function test of the radar transmitter are the testing key points. However, the existing test system is used for testing the performance of a radar transmitter and the radar function by dividing the performance test and the radar function test into two independent systems, so that the test time is long, the test equipment is redundant, and the test cost is high.
Disclosure of Invention
The invention aims to provide a radar production line testing system and a method, which effectively solve the technical problems of long testing time, redundancy of testing equipment, high testing cost and the like of the existing radar production line testing system.
The technical scheme provided by the invention is as follows:
a radar production line testing system, comprising:
testing a camera bellows;
the radar to be tested is arranged at one side of the interior of the test camera bellows;
the test antenna is arranged at the other side of the inside of the test camera bellows opposite to the radar to be tested, and is arranged at the same height as the radar to be tested and used for receiving and transmitting test signals sent by the radar to be tested;
the directional coupler is connected with the test antenna and is used for generating an RX signal and a TX signal according to a test signal received by the test antenna;
the RX delay line is connected with the directional coupler and is used for taking an RX signal generated by the directional coupler as a return signal source and reflecting the RX signal back through the test antenna;
the frequency spectrum equipment is connected with the directional coupler through a TX signal wire and is arranged outside the test camera bellows and used for carrying out frequency spectrum analysis on the TX signal; and
And the industrial personal computer is used for controlling the working of the radar production line testing system and analyzing the testing data and is respectively connected with the radar to be tested and the frequency spectrum equipment.
In the technical scheme, the directional coupler is arranged in the radar production line test system, the received test signals are divided into the RX signals and the TX signals, the RX signals are reflected back through the RX delay line, spectrum analysis is carried out on the TX signals through spectrum equipment, near-field test/static simulation test of the radar (24G/77G) can be realized, the operation and the maintenance are convenient, the design cost is low, the test efficiency is high, the TX (transmitting signal) test and the RX (spontaneous self-receiving) test mode of the radar test can be simultaneously met only by configuring one test antenna, the test requirement of the radar production line is met, and the radar production line is not required to be tested through two systems.
Further preferably, the RX delay line includes a shorting tab therein for shorting the RX signal generated by the directional coupler and returning via the test antenna.
Further preferably, the spectrum device comprises a frequency-reducing plate and a spectrometer;
the frequency-reducing plate is connected with the directional coupler through a TX signal wire and is used for frequency-reducing the TX signal generated by the directional coupler to obtain a frequency-reducing signal source;
the frequency spectrograph is connected with the frequency-reducing plate and is used for carrying out frequency spectrum analysis on the frequency-reducing signal source.
In the technical scheme, the frequency of the received TX signal is reduced through the frequency reducing plate, and then the frequency spectrum analysis is directly carried out through the frequency spectrograph, so that the method is simple and convenient.
Further preferably, the radar production line testing system further comprises an upper computer connected with the radar to be tested and the spectrometer respectively;
the radar to be tested receives and analyzes a return signal source and feeds the return signal source back to the upper computer for recording; and the spectrum equipment performs spectrum analysis on the TX signal and feeds back the TX signal to the upper computer for recording.
Further preferably, the radar production line testing system further includes a radar testing device for testing a radar in a fixed band, and the radar testing device includes:
a support base;
the first horizontal sliding rail is arranged on the surface of the supporting base;
the support piece is used for supporting the radar to be tested at a preset height and driving the radar to be tested to horizontally move along a first axial direction in the first horizontal sliding rail, and is connected above the first horizontal sliding rail in a sliding manner;
the vertical rotary table is used for driving the radar to be tested to rotate along the vertical direction and is rotationally connected with the upper end part of the supporting piece;
the clamp is used for clamping the radar to be tested and is fixedly connected with the vertical azimuth turntable; and
And the driving device is used for controlling the actions of the support piece and the vertical rotary table and is respectively and electrically connected with the industrial personal computer, the first horizontal sliding rail and the vertical rotary table.
In the technical scheme, the supporting piece, the first horizontal sliding rail and the vertical rotary table are arranged in the radar testing device, and the driving device is configured, so that when the radar is tested, the correction value of the inter-position relation (including the relative position between the radar and the testing antenna, the included angle between the radar and the testing antenna and other parameters) between the radar and the testing antenna is obtained according to the position of the radar, the action of the supporting piece and the vertical rotary table is further controlled, the included angle between the radar and the testing antenna is prevented, and the measurement accuracy is improved.
Still preferably, the radar testing device further includes a second horizontal sliding rail, the first horizontal sliding rail is slidably disposed above the second horizontal sliding rail, the supporting member is slidably connected above the first horizontal sliding rail, the first axial direction and the second axial direction are perpendicular to each other, and the supporting member is connected with the driving device;
and/or the support piece comprises a vertical sliding rail, the vertical sliding rail is arranged at the upper end part of the support piece, and the vertical rotary table is arranged at one side of the vertical sliding rail and is in sliding connection with the support piece;
and/or, the radar testing device further comprises a horizontal azimuth turntable for driving the radar to be tested to rotate along the horizontal direction, the horizontal azimuth turntable is rotationally arranged on the surface of the supporting base, the first horizontal sliding rail is arranged on the surface of the horizontal azimuth turntable, and the horizontal azimuth turntable is electrically connected with the driving device.
In the technical scheme, the radar testing device is provided with the first horizontal sliding rail and the vertical rotary table, and is also provided with the second horizontal sliding rail, so that the position of the radar to be tested is accurately controlled, and the accuracy of the radar production line testing system is further improved. In addition, the vertical sliding rail is arranged on the supporting piece so as to accurately control the upper and lower positions of the radar to be tested, and the accuracy of the radar production line testing system is further improved. And moreover, a horizontal azimuth turntable is arranged in the radar test device, the horizontal azimuth of the radar to be tested is further controlled, the application of the radar test device is expanded, the radar is assisted to perform pitch angle performance test, meanwhile, other performances of the radar can be assisted to test, and the accuracy and the comprehensiveness of the radar test are improved.
