Method for suppressing false alarm of emplacement radar

Abstract

The invention discloses a false alarm suppression method for an emplacement radar, and the method comprises the steps: firstly extracting the trace point features of a target, and carrying out the trace point filtering processing; secondly, extracting track characteristics according to a target track, and extracting ballistic characteristics such as an emergence angle, an emergence direction and a speed by using the track; and generating a confidence coefficient matrix according to the track features and the trajectory features, and then performing processing by using an SVM algorithm to identify a real target and a false alarm. In a strong clutter and interference environment, the false alarm probability of the emplacement radar can be obviously reduced; extra information does not need to be obtained, processing can be completed on the basis of existing target information, and the design requirement for the radar is reduced; reliability of the radar is greatly improved, and economic cost and time resources are saved.

Description

technical field [0001] The invention relates to the processing of gun position radar information, in particular to a false alarm suppression method of gun position radar. Background technique [0002] The main task of the ground artillery reconnaissance radar is to detect and track the projectiles of the enemy artillery on the battlefield. The radar tracks the flying projectiles for a short period of time, and after processing, determines the position of the enemy artillery in a short time. Therefore, there is only one target of the artillery radar, that is, the projectile flying in the air, other than that, it can be regarded as a false alarm. Due to the complex working environment, it faces serious clutter interference, including ground clutter, meteorological clutter (clouds, rain, snow, hail, atmospheric turbulence, etc.), interference clutter, aircraft taking off and landing, flying birds, etc. In addition to seriously affecting the detection of targets, the biggest pr...

AI Technical Summary

Problems solved by technology

The traditional idea of ​​suppressing clutter interference is to take measures in signal processing, including moving target indication (MTI), moving target detection (MTD), pulse compression, constant false alarm and clutter map, etc. These methods can remove most clutter , but still a considerable part of the remaining clutter is detected and sent to the back-end data processing, thus forming false dot tracks, causing great interference to the track start and tracking filtering of data processing, and finally leading to the formation of false alarms

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