Photoelectric fusion continuous wave radar leakage interference elimination device and method

Abstract

The invention provides a photoelectric fusion continuous wave radar leakage interference elimination device and method, and belongs to the technical field of radars. According to the photoelectric fusion continuous wave radar leakage interference elimination device, leakage interference is eliminated by adopting a microwave photon link and cable link fusion active cancellation method. And the microwave photon link regulates and controls the phase, delay and amplitude of the reference signal led out by the continuous wave signal emission source to achieve the cancellation matching conditions ofphase inversion, delay matching and equal amplitude with the leakage interference signal. The photoelectric fusion continuous wave radar leakage interference elimination device has the advantages ofwide working frequency band range, large bandwidth and high regulation and control precision, effectively suppresses leakage interference signals, and ensures high transceiving isolation of the continuous wave radar.

Description

technical field [0001] The invention belongs to the technical field of radar, and relates to a continuous wave radar leakage interference elimination device and method for photoelectric fusion. Background technique [0002] Continuous wave radar uses single-frequency, multi-frequency or frequency-modulated continuous waves for transmission and reception. Compared with pulse radar, it has the advantages of low power consumption, low interception, low-slow and small target detection, and high-range resolution. It is used in autonomous driving, It has great application potential in areas such as aircraft landing, Doppler navigation, speed measurement, and altimetry. The continuous wave working method makes the high-power transmission signal of the radar transmitter leak to the receiver and cause serious interference, which is called leakage interference. High-power leakage interference will saturate or even burn out the amplifier of the receiver, causing the system to fail to ...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a photoelectric fusion continuous wave radar leakage interference elimination device and method, which effectively solves the limitations of the narrow radio frequency working bandwidth and low amplitude and phase control accuracy of the radio frequency active cancellation method in the background technology, and can control the interference within a large bandwidth range. Effective suppression of leakage interference to meet the application requirements of high transceiver isolation for continuous wave radar

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