False track elimination method based on distance differential

Abstract

The invention discloses a false track elimination method based on distance differential. The problems of high false alarm probability and high false alarm law of a flight path in a complex environmentare solved. According to the method, track distance differential Doppler speed and trace point Doppler speed consistency statistical discrimination processing are added on the basis of an original classical processing algorithm, so that the false alarm probability is greatly reduced, and effective tracking of a real target is ensured. Compared with the prior art, the method has the advantages that a statistical method instead of real-time judgment is adopted, so that the problem of track tracking failure caused by occasional one-time Doppler velocity jump is avoided; according to the method,the channel number difference between a track Doppler filter and a plot Doppler filter is calculated, so that the track Doppler speed and the plot Doppler speed are prevented from being fuzzy, and therelated correctness is improved; compared with a traditional processing method, the method has the advantages that the false alarm probability of the flight path can be greatly reduced, the number offalse flight paths can be reduced by one order of magnitude through testing, and the effect is obvious.

Description

technical field [0001] The invention relates to the technical field of radar information processing, in particular to a method for eliminating false tracks based on distance differentiation. Background technique [0002] For general traditional radars, the distance, azimuth, pitch (or height) information of the echo is usually used to track the target in the process of track processing. False tracks, and it is very easy to cause track association errors, resulting in track tracking and other problems. [0003] However, the traditional point-track filtering technology is difficult to realize the refined processing of the track target point-track in the complex and changeable space environment. [0004] Some scholars have proposed a fine-grained spot-track processing method for air traffic control radar. For example, "Radar Science and Technology" recently published an article entitled "Design and Implementation of Air Traffic Control Primary Radar Refined Spot-Trace Processi...

AI Technical Summary

Problems solved by technology

[0006] In view of the problems in the above-mentioned technical background, the purpose of the present invention is to provide a method for eliminating false tracks to solve the problems of high false alarm probability and high false alarm rate of tracks in complex environments. This method is based on the original classical processing algorithm On the basis of the track distance differential Doppler velocity and the one-time point track Doppler velocity consistent statistical discriminant processing, not only greatly reduces the false alarm probability, but also ensures the effective tracking of the real target, is an effective False track elimination method

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