The invention also provides a radar production line testing method which is applied to the radar production line testing system and comprises the following steps:
the radar to be tested emits a test signal;
the test antenna receives the test signal;
a directional coupler generates an RX signal and a TX signal according to the test signal;
the spectrum device receives the TX signal through a TX signal line and performs spectrum analysis on the TX signal;
an RX delay line takes the RX signal as a return signal source and reflects the RX signal back through a test antenna;
the radar to be tested receives and analyzes the returned return signal source.
Further preferably, the spectrum device receives the TX signal via a TX signal line and performs spectrum analysis on the TX signal, and includes:
the frequency-reducing board frequency-reduces the TX signal to obtain a frequency-reducing signal source;
and the frequency spectrograph performs frequency spectrum analysis on the frequency-reduced signal source.
Further preferably, before the radar to be tested emits the test signal, the method further comprises:
the radar testing device rotates the pitch angle of the radar to be tested;
and the radar testing device automatically adjusts the relative position relation between the radar to be tested and the test antenna according to the rotating pitch angle of the radar to be tested.
Further preferably, the spectrum device further includes a step of feeding back the upper computer for recording after receiving the TX signal through the TX signal line and performing spectrum analysis on the TX signal; and/or the number of the groups of groups,
and after the radar to be tested receives and analyzes the returned return signal source, the method further comprises the step of feeding back the upper computer for recording.
In the technical scheme, the received test signal is divided into the RX signal and the TX signal by the directional coupler, the RX signal is reflected back by the RX delay line, the TX signal is subjected to spectrum analysis by spectrum equipment, the near-field test/static simulation test of the radar (24G/77G) can be realized, the operation and the maintenance are convenient, the design cost is low, the test efficiency is high, the TX test and the RX test mode of the radar test can be simultaneously satisfied, the test requirement of the radar production line is satisfied, and the radar production line is not required to be tested by two systems.
Drawings
The above features, technical features, advantages and implementation thereof will be further described in the following detailed description of the preferred embodiments with reference to the accompanying drawings in a clearly understandable manner.
FIG. 1 is a schematic diagram of a system for testing a radar production line according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic diagram of a directional coupler in an embodiment of a radar production line testing system according to the present invention;
FIG. 3 is a schematic diagram of an embodiment of a radar testing apparatus according to the present invention;
FIG. 4 is a schematic diagram illustrating a radar test device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram showing the calculation of the compensation angle in the Y-axis direction according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of another embodiment of a radar testing apparatus according to the present invention;
FIG. 7 is a flowchart of a method for testing a radar production line according to an embodiment of the present invention.
Reference numerals illustrate:
1-test camera bellows, 2-radar to be tested, 3-test antenna, 4-directional coupler, 5-RX delay line, 6-TX signal line, 7-frequency spectrum equipment, 8-industrial computer, 9-short circuit piece, 10-support base, 11-first horizontal slide rail, 12-support piece, 13-vertical orientation revolving stage, 14-anchor clamps, 15-second horizontal slide rail, 16-vertical slide rail, 17-horizontal orientation revolving stage.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is evident that the drawings in the following description are only some embodiments of the present invention, from which other drawings and other embodiments can be obtained by those skilled in the art without inventive effort.
In one embodiment of the present invention, a radar production line testing system, as shown in fig. 1 and 2, includes: a test camera bellows 1; the radar to be tested 2 is arranged at one side in the test camera bellows 1; the test antenna 3 is arranged at the other side of the inside of the test camera bellows 1 opposite to the radar 2 to be tested, and the test antenna 3 and the radar 2 to be tested are arranged at the same height and are used for receiving and transmitting test signals sent by the radar 2 to be tested; a directional coupler 4 connected to the test antenna 3 for generating an RX signal and a TX signal from the test signal received by the test antenna 3; an RX delay line 5 connected to the directional coupler 4 for reflecting the RX signal generated by the directional coupler 4 back through the test antenna 3 as a return signal source; the frequency spectrum device 7 is connected with the directional coupler 4 through a TX signal wire 6 and is arranged outside the test camera bellows 1 and is used for carrying out frequency spectrum analysis on the TX signal; and the industrial personal computer 8 is used for controlling the operation of the radar production line testing system and analyzing the testing data, and the industrial personal computer 8 is respectively connected with the radar 2 to be tested and the frequency spectrum equipment 7.
In the embodiment, a directional coupler 4 connected with a test antenna 3 is arranged in a radar production line test system, a test signal received by the test antenna 3 is divided into an RX signal and a TX signal, wherein the RX signal is returned in a short circuit way through an RX delay line 5, and a return signal source received by a radar 2 to be tested immediately analyzes the return signal source, including analysis of the angle of the return signal, RCS (radar cross section area) and the like; the TX signal enters the frequency spectrum device 7 after passing through the TX signal wire 6, and then the frequency spectrum device 7 carries out frequency spectrum analysis on the TX signal, so that the near-field test of the radar is realized, the system cost is reduced, and the test efficiency is improved. In the TX test mode, the industrial personal computer is connected with spectrum equipment, receives analysis data of the spectrum equipment and further analyzes and displays the analysis data; in the RX test mode, the industrial personal computer is connected with the radar to be tested, receives analysis data of the radar to be tested on the return signal source, and further analyzes and displays the analysis data. According to the test process, the radar production line test system is provided with one test antenna 3, namely, the performance and the radar function of the radar transmitter are tested at the same time, two sets of systems are not required to be used for testing, and the test time is saved.
