Research on real time multi target localization method for underwater vehicles
In order to solve the problem of multi-target positioning in underwater vehicles,A multi array positioning method based on multi