Method for measuring speed measurement precision of automobile radar

Abstract

The invention relates to the technical field of radar speed measurement, in particular to a method for measuring the speed measurement precision of an automobile radar, which is characterized in that when a speed measurement radar is used for measuring the speed of a vehicle, the radial speed and the radial distance measured by the speed measurement radar are converted into the actual horizontal speed; the speed measurement error caused by the fact that the radar installation height is directly used for conversion in a traditional speed measurement mode can be avoided, the speed obtained through conversion can be closer to the real speed value, high-precision detection of the speed measurement radar can be achieved, the vehicle speed measurement precision is ensured, the measurement precision is not affected by the vehicle height, and the vehicle speed measurement accuracy is improved. According to the method, a basis can be provided for providing a corresponding target vehicle speed measurement precision requirement during system design, a target vehicle speed error requirement allowed by a traffic system can be given, system parameters are evaluated from the perspective of an application effect, the requirement of application on the system parameters can be accurately known, and the method has a relatively high practical value.

Description

technical field [0001] The invention relates to the technical field of radar speed measurement, in particular to a method for measuring the precision of automobile radar speed measurement. Background technique [0002] Speed ​​radar is used to detect vehicle speed and distance in traffic monitoring, and the measured vehicle information is fed back to video capture. The speed measuring radar is usually installed on a crossbar at a certain height from the ground, and detects vehicle information obliquely downward. During the detection process, the speed measuring radar transmits electromagnetic wave signals through the radar. After being reflected by the vehicle, the radar receives the echo signal and passes the feedback The distance and speed information of the vehicle can be obtained by processing the wave signal, but this information is the detection information of the vehicle in the radial direction of the radar, and the real-time movement information of the vehicle needs ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned problems, the present invention proposes a method for measuring the speed measurement accuracy of automobile radar to solve the problem that the speed measurement radar detects the radial speed and distance of the vehicle, but what is actually needed is the horizontal distance and horizontal speed of the vehicle. The problem of converting the speed and distance of the detected vehicle

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