The test antenna 3 is a 24G antenna or a 77G antenna, and the antenna can be replaced according to the requirement in the test process. The RX delay line 5 includes a shorting tab 9 for shorting the RX signal generated by the directional coupler 4 and returning via the test antenna 3, i.e. the RX signal is returned via the test antenna 3 from the two paths of signals split by the directional coupler 4.
The frequency spectrum device 7 comprises a frequency-reducing plate and a frequency spectrograph, wherein the frequency-reducing plate is connected with the directional coupler 4 through a TX signal wire 6 and is used for frequency-reducing a TX signal generated by the directional coupler 4 to obtain a frequency-reducing signal source; the frequency spectrograph is connected with the frequency-reducing board and is used for carrying out frequency spectrum analysis on the frequency-reducing signal source. In the process, the performance of the radar transmitter is tested according to the analysis of the down-conversion signal by the spectrometer. The type of the down-conversion board is not particularly limited, and any down-conversion signal obtained by down-conversion is included in the embodiment as long as it can satisfy the performance of the spectrometer, for example, the down-conversion board down-converts the energy of the 24G antenna of 20dB (decibel) to within 2.5G; for a 77G antenna energy of 30dB, the down-conversion board down-converts it to within 2.5G.
In other embodiments, the radar production line testing system further comprises an upper computer connected with the radar to be tested and the spectrometer respectively. Thus, the radar to be tested receives the return signal source, analyzes the return signal source and feeds back the return signal source to the upper computer for recording; and the spectrometer performs spectrum analysis on the TX signal and feeds back to the upper computer for recording. In addition, the radar production line testing system also comprises darkroom wave absorbing materials which are attached to the four walls of the testing darkroom and used for absorbing clutter, a display screen which is used for displaying analysis results of received return signal sources of the radar to be tested, a power adapter which is connected with the radio frequency equipment and the like.
The embodiment is obtained by modifying the above embodiment, and in this embodiment, the radar production line testing system includes: a test camera bellows 1; the radar 2 to be tested is arranged on one side in the test camera bellows 1 through a radar testing device; the test antenna 3 is arranged at the other side of the inside of the test camera bellows 1 opposite to the radar 2 to be tested, and the test antenna 3 and the radar 2 to be tested are arranged at the same height and are used for receiving and transmitting test signals sent by the radar 2 to be tested; a directional coupler 4 connected to the test antenna 3 for generating an RX signal and a TX signal from the test signal received by the test antenna 3; an RX delay line 5 connected to the directional coupler 4 for reflecting the RX signal generated by the directional coupler 4 back through the test antenna 3 as a return signal source; the frequency spectrum device 7 is connected with the directional coupler 4 through a TX signal wire 6 and is arranged outside the test camera bellows 1 and is used for carrying out frequency spectrum analysis on the TX signal; and an industrial personal computer 8 for controlling the operation of the radar production line testing system.
Specifically, as shown in fig. 3, the radar test device includes: a support base 10; a first horizontal slide rail 11 provided on the surface of the support base 10; the support piece 12 is used for supporting the radar 2 to be tested at a preset height and driving the radar to be tested to horizontally move along the first axial direction in the first horizontal sliding rail, and the support piece 12 is connected above the first horizontal sliding rail in a sliding manner; a vertical direction turntable 13 for driving the radar 2 to be tested to rotate in a vertical direction, the turntable being rotatably connected to an upper end portion of the support 12; the clamp 14 for clamping the radar 2 to be tested is fixedly connected with the vertical rotary table 13; and the driving device is used for controlling the actions of the first horizontal slide rail 11 and the vertical rotary table 13, and is respectively and electrically connected with the industrial personal computer 8, the first horizontal slide rail 11 and the vertical rotary table 13.
In this embodiment, the industrial personal computer drives the support 12 and the vertically oriented turntable 13 connected thereto to act by the driving device to adjust the radar 2 to be tested to a proper position. It should be understood that, in the radar production line testing system, the positions of the radar to be tested and the radio frequency rear end 7 (the testing antenna) which are oppositely arranged are relatively fixed, if the radar is to be subjected to pitch angle performance test, after the vertical direction turntable 13 drives the radar to be tested to rotate a certain angle, a certain included angle is formed between the radar to be tested and the radio frequency rear end 7, so that the first horizontal sliding rail 11 and the supporting piece 12 matched with the first horizontal sliding rail 11 are arranged in the radar testing device, and the radar 2 to be tested is driven to move along the connecting line direction (the horizontal Y-axis direction) of the radar and the radio frequency rear end 7 by sliding the supporting piece 12 in the first horizontal sliding rail 11, so that concentricity of the radar and the radio frequency rear end 7 is ensured, and no angle error can be caused.
Specifically, the position where the driving device is provided is not particularly limited, and it may be placed inside the support base 10 or the like. The rotation range of the vertical direction turntable 13 is-10 ° to 10 °, the rotation accuracy is set according to the actual requirement, for example, 0.1 °, etc., and in other embodiments, the rotation range may be defined according to the actual requirement. The vertical rotary table 13 comprises a fixing part fixed at the upper end of the supporting member 12 and a rotating part rotationally connected with the fixing part, the clamp 14 is fixed at the rotating part to clamp the radar 2 to be tested, the fixing part and the rotating part are connected through a rotating shaft, and the driving device drives the radar 2 to be tested to rotate in the vertical direction by controlling the rotating shaft to rotate. Note that, here, the vertical direction is a direction perpendicular to the support base 10, and the rotation of the radar 2 to be tested by the vertical direction turntable is specifically expressed as pitching rotation with reference to the horizontal direction of the radar 2 to be tested toward the test antenna 3.
