Support vector machine assisted underwater maneuvering target tracking method based on interactive multiple models

Abstract

The invention provides a support vector machine assisted underwater maneuvering target tracking method based on interactive multiple models, and belongs to the field of underwater target tracking. Foran underwater target, since the motion mode of the underwater target is not fixed and maneuvering is often carried out, it is difficult to keep the parameters of a tracking estimation filter consistent with the actual situation, so that the tracking error is greatly increased when the target maneuvers, the tracking effect is deteriorated, and even the tracking error is possibly caused to be diverged so as to lose the target. For this problem, according to the method provided by the invention, the current motion mode of the target is judged by utilizing the support vector machine; and the probability of each motion model conditional model in the interactive multi-model algorithm is corrected according to the classification result, so that the interactive multi-model algorithm can quickly respond to the motion mode switching of the target, the tracking error is reduced, and the convergence of tracking is ensured. Therefore, the underwater maneuvering target tracking method has importantpractical significance for solving the underwater maneuvering target tracking problem.

Description

technical field [0001] The invention relates to the field of target tracking, in particular to an interactive multi-model-based support vector machine-assisted underwater maneuvering target tracking method. Background technique [0002] The ocean is rich in natural resources, and it is one of the important concerns for the future development of human beings, and it is also an important stage for wrestling among countries. Underwater target tracking technology is used in the military field, such as detecting threatening targets such as torpedoes, submarines, frogmen, and submarine-launched missiles; in civilian fields, such as search and rescue, salvage, unmanned vehicle navigation, etc.; in scientific research fields, such as marine life tracking , environmental monitoring, etc., all have important applications and have broad development prospects. [0003] The tracking of underwater targets is mainly accomplished by ship towed sonar or underwater sensor networks (Underwate...

AI Technical Summary

Problems solved by technology

However, when the actual motion pattern of the model changes, the tracking effect will inevitably deteriorate during the transition phase

Since the interactive multi-model method believes that the switching between models obeys the first-order Markov process, it is difficult to prove that the motion of the tracked target in the actual scene strictly obeys this process, so the historical information of measurement and estimation is difficult to be fully utilized

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