A Pulse Doppler Radar Clutter Suppression Method Based on Track Clutter Map

Abstract

The present invention proposes a fixed flight path clutter suppression method based on the flight path clutter map. The initial algorithm and the track correlation algorithm process the point track information to obtain the target and clutter track information; Compare the track similarity, if it is a clutter track, cancel the display on the radar, if it is a suspected target, upload it to the radar display interface for display. The clutter suppression method of the present invention is aimed at solving some types of clutter such as pedestrians, vehicles, side lobes of large vehicles, or airliners with specific routes, and has been verified by actual measurements that the method can effectively suppress 70%-80% of clutter tracks.

Description

technical field [0001] The invention relates to the communication field, in particular to a pulse Doppler radar clutter suppression method based on a track clutter map. Background technique [0002] The existing pulse Doppler radar can take into account both high detection probability and low false alarm probability in most clean suburbs, deserts or plains, but the detection results in complex urban environments may be affected by large buildings. , pedestrians, passenger planes, or large and small vehicles, if the false alarm probability is guaranteed to be low, the detection probability of weak and small targets will be greatly reduced, and if the detection probability of weak and small targets is high, the false alarm probability will be greatly increased, that is, radar Poor adaptability to complex environments. Therefore, the problem of clutter suppression in urban environments has become a major challenge for current pulse Doppler radars. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] The existing pulse Doppler radar can take into account both high detection probability and low false alarm probability in most clean suburbs, deserts or plains, but the detection results in complex urban environments may be affected by large buildings. , pedestrians, passenger planes, or large and small vehicles, if the false alarm probability is guaranteed to be low, the detection probability of weak and small targets will be greatly reduced, and if the detection probability of weak and small targets is high, the false alarm probability will be greatly increased, that is, radar Poor adaptability to complex environments

Therefore, the problem of clutter suppression in urban environments has become a major challenge for current pulse Doppler radars

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