Method for suppressing track false alarm of low, small and slow target detection radar

Abstract

The invention relates to a method for suppressing track false alarm of a low, small and slow target detection radar, which comprises the following steps: in a data processor, establishing a track for all trace points reported by a signal processor, judging by comparing the radial velocity of the trace points with the track velocity, judging that the current track is clutter when the radial velocity of the trace points is greater than a certain threshold value of the track velocity, deleting the clutter otherwise, judging that the track is the track of the real target, and reporting the track to a radar terminal for display. In the same environment, by adopting the method, the track false alarm displayed by the radar terminal can be effectively inhibited, and the use requirements of users are met.

Description

technical field [0001] The invention belongs to the technical field of radars, and in particular relates to a method for suppressing false alarms of low, small and slow target detection radar tracks. Background technique [0002] "Low, small and slow" target detection radar is essentially a moving target detection radar, which requires a difference between the Doppler frequency of the background interference clutter and the Doppler frequency of the target to be detected, and the background interference clutter can be filtered out by using the frequency filtering method waves, so that the radar detects the target signal traces from the clutter background, thereby forming the target track. [0003] However, in the actual environment, the Doppler frequency of disturbing clutter such as shaking bushes or leaves is often the same or very close to the Doppler frequency of the "low, small and slow" target to be detected, which makes it difficult to filter out these clutter by frequ...

AI Technical Summary

Problems solved by technology

[0003] However, in the actual environment, the Doppler frequency of disturbing clutter such as shaking bushes or leaves is often the same or very close to the Doppler frequency of the "low, small and slow" target to be detected, which makes it difficult to filter out these clutter by frequency filtering. Background interference clutter, these clutters often form a large number of false tracks, causing difficulties for customers in radar use

[0004] Usually, the way to deal with this kind of problem is that the radar uses a fine-grained frequency filtering method to suppress these clutters, so that these clutters do not form traces as much as possible, but in complex environments, these clutter suppression is difficult to deal with

Images