Azimuth-only target motion analysis method and system for water surface track planning

Abstract

The invention discloses a pure azimuth target motion analysis method and system for water surface track planning. The analysis method comprises a preprocessing step, a target prediction position obtaining step and a target prediction position correction value obtaining step. The target position prediction model based on the time convolution network is used for obtaining the target prediction position, and compared with a traditional positioning method, the prediction accuracy of the target position prediction model is higher; according to the method, the initial signal is decomposed by adopting the ensemble empirical mode decomposition method, and the target prediction position is obtained by using the target position prediction model, so that the problem that the calculation precision is reduced or even diverged is not easy to occur; according to the method, the motion state equation of the target is constructed, and on the basis, the recursive least square method is used for correcting the target prediction position output by the target position prediction model, so that all observation information in the observation process is utilized, and the accuracy and stability of target motion state prediction are further improved.

Description

technical field [0001] The invention belongs to the technical field of target motion analysis for track planning, and more particularly relates to a pure azimuth target motion analysis method and system for water surface track planning. Background technique [0002] The trajectory planning technology of UUV under complex sea conditions is an important research direction of marine science, and plays a pivotal role in both military and civilian fields. Target positioning is one of the key technologies for UUV track planning. Accurate positioning of obstacles in the navigation path is the basis for making intelligent agent optimization decisions and planning track tasks. The pure azimuth target motion analysis obtains the motion state such as the position and speed of the obstacle by observing and analyzing the azimuth information of the obstacle. It has the advantages of long range, high flexibility and strong concealment. [0003] In the process of pure azimuth target motion...

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Problems solved by technology

[0016] Aiming at the defects of the prior art, the purpose of the present invention is to provide a method and system for analyzing the movement of an azimuth-only target for surface track planning, aiming at solving the problems in the prior art such as the decrease of solution accuracy, insufficient utilization of observation information, Problems with large fluctuations in forecast results

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