Any conventional method may be used to realize the sliding of the support member in the first horizontal rail, for example, a sliding rail is disposed in the first horizontal rail, and a matching pulley is disposed at the bottom of the support member 12 to facilitate the sliding of the support member in the first horizontal rail. The sliding track may be provided in a slot (the slot size matches the slidable range of the support member) in the first horizontal sliding rail, or may be provided on the surface of the first horizontal sliding rail, which is not limited herein. In addition, the moving range of the support member in the first horizontal slide rail 11 is defined according to the actual situation by referring to parameters such as the distance between the radar to be tested and the radio frequency rear end, the rotation angle of the vertical direction turntable 13, etc., for example, in an example, the distance between the radar to be tested and the radio frequency rear end is 2000mm (millimeters), and the rotation range of the vertical direction turntable 13 is-10 ° to 10 °, then the moving range of the support member 12 in the first horizontal slide rail 11 is defined as-200 to 200mm (taking the center of the slide rail as the origin). And before the test, the association relationship between the rotation angle of the vertical azimuth turntable 13 and the sliding distance of the first horizontal sliding rail 11 is prestored according to parameters such as the distance between the radar to be tested and the radio frequency rear end, the moving range of the first horizontal sliding rail 11 and the like. Therefore, during testing, the driving device automatically controls the movement of the supporting piece 12 according to the rotating angle of the vertical rotary table 13, and accurately controls the position of the radar to be tested, so that an included angle between the radar to be tested and the rear end of the radio frequency is avoided.
In an example, the state diagram of the radar testing apparatus is shown in fig. 4 (the solid line is the initial state and the dotted line is the moving state), in the radar production line testing system, after the vertical direction turntable 13 drives the radar to be tested 2 to rotate upwards by an angle θ, the driving apparatus calculates the values of the compensation distances L and D according to the formula tan θ=d/L, where L is the distance between the radar to be tested 2 and the test antenna 3, and D is the displacement of one side of the radar to be tested 2 in the vertical direction (the distance between the radar to be tested and the horizontal line after pitching rotation). Assuming that in the vertical direction, the side of the radar 2 to be tested is directed upward in the vertical directionThe maximum value of the relative displacement Δd of (a) is 50mm, the movable distance Δl of the support 12 in the first horizontal rail 11 (the moving direction is the Y-axis direction) is 200mm, the distance L between the radar 2 to be tested and the test antenna 3 is 2000mm, and the maximum compensation angle is tan Δθ 1 =Δd/Δl, Δθ can be obtained 1 Approximately 7 °; as shown in FIG. 5, the maximum compensation angle in the Y-axis direction is tan Δθ 2 ＝tanθ 1 -tanθ 2 =tan (50/2000) -tan (50/2400), Δθ can be obtained 2 Approximately 0.3 deg.. Namely, in the radar production line testing system, the automatic compensation of the radar to be tested within 7 degrees of the pitch angle of the radar to be tested and within 0.3 degrees of the Y-axis direction can be realized.
In another embodiment, the radar testing apparatus includes a second horizontal rail 15 in addition to the support base 10, the first horizontal rail 11, the support member 12, the vertical positioning table 13, the fixture 14 and the driving apparatus, where the first horizontal rail 11 is slidably disposed above the second horizontal rail 15, the support member 12 is slidably connected above the first horizontal rail 11, and the first axis and the second axis are perpendicular to each other (the first horizontal rail and the second horizontal rail are perpendicular to each other), and the first horizontal rail is connected with the driving apparatus.
In this embodiment, the radar testing device is provided with a second horizontal rail 15 in addition to the first horizontal rail 11, and the second horizontal rail 15 is slidably disposed below the first horizontal rail 11, and drives the radar to be tested to move horizontally in the first horizontal rail 11 towards the first axial direction through the supporting member 12, and drives the radar to be tested to move horizontally in the second horizontal rail 15 towards the second axial direction through the first horizontal rail 11, and the second axial direction is along the X-axis direction assuming that the first axial direction is along the Y-axis direction. In the performance test process of the radar to be tested, the positions of the radar to be tested in two axial directions are adjusted through the supporting piece 12 and the first horizontal sliding rail 11, so that the positions of the radar to be tested are regulated and controlled more accurately. Similar to the moving range of the support 12 in the first horizontal sliding rail 11, the moving range of the first horizontal sliding rail 11 in the second horizontal sliding rail 15 is also limited according to parameters such as the distance between the radar to be tested and the rf rear end 7, the rotation angle of the vertical turntable 13, and the like in practical application, for example, in an example, the distance between the radar to be tested and the rf rear end 7 is 2000mm, the rotation range of the vertical turntable 13 is-10 ° to 10 °, the moving range of the support 12 in the first horizontal sliding rail 11 is-200 to 200mm, and then the moving range of the first horizontal sliding rail 11 in the second horizontal sliding rail 15 is-200 to 200mm. In addition, any conventional method may be used to realize the sliding of the first horizontal sliding rail 11 in the second horizontal sliding rail 15, such as setting a sliding rail in the second horizontal sliding rail 15, setting a matching pulley at the bottom of the first horizontal sliding rail 11, and the like, which is not limited herein. The sliding track may be grooved (the size of the groove matches the slidable range of the first horizontal sliding track) inside the second horizontal sliding track, or may be disposed on the surface of the second horizontal sliding track, which is not limited herein.
