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A radar target echo simulation method and system

A radar target and echo simulation technology, applied to radio wave measurement systems, instruments, etc., can solve the problem of low accuracy of test results

Active Publication Date: 2020-08-04
BEIJING JINGWEI HIRAIN TECH CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a radar target echo simulation method and system to solve the problem of low accuracy of the test results caused by using a constant RCS to test the vehicle millimeter-wave radar in the prior art

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  • A radar target echo simulation method and system
  • A radar target echo simulation method and system
  • A radar target echo simulation method and system

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] figure 1 For the flow chart of the first radar target echo simulation method disclosed in the embodiment of the present invention, see figure 1 As shown, the method may include:

[0041] Step 101: The radar target echo simulator receives the radio frequency transmission signal transmitted by the radar.

[0042]Among them, the radar here includes but is not limited to millimeter-wave radar for vehicles. To realize radar target echo simulation, it is f...

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Abstract

The invention discloses a radar target echo simulation method and a system. The method comprises the following steps of receiving a radio frequency emission signal sent by a radar by a radar target echo simulator, and carrying out down conversion so that the signal becomes an intermediate frequency signal; sending first information which is preset by a user to an RCS acquisition system; receivingan RCS value which corresponds to the first information and is sent by the RCS acquisition system; generating a target intermediate frequency signal including an echo amplitude corresponding to the RCS value; and carrying out up conversion on the target intermediate frequency signal, acquiring a target echo signal and radiating and emitting the signal. By using the radar target echo simulation method and the system, based on the variable RCS value, echo simulation is performed; for a specific target, when angles are different, the RCS values are different; and an effect of an actual road target which is irradiated by the radar can be realistically and accurately simulated and accuracy of a radar test result is increased.

Description

technical field [0001] The invention relates to radar test technology, more specifically, to a radar target echo simulation method and system. Background technique [0002] The Advanced Driver Assistant System (ADAS) is an important application of artificial intelligence in the field of transportation. This technology is a comprehensive technology integrating environmental perception, planning decision-making and task execution. One of the directions of development. As one of the most important environmental sensors in the intelligent assisted driving system, the millimeter-wave radar for vehicles plays the role of the "eyes" of the car. It provides road environment variables for ADAS by detecting the distance, angle and relative speed of road targets. After ADAS obtains the relevant data of road targets provided by the vehicle millimeter-wave radar, it performs corresponding analysis and judgment, controls the steering and speed of the vehicle, and realizes humanoid drivin...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/40
CPCG01S7/4052
Inventor 顾翔田海燕张诣萌万亮
Owner BEIJING JINGWEI HIRAIN TECH CO INC