Method and device for detecting field simulation of multi-target radar chronographs

Abstract

The invention discloses a method and device for detecting field simulation of multi-target radar chronographs. The device comprises multiple simulation detection units, an industrial personal computerand a microwave frequency meter, wherein each simulation detection unit comprises an automatic angle tracking system, a distance meter, a Doppler signal target simulation device and a display screen,which are arranged on a cradle head; the automatic angle tracking systems are used for determining relative angles of chronographs; the distance meters are used for determining distances between thechronographs and the Doppler signal simulation devices; the microwave frequency meters are used for measuring emission frequencies of the chronographs; the Doppler target simulation devices are used for modulating distance meter signals and corresponding speed Doppler signals and feeding back the signals to detected chronographs; the detected chronographs are used for detecting speed values corresponding to Doppler frequency display; the display screens are used for displaying the speed values, azimuth angles, pitch angles and the distances; and the industrial personal computer is connected with the automatic angle tracking system, the distance meters, the Doppler target simulation device, the display screens and the microwave frequency meter to automatically complete the whole detection process. The device and method provided by the invention can realize the simultaneous simulation of multiple targets at chronograph fields.

Description

technical field [0001] The invention belongs to the detection field of radar speedometers, in particular to a field simulation detection method and detection device for multi-target radar speedometers. Background technique [0002] In order to reduce traffic accidents caused by speeding, traffic management departments generally use radar speedometers to monitor the speed of motor vehicles. Traditional motor vehicle radar speedometers generally capture the speed of a single target, and the angle effect is eliminated by correcting the installation angle. In recent years, some companies at home and abroad have begun to put multi-target radar speedometers on the market. In addition to capturing the speed of multiple targets at the same time, this speedometer can also measure the relative distance and relative angle between the target and the radar speedometer. Differentiate between different goals. [0003] At present, the detection methods at home and abroad are generally bas...

AI Technical Summary

Problems solved by technology

This method was proposed in 2002. Since there was no multi-target radar speedometer on the market at that time, the method only considered the measurement of a single target and speed parameters, and could not measure multiple targets and their corresponding speed, distance, and angle parameters. Comprehensive measurement

Chinese patent ZL 2015 1 0055898.7 discloses a vehicle radar speedometer on-site detection device to achieve single-target detection, and the device uses a method similar to the antenna pattern, through the collaborative work of the microwave power meter and the closed-loop control platform, Align the simulator antenna with the detected radar speedometer. The device determines the position of the detected speedometer by finding the maximum power point. Since the maximum power point of each detection is unknown, it is necessary to find that the measured value exceeds the peak value during the scanning process. Back to the peak position, so there is a problem with slower alignment speed

In addition, since the transmission power of the detected speedometer fluctuates to a certain extent, the background noise of the surrounding environment may also affect the detection, so there is a problem of low alignment accuracy

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