In another embodiment, the support 12 includes a vertical sliding rail that drives the radar 2 to be tested to move along a vertical direction, the vertical sliding rail is disposed at an upper end of the support 12, and the vertical positioning turntable 13 is slidably connected with the support 12 through the vertical sliding rail.
In this embodiment, in order to adjust the height of the radar 2 to be tested in the vertical direction, a vertical slide rail 16 is provided on the support 12 above the first horizontal slide rail 11, specifically, the length of the vertical slide rail 16 is set according to the moving range of the radar 2 to be tested in the vertical direction, so that the driving device controls the vertical direction turntable 13 to slide along the vertical slide rail according to the requirement to adjust the height of the radar 2 to be tested so as to be on the same horizontal line with the test antenna 3. In the radar testing device, the position of the radar 2 to be tested is precisely controlled through the vertical track and the supporting piece 12, the first horizontal sliding rail 11 and the second horizontal sliding rail, so that the accuracy of a radar production line testing system is further improved. The movement range of the vertical sliding rail is limited according to requirements, such as-25 mm in an example.
In another embodiment, as shown in fig. 6, the radar testing apparatus includes a support base 10, a first horizontal sliding rail 11, a support member 12, a vertical azimuth turntable 13, a fixture 14, and a driving device, and further includes a horizontal azimuth turntable 17 for driving the radar 2 to be tested to rotate along a horizontal direction, wherein the horizontal azimuth turntable 17 is rotatably disposed on a surface of the support base 10, the first horizontal sliding rail is slidably disposed on a surface of the horizontal azimuth turntable 17, and the horizontal azimuth turntable 17 is electrically connected with the driving device. In other embodiments, the radar testing device includes a support base 10, a first horizontal sliding rail 11, a second horizontal sliding rail 15, a support member 12, a vertical direction turntable 13, a fixture 14, and a driving device, and further includes a horizontal direction turntable 17 for driving the radar 2 to be tested to rotate along a horizontal direction, the second horizontal sliding rail is disposed on a surface of the horizontal direction turntable, the first horizontal sliding rail is slidably disposed above the second horizontal sliding rail, and the support member is slidably disposed above the first horizontal sliding rail.
In this embodiment, in order to further adjust the range of the radar 2 to be tested in the horizontal direction, a horizontal azimuth table 17 is provided above the support base 10, the radar 2 to be tested is rotated to a desired position, specifically, the rotation range of the horizontal azimuth table 17 is-180 ° to 180 °, and the accuracy can be set according to the actual situation, for example, set to 0.1 °. The arrangement of the horizontal azimuth rotary table 17 not only improves the accuracy of a radar production line testing system, but also is beneficial to the omnibearing test of the performance of the radar 2 to be tested, and helps to test the performance of the radar 2 to be tested at all angles.
In the pitch angle performance test process of the radar to be tested, after the vertical azimuth turntable drives the radar to be tested to rotate for a certain angle, the driving device further controls the supporting piece, the first horizontal sliding rail/the second horizontal sliding rail and the horizontal azimuth turntable to act according to the angle and the pre-stored association relation so as to adjust the position of the radar to be tested, and the test purpose is achieved.
The invention also provides a radar production line testing method which is applied to the radar production line testing system, as shown in fig. 7, and comprises the following steps: s10, a radar emission test signal to be tested; s20, receiving a test signal by a test antenna; s30, the directional coupler generates an RX signal and a TX signal according to the test signal; s40, the frequency spectrum device receives a TX signal through a TX signal line and performs frequency spectrum analysis on the TX signal; s50RX delay line takes RX signal as return signal source and reflects back through test antenna; s60, the radar to be tested receives and analyzes the returned return signal source.
In the embodiment, a directional coupler connected with a test antenna is arranged to divide a test signal received by the test antenna into an RX signal and a TX signal, wherein the RX signal returns through an RX delay line in a short circuit mode, and a return signal source received by a radar to be tested immediately analyzes the return signal source, including the angle of the return signal, RCS (radar cross section area) and the like; the TX signal enters the frequency spectrum device after passing through the TX signal line, and then the frequency spectrum device carries out frequency spectrum analysis on the TX signal, so that near-field test of the radar is realized, the system cost is reduced, and the test efficiency is improved. In addition, according to the test process, the radar production line test system is provided with one test antenna, namely, the performance and the radar function of the radar transmitter are tested at the same time, two sets of systems are not required to be used for testing, and the test time is saved. It is noted that there is no order in which the spectral device will analyze the TX signal and the RX delay line will short the RX signal back. In addition, before the radar is tested, the method also comprises the step of selecting a test mode, and when the TX test mode is selected, the transmission performance of the radar is tested; when an RX test module is selected, testing the spontaneous self-receiving performance of the radar; when the TX test mode and the RX test module are selected, the transmission performance and the spontaneous self-reception performance are tested simultaneously.
The test antenna is a 24G antenna or a 77G antenna, and the antenna is replaced according to the requirement in the test process. The RX delay line comprises a short-circuit chip for shorting the RX signal generated by the directional coupler 4 and returning the signal via the test antenna, i.e. the original path of the RX signal in the two paths of signals split by the directional coupler returns via the test antenna.
