Fast detection method and device for performance of Doppler radar module

A Doppler radar and module technology, which is applied in the field of fast detection methods and devices for the performance of Doppler radar modules, can solve the problems of uncontrollable environmental conditions, impractical mass production, complicated testing procedures, etc. Batch application, lower cost, guaranteed accuracy

Pending Publication Date: 2022-03-08
成都宋元科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing Doppler radar test, one is to use special equipment such as radar simulators, spectrum analyzers, and vector network analyzers to simulate moving targets, but this set of equipment is expensive, the test process is complicated, and the test period is long ; The other is field testing using application scenarios, which is time-consuming and labor-intensive, and there may be uncontrollable environmental conditions, which is not practical for mass production

Method used

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  • Fast detection method and device for performance of Doppler radar module
  • Fast detection method and device for performance of Doppler radar module
  • Fast detection method and device for performance of Doppler radar module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044]In an exemplary embodiment, a method for quickly checking the performance of a Doppler radar module is provided, such as figure 1 As shown, the method includes:

[0045] Set the Doppler radar module to be tested horizontally facing the fan, and keep the horizontal distance between the Doppler radar module and the fan unchanged;

[0046] Rotate the fan at a constant speed, and allow the Doppler radar module to send a detection signal to detect the detection target;

[0047] When the detection signal reaches the detection target, an echo signal is generated, and the echo signal includes the RCS intensity and velocity components of each point in the fan blade;

[0048] The Doppler radar module receives the echo signal, and evaluates the channel performance of the Doppler radar module according to the RCS intensity and velocity components of each point in the fan blade.

[0049] The invention utilizes the uniform motion characteristics of the fan and the different rotating...

Embodiment 2

[0062] In another embodiment, a quick inspection device for the performance of a Doppler radar module is provided, such as image 3 As shown, the device includes:

[0063] base1;

[0064] A fan 2, the fan 2 is arranged on the base 1, and the fan 2 is used to simulate a moving target at a specific speed;

[0065] The Doppler radar module 3 to be tested, the Doppler radar module 3 is arranged on the base 1, and facing the fan 2, the Doppler radar module 3 is used for the The movement of fan 2 blades is detected.

[0066] Specifically, according to the Doppler principle, when electromagnetic waves irradiate a moving metal target, the frequency of the reflected wave generated on the metal surface will change. If the moving target is moving away, the frequency of the reflected wave will become lower; if the moving target is approaching, the frequency of the reflected wave will The frequency will become higher. Doppler radar is a radar that uses the Doppler effect to detect the ...

Embodiment 3

[0070] Based on Embodiment 2, a quick inspection device for the performance of a Doppler radar module is provided, such as Figure 4 As shown, the device further includes a metal shield 4 and a module interface board 6 , and the metal shield 4 is arranged between the Doppler radar module 3 and the fan 2 .

[0071] Specifically, the impact of the environment on the sensitivity test is reduced by using a metal shield, and its cost is much lower than that of a microwave anechoic chamber, and its volume is smaller and it is easier to apply in batches. The module interface board 6 is used for receiving and processing the detection information of the Doppler radar module 3 .

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Abstract

The invention discloses a fast detection method and device for the performance of a Doppler radar module, and belongs to the field of millimeter-wave radar test.The Doppler radar module to be tested is horizontally arranged right opposite to a fan, the fan rotates at a constant speed, and the Doppler radar module sends out a detection signal to detect a detection target; when the detection signal reaches the detection target, an echo signal is generated, and the echo signal comprises the RCS intensity and the velocity component of each point in the fan blades; and the Doppler radar module receives the echo signal and evaluates the channel performance of the Doppler radar module according to the RCS intensity and the velocity component of each point in the fan blade. According to the invention, the uniform motion characteristic of the fan is utilized to simulate a motion target with a specific speed and modulate and demodulate the RCS intensity and speed components of the fan blades, the sensitivity of the radar module can be judged by comparing the RCS intensity and speed components with the RCS intensity and speed components detected by a standard radar module in the scene, and the device is integrated, simple to operate, cost-saving and suitable for batch production.

Description

technical field [0001] The invention relates to the field of millimeter-wave radar testing, in particular to a method and device for quickly checking the performance of a Doppler radar module. Background technique [0002] Millimeter wave radar is a radar working in the millimeter wave band (millimeter wave) detection, with a frequency domain of 30-300 GHz. Civilian millimeter wave frequency bands mainly include 24G, 60G, 77G, etc. The principle is to modulate and demodulate the relevant data of the measured target by transmitting and receiving the returned electromagnetic waves. [0003] With the improvement of semiconductor technology level, millimeter-wave radar chips have been developed and promoted in large numbers, and have been rapidly popularized in the fields of automotive automatic driving radar and life detection radar. Among them, Doppler radar is simple in design, low in cost and widely used. And other characteristics, has a large application market. Since Dop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
CPCG01S7/40
Inventor 唐黎杜东平
Owner 成都宋元科技有限公司
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