Target intention recognition method based on improved D-S evidence theory

Abstract

The invention discloses a target intention recognition method based on an improved D-S evidence theory, belongs to the field of radar technology and relates to a networking radar target intention recognition technology. The method solves the problems that evidence acquired by different radar needs to be comprehensively considered for networking radar target intention recognition, and when different evidence has a mutual conflict, a traditional D-S evidence theory cannot effectively recognize a target intention. The method is characterized in that first, data received by networking radar is preprocessed, then basic probability allocation of all evidence is acquired based on similarities between intentions and the evidence, and finally a similarity coefficient among the evidence is introduced into evidence conflict handling and D-S evidence synthesis considering relevancy among the evidence. Through the method, abnormal data in the data received by the networking radar can be removed, adverse influences of the abnormal data on target intention recognition are reduced, the problem of an evidence conflict in practical application is effectively solved, and target intention recognitionperformance is improved.

Description

technical field [0001] The invention belongs to the technical field of radar, and relates to a networked radar target intention recognition technology. Background technique [0002] Target intent recognition is the process of inferring the target's purpose or predicting its future actions from the acquired incomplete information. Target intent recognition plays a key role in battlefield situation assessment and is also the basis of threat assessment. Whether the target intention can be correctly identified is related to the situation change of the entire battlefield, so the target intention identification technology has become a key research topic of experts at home and abroad. [0003] Due to the incomplete information of the target actually obtained, it contains a high degree of randomness and uncertainty. Traditional Bayesian probability theory is difficult to describe this irregular uncertainty, while D-S evidence theory has the ability to solve uncertain factors and o...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to aim at the defects in the background technology, research and design a target intention recognition method based on the improved D-S evidence theory, and solve the problem that the traditional D-S evidence theory cannot effectively identify the target intention when the existing evidences conflict with each other

This method effectively solves the problem of evidence conflicts in practical applications and improves the performance of target intent recognition

Images