The frequency spectrum equipment comprises a frequency-reducing plate and a frequency spectrograph, wherein the frequency-reducing plate is connected with the directional coupler through a TX signal wire and is used for frequency-reducing a TX signal generated by the directional coupler to obtain a frequency-reducing signal source; the frequency spectrograph is connected with the frequency-reducing board and is used for carrying out frequency spectrum analysis on the frequency-reducing signal source. In the process, the performance of the radar transmitter is tested according to the analysis of the down-conversion signal by the spectrometer. The type of the down-conversion board is not particularly limited, and any down-conversion signal obtained by down-conversion is included in the embodiment as long as it can satisfy the performance of the spectrometer, for example, the down-conversion board down-converts the energy of the 24G antenna of 20dB (decibel) to within 2.5G; for a 77G antenna energy of 30dB, the down-conversion board down-converts it to within 2.5G.
In other embodiments, after step S60, the method further includes a step of receiving and analyzing the return signal source by the radar to be tested, and then feeding back to the upper computer for recording, and a step of feeding back to the upper computer for recording after the spectrum device performs spectrum analysis on the TX signal. In addition, the radar production line testing system also comprises darkroom wave absorbing materials which are attached to the four walls of the testing darkroom and used for absorbing clutter, a display screen which is used for displaying analysis results of received return signal sources of the radar to be tested, a power adapter which is connected with the radio frequency equipment and the like.
The embodiment is obtained by modifying the above embodiment, and in this embodiment, the method for testing a radar production line includes: s01, the radar testing device rotates a pitch angle of a radar to be tested; s02, the radar testing device automatically adjusts the relative position relation between the radar to be tested and the test antenna according to the rotating pitch angle of the radar to be tested; s10, a radar emission test signal to be tested; s20, receiving a test signal by a test antenna; s30, the directional coupler generates an RX signal and a TX signal according to the test signal; s40, the frequency spectrum device receives a TX signal through a TX signal line and performs frequency spectrum analysis on the TX signal; s50RX delay line takes RX signal as return signal source and reflects back through test antenna; s60, the radar to be tested receives and analyzes the returned return signal source.
In this embodiment, referring to the structure of the radar test device, before testing the performance of the radar to be tested, the position of the radar to be tested is compensated according to the angle at which the vertical azimuth turntable in the radar test device rotates so as to be concentric with the radar to be tested. And then, the industrial personal computer controls the radar to be tested to send a test signal, and the test antenna is separated into an RX signal and a TX signal through the directional coupler after receiving the test signal. And then the TX signal enters the frequency spectrum equipment through a TX signal wire to carry out frequency spectrum analysis; RX signals are short-circuited and returned through the RX delay line and the test antenna, so that the radar to be tested receives and analyzes the returned signal source, the near-field test of the radar (24G/77G) is realized, the design cost is low, the test efficiency is high, and the test requirement of the radar production line can be met.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely illustrative of the preferred embodiments of this invention, and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the invention, and such variations and modifications are to be regarded as being within the scope of the invention.
Claims (6)
1. A radar production line testing system, comprising:
testing a camera bellows;
the radar to be tested is arranged at one side of the interior of the test camera bellows;
the test antenna is arranged at the other side of the inside of the test camera bellows opposite to the radar to be tested, and is arranged at the same height as the radar to be tested and used for receiving and transmitting test signals sent by the radar to be tested;
the directional coupler is connected with the test antenna and is used for generating an RX signal and a TX signal according to a test signal received by the test antenna;
the RX delay line is connected with the directional coupler and is used for taking an RX signal generated by the directional coupler as a return signal source and reflecting the RX signal back through the test antenna; the radar to be tested receives the returned return signal source and then analyzes the return signal source;
the frequency spectrum equipment is connected with the directional coupler through a TX signal wire and is arranged outside the test camera bellows and used for carrying out frequency spectrum analysis on the TX signal; and
The industrial personal computer is used for controlling the operation of the radar production line testing system and analyzing the testing data and is respectively connected with the radar to be tested and the frequency spectrum equipment;
the RX delay line comprises a short-circuit piece which is used for shorting RX signals generated by the directional coupler and returning the RX signals through the test antenna;
the frequency spectrum equipment comprises a frequency reducing plate and a frequency spectrograph;
the frequency-reducing plate is connected with the directional coupler through a TX signal wire and is used for frequency-reducing the TX signal generated by the directional coupler to obtain a frequency-reducing signal source;
the frequency spectrograph is connected with the frequency-reducing plate and is used for carrying out frequency spectrum analysis on the frequency-reducing signal source;
the radar production line testing system also comprises an upper computer which is respectively connected with the radar to be tested and the spectrometer;
the radar to be tested receives and analyzes a return signal source and feeds the return signal source back to the upper computer for recording; the spectrum equipment performs spectrum analysis on the TX signal and feeds back the TX signal to the upper computer for recording;
the radar production line test system further comprises a radar test device for testing radar in a fixed belt, wherein the radar test device comprises:
a support base;
the first horizontal sliding rail is arranged on the surface of the supporting base;
the support piece is used for supporting the radar to be tested at a preset height and driving the radar to be tested to horizontally move along a first axial direction in the first horizontal sliding rail, and is connected above the first horizontal sliding rail in a sliding manner;
the vertical rotary table is used for driving the radar to be tested to rotate along the vertical direction and is rotationally connected with the upper end part of the supporting piece;
the clamp is used for clamping the radar to be tested and is fixedly connected with the vertical azimuth turntable; and
And the driving device is used for controlling the actions of the support piece and the vertical rotary table and is respectively and electrically connected with the industrial personal computer, the first horizontal sliding rail and the vertical rotary table.
