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Millimeter wave radar radio frequency link test method and device, radar board and medium

A millimeter wave radar and radio frequency link technology, which is applied in the field of radar board and medium, millimeter wave radar radio frequency link test, can solve problems such as low test efficiency, achieve the effect of improving performance test efficiency, avoiding construction, and reducing cost investment

Pending Publication Date: 2021-07-02
GUANGZHOU XAIRCRAFT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the RF link test method of mmWave radar, such as figure 1 As shown, it is usually necessary to build a special microwave anechoic chamber for signal shielding, and at the same time need to use expensive radio frequency signal test equipment to obtain test data; in addition, for the obtained test data, experienced personnel need to manually analyze the test data to judge The quality of the transmitting link of the radio frequency link is low, and the test efficiency is low; at the same time, the radio frequency link covered by the test only includes the main control (Micro Control Unit, MCU), phase locked loop (Phase Locked Loop, PLL), voltage controlled oscillator ( Voltage-controlled Oscillator VCO), RF switch and RF transmit antenna (ANT), unable to achieve test coverage of all RF links

Method used

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  • Millimeter wave radar radio frequency link test method and device, radar board and medium
  • Millimeter wave radar radio frequency link test method and device, radar board and medium
  • Millimeter wave radar radio frequency link test method and device, radar board and medium

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Embodiment 1

[0034] Figure 2A It is a flow chart of a millimeter wave radar radio frequency link testing method provided in Embodiment 1 of the present invention. This embodiment is applicable to the case of testing the millimeter wave radar radio frequency link in any environment. The method can be performed by Millimeter wave radar radio frequency link test device to perform, the device can be implemented in the form of software and / or hardware, and generally can be integrated in the controller on the millimeter wave radar board, the method specifically includes the following steps:

[0035] S110. When the test start instruction is detected, control the radio frequency link on the millimeter-wave radar board to perform a closed-loop transceiving test matching the test task, and obtain at least one test data matching the closed-loop transceiving test.

[0036] The test start command is the command information sent to the controller on the millimeter-wave radar board through the test pin ...

Embodiment 2

[0052] image 3 It is a flow chart of another millimeter-wave radar radio frequency link testing method provided in Embodiment 2 of the present invention. This embodiment is embodied on the basis of the above-mentioned embodiments. The task is to realize the acquisition of the test result of the radio frequency link, and the method specifically includes:

[0053] S210. When the test start instruction is detected, according to the test task of single transmission and single reception, control the radio frequency link to perform radio frequency modulation on the target test data, and then send it to the receiver in the radio frequency link through the transmission channel in the radio frequency link channel to output the IF signal via the receiving channel.

[0054] Specifically, when the millimeter-wave radar board is a single-transmission and single-reception millimeter-wave radar board, the corresponding test task is a single-transmission and single-reception task. At this t...

Embodiment 3

[0066] Figure 4 It is a flow chart of another millimeter-wave radar radio frequency link testing method provided in Embodiment 3 of the present invention. This embodiment is embodied on the basis of the above-mentioned embodiments. In this embodiment, according to the test The task is to realize the acquisition of the test result of the radio frequency link, and the method specifically includes:

[0067] S310. When the test start instruction is detected, control the radio frequency link to perform radio frequency modulation on the target test data according to the single-send-multiple-receive test task, and then send the target test data to each of the radio frequency links through the transmission channel in the radio frequency link. receiving channels to output IF signals through each receiving channel.

[0068] Specifically, when the millimeter-wave radar board is a single-send multi-reception millimeter-wave radar board, the corresponding test task is a single-send multi...

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Abstract

The embodiment of the invention discloses a millimeter wave radar radio frequency link test method and device, a radar board and a medium, and the method comprises the steps: controlling a radio frequency link on a millimeter wave radar board to be tested to execute a closed-loop transmit-receive test matched with a test task when a test starting instruction is detected, and obtaining at least one test data matched with the closed-loop transmit-receive test, wherein the radio frequency link comprises a sending link and a receiving link; using a receiving antenna array in a receiving link for receiving a signal sent by a sending antenna array in a sending link to form the closed-loop transmit-receive test; according to the test data, generating a test result of the radio frequency link, so that automatic performance test of the millimeter wave radar radio frequency link is achieved, the test efficiency is improved, the test covers all the radio frequency links, meanwhile, construction of a special test environment is avoided, and extra cost input is reduced.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of radar testing, and in particular to a millimeter-wave radar radio frequency link testing method, device, radar board and medium. Background technique [0002] The radio frequency link is the main factor affecting the performance of the millimeter wave radar. Testing the radio frequency link of the millimeter wave radar is of great significance to the judgment of the performance of the millimeter wave radar. [0003] At present, the RF link test method of mmWave radar, such as figure 1 As shown, it is usually necessary to build a special microwave anechoic chamber for signal shielding, and at the same time need to use expensive radio frequency signal test equipment to obtain test data; in addition, for the obtained test data, experienced personnel need to manually analyze the test data to judge The quality of the transmitting link of the radio frequency link is low, and the test effi...

Claims

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Application Information

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IPC IPC(8): G01S7/40
CPCG01S7/40Y02D30/70
Inventor 陈锦贤
Owner GUANGZHOU XAIRCRAFT TECH CO LTD