Outer transmitter-based radar target track processing method based on clustering

Abstract

The invention belongs to the technical field of target track generation, particularly relates to an outer transmitter-based radar target track processing method based on clustering. The outer transmitter-based radar target track processing method based on clustering includes the steps of firstly, receiving the signal of each transmitter through a receiving antenna, and conducting channel balancing and down-conversion on the signal of each transmitter to obtain original data; secondly, sequentially conducting clutter cancellation, distance-Doppler operation, constant false alarm rate detection and amplitude comparison angle measurement on the original data so as to obtain front end processed data; thirdly, generating the tracks of all targets through a clustering method according to the front end processed data.

Description

technical field [0001] The invention belongs to the technical field of target track generation, in particular to a method for processing target track of external radiation source radar based on clustering. Background technique [0002] External radiation source radar, also known as passive radar, refers to a radar detection system that does not emit electromagnetic waves itself, but uses electromagnetic wave signals already in the air to obtain target-related information. Conventional active radars are vulnerable to electronic jamming and anti-radiation missile attacks because their transmitted signals are easily intercepted and intercepted by the enemy. In contrast, external radiation source radar uses radio, television, satellite and other civilian sources of radiation for target detection and positioning technology to solve the above-mentioned drawbacks of active radar, and has anti-jamming, anti-radiation missile, anti-low-altitude penetration and anti-stealth The compr...

AI Technical Summary

Problems solved by technology

However, due to the harsh environment of the external radiation source radar system and the very weak echo signal, a relatively low detection threshold is used to reduce the false alarm rate, resulting in a large number of false alarm points

Therefore, when using TOA information for calculation, especially in the case of information fusion of multiple radiation sources, a large number of false points will be generated, which will bring great difficulties to the subsequent track processing. Not only may many false tracks be generated, Moreover, it also increases the complexity and calculation amount of the system, which affects the real-time processing and display of the track.

When the measurement information contains multiple targets, the above problems will become more serious

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