2. The radar production line testing system of claim 1, wherein,
the radar testing device further comprises a second horizontal sliding rail, the first horizontal sliding rail is arranged above the second horizontal sliding rail in a sliding mode, the supporting piece is connected above the first horizontal sliding rail in a sliding mode, the first axial direction and the second axial direction are perpendicular to each other, and the first horizontal sliding rail is connected with the driving device;
and/or the support piece comprises a vertical sliding rail, the vertical sliding rail is arranged at the upper end part of the support piece, and the vertical rotary table is arranged at one side of the vertical sliding rail and is in sliding connection with the support piece;
and/or, the radar testing device further comprises a horizontal azimuth turntable for driving the radar to be tested to rotate along the horizontal direction, the horizontal azimuth turntable is rotationally arranged on the surface of the supporting base, the first horizontal sliding rail is arranged on the surface of the horizontal azimuth turntable, and the horizontal azimuth turntable is electrically connected with the driving device.
3. A radar production line testing method, which is applied to the radar production line testing system according to claim 1 or 2, and comprises the following steps:
the radar to be tested emits a test signal;
the test antenna receives the test signal;
a directional coupler generates an RX signal and a TX signal according to the test signal;
the spectrum device receives the TX signal through a TX signal line and performs spectrum analysis on the TX signal;
an RX delay line takes the RX signal as a return signal source and reflects the RX signal back through a test antenna;
the radar to be tested receives and analyzes the returned return signal source.
4. A radar production line testing method according to claim 3, wherein the spectrum device receives and spectrum-analyzes the TX signal via a TX signal line, and comprises:
the frequency-reducing board frequency-reduces the TX signal to obtain a frequency-reducing signal source;
and the frequency spectrograph performs frequency spectrum analysis on the frequency-reduced signal source.
5. The radar production line testing method according to claim 3 or 4, wherein before the radar to be tested emits the test signal, further comprising:
the radar testing device rotates the pitch angle of the radar to be tested;
and the radar testing device automatically adjusts the relative position relation between the radar to be tested and the test antenna according to the rotating pitch angle of the radar to be tested.
6. The method for testing the radar production line according to claim 3 or 4, wherein,
the frequency spectrum equipment receives the TX signal through a TX signal wire and performs frequency spectrum analysis on the TX signal, and then the frequency spectrum equipment further comprises a step of feeding back an upper computer for recording; and/or the number of the groups of groups,
and after the radar to be tested receives and analyzes the returned return signal source, the method further comprises the step of feeding back the upper computer for recording.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911146391.7A CN112824928B (en) | 2019-11-21 | 2019-11-21 | System and method for testing radar production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911146391.7A CN112824928B (en) | 2019-11-21 | 2019-11-21 | System and method for testing radar production line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112824928A CN112824928A (en) | 2021-05-21 |
| CN112824928B true CN112824928B (en) | 2024-02-27 |
Family
ID=75907139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911146391.7A Active CN112824928B (en) | 2019-11-21 | 2019-11-21 | System and method for testing radar production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112824928B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267778A (en) * | 2021-06-18 | 2021-08-17 | 珠海上富电技股份有限公司 | Vehicle-mounted millimeter wave radar factory detection device and method |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6138580A (en) * | 1984-07-31 | 1986-02-24 | Natl Space Dev Agency Japan<Nasda> | System testing method of synthetic aperture radar |
| WO1999008129A1 (en) * | 1997-08-05 | 1999-02-18 | Anritsu Company | Radar test system for collision avoidance automotive radar |
| US6067042A (en) * | 1997-07-29 | 2000-05-23 | Samsung Electronics Co., Ltd. | Test beacon for radar system |
| JP2005241602A (en) * | 2004-02-27 | 2005-09-08 | Mitsubishi Electric Corp | Radar testing method and device |
| DE102007002370A1 (en) * | 2007-01-17 | 2008-07-24 | Valeo Schalter Und Sensoren Gmbh | Radar testing device, comprises antennas for receiving and transmitting radar signals, delay lines, amplifier and wave guide circulator, where input and output of amplifier are connected to delay lines |
| CN102307070A (en) * | 2011-05-26 | 2012-01-04 | 中国科学院上海微系统与信息技术研究所 | Automatic testing system and testing method for non-contact transmission characteristics of millimeter waveband |
| KR101295756B1 (en) * | 2013-04-18 | 2013-08-12 | 주식회사 휴미디어 | A system of analyzing radar using digital spectrum and a method thereof |
| CN103901411A (en) * | 2014-03-28 | 2014-07-02 | 长城汽车股份有限公司 | Radar test device and automotive radar pitch angle test method |
| CN106970364A (en) * | 2017-05-11 | 2017-07-21 | 合肥工业大学 | A kind of trailer-mounted radar is in ring real-time simulation test system and its method |
| CN107192986A (en) * | 2017-07-05 | 2017-09-22 | 上海为彪汽配制造有限公司 | Universal adjustment support, digital display millimetre-wave radar adjustment system and its adjusting method |
| CN107223211A (en) * | 2015-02-19 | 2017-09-29 | 泰拉丁公司 | Pseudo range measuring technology for radar application |
| CN206531954U (en) * | 2017-03-01 | 2017-09-29 | 苏州凌创瑞地测控技术有限公司 | Car radar test device |
| CN107561515A (en) * | 2017-08-17 | 2018-01-09 | 北京润科通用技术有限公司 | A kind of automobile-used millimetre-wave radar detectivity test system |
| CN207336743U (en) * | 2017-11-01 | 2018-05-08 | 河北工业大学 | A kind of two angle car radar target simulation systems |
| CN207924128U (en) * | 2017-12-01 | 2018-09-28 | 北京润科通用技术有限公司 | A kind of radar test calibration system |
| CN109975777A (en) * | 2019-04-25 | 2019-07-05 | 上海为彪汽配制造有限公司 | The adjusting bracket of radar |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6700531B2 (en) * | 2002-07-17 | 2004-03-02 | Anritsu Company | Integrated multiple-up/down conversion radar test system |
-
2019
- 2019-11-21 CN CN201911146391.7A patent/CN112824928B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6138580A (en) * | 1984-07-31 | 1986-02-24 | Natl Space Dev Agency Japan<Nasda> | System testing method of synthetic aperture radar |
| US6067042A (en) * | 1997-07-29 | 2000-05-23 | Samsung Electronics Co., Ltd. | Test beacon for radar system |
| WO1999008129A1 (en) * | 1997-08-05 | 1999-02-18 | Anritsu Company | Radar test system for collision avoidance automotive radar |
| JP2005241602A (en) * | 2004-02-27 | 2005-09-08 | Mitsubishi Electric Corp | Radar testing method and device |
| DE102007002370A1 (en) * | 2007-01-17 | 2008-07-24 | Valeo Schalter Und Sensoren Gmbh | Radar testing device, comprises antennas for receiving and transmitting radar signals, delay lines, amplifier and wave guide circulator, where input and output of amplifier are connected to delay lines |
| CN102307070A (en) * | 2011-05-26 | 2012-01-04 | 中国科学院上海微系统与信息技术研究所 | Automatic testing system and testing method for non-contact transmission characteristics of millimeter waveband |
| KR101295756B1 (en) * | 2013-04-18 | 2013-08-12 | 주식회사 휴미디어 | A system of analyzing radar using digital spectrum and a method thereof |
| CN103901411A (en) * | 2014-03-28 | 2014-07-02 | 长城汽车股份有限公司 | Radar test device and automotive radar pitch angle test method |
| CN107223211A (en) * | 2015-02-19 | 2017-09-29 | 泰拉丁公司 | Pseudo range measuring technology for radar application |
| CN206531954U (en) * | 2017-03-01 | 2017-09-29 | 苏州凌创瑞地测控技术有限公司 | Car radar test device |
| CN106970364A (en) * | 2017-05-11 | 2017-07-21 | 合肥工业大学 | A kind of trailer-mounted radar is in ring real-time simulation test system and its method |
| CN107192986A (en) * | 2017-07-05 | 2017-09-22 | 上海为彪汽配制造有限公司 | Universal adjustment support, digital display millimetre-wave radar adjustment system and its adjusting method |
| CN107561515A (en) * | 2017-08-17 | 2018-01-09 | 北京润科通用技术有限公司 | A kind of automobile-used millimetre-wave radar detectivity test system |
| CN207336743U (en) * | 2017-11-01 | 2018-05-08 | 河北工业大学 | A kind of two angle car radar target simulation systems |
| CN207924128U (en) * | 2017-12-01 | 2018-09-28 | 北京润科通用技术有限公司 | A kind of radar test calibration system |
| CN109975777A (en) * | 2019-04-25 | 2019-07-05 | 上海为彪汽配制造有限公司 | The adjusting bracket of radar |
Non-Patent Citations (3)
| Title |
|---|
| Yong Feng Gui et al..Phenomena of Paired Echoes and Transmission Characteristics of the Pulse Signal in Dispersive Transmission Lines with Discontinuities.Progress In Electromagnetics Research B.2008,第5卷全文. * |
| 许克君 ; 杨锁昌 ; 杨森 ; 王卫国 ; 陈维 ; .基于LXI总线的制导站分布式测试系统设计.计算机测量与控制.2011,(03),全文. * |
| 高训兵 ; .具有天线扫描特性的雷达信号算法设计与实现.国外电子测量技术.2017,(07),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112824928A (en) | 2021-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104931799A (en) | On-chip antenna electrical property test system and method | |
| CN211236220U (en) | Radar testing device and radar production line testing system | |
| CN110568413A (en) | test system and method integrating radar calibration, active transceiving and measurement parameters | |
| CN112824928B (en) | System and method for testing radar production line | |
| Boehm et al. | Robotically controlled directivity and gain measurements of integrated antennas at 280 GHz | |
| CN217766841U (en) | Omnidirectional scanning radar, movable detection equipment and radar detection system | |
| CN112526469A (en) | Vehicle-mounted millimeter wave radar test system | |
| CN112394234A (en) | Quick aerial production line test platform | |
| CN113111509B (en) | System and method for testing electrical performance of antenna housing of analog phased array antenna | |
| US7162200B2 (en) | Antenna calibration system and method | |
| CN115524674A (en) | Millimeter wave radar antenna phase calibration method, device, equipment and storage medium | |
| RU2293405C1 (en) | Shipboard radar station | |
| CN210894514U (en) | Phased array antenna test system | |
| JPH09311153A (en) | Antenna tower and radiation immunity testing facility using same | |
| CN111579885A (en) | Measuring system, measuring device and method for measuring | |
| CN115047256A (en) | Array antenna multichannel parallel test device, test method and calibration method | |
| RU2394253C1 (en) | Mobile ultra-high frequency three-dimensional radar | |
| CN113447895B (en) | Automobile millimeter wave radar compact range test system and method | |
| CN112578327B (en) | Calibration method, device and storage medium of spherical scanning test system | |
| CN211856750U (en) | Antenna housing test system | |
| CN114994420A (en) | Phased array antenna array element channel phase deflection characteristic test method | |
| CN109904586B (en) | Beam width variable antenna and beam rapid regulation and control method thereof | |
| CN112444684A (en) | Method and measuring mechanism for measuring antenna in antenna system in back point needle mode | |
| CN213151021U (en) | Adjustable sector beam VICTS array antenna | |
| CN112180181A (en) | System and method for testing equivalent radiation power and radiation pattern of radar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |