Multi-station radar signal fusion detection method based on tracking information

Abstract

The invention belongs to the technical field of radars, discloses a multi-station radar signal fusion detection method based on tracking information, and solves the problem in a multi-station radar networking system that the signal fusion detection probability is low. The realization process of the method comprises the steps of: according to a track initial algorithm, obtaining a target initial state estimated value and an original state estimated covariance matrix, and determining a target prediction port door at the kth moment according to the target state estimated value at the (k-1)th moment and the state estimated covariance matrix at the (k-1)th moment; dividing the target prediction port door at the kth moment into a plurality of fusion detection units, calculating the detection threshold of each fusion detection unit in the target prediction port door, and obtaining a measured data set at the kth moment; according to the measured data set at the kth moment, calculating the target state estimated value and the state estimated covariance matrix at the kth moment; and judging whether the track ends. Compared with an existing signal fusion detection method, the target detection probability is improved.

Description

technical field [0001] The invention relates to the field of radar technology, in particular to a multi-station radar signal fusion detection method based on tracking information, which is used to improve target detection probability and track continuity in a networked radar system composed of a plurality of radar stations. Background technique [0002] With the development of target stealth technology, it will be difficult to achieve continuous detection and tracking of targets by relying on a single radar. Compared with the single-station radar system, the multi-station radar network system can comprehensively utilize the target observation information of each radar station to improve the detection and tracking performance of the entire radar network. In the multi-station radar network system, the signal fusion detection algorithm can obtain target detection performance better than that of single-station radar by fusing the target echo signals of each radar station. [00...

AI Technical Summary

Problems solved by technology

However, when the target suddenly disappears, if the method is still used to adjust the detection threshold in the target prediction area, it will not be able to ensure that the track can end quickly, resulting in the generation of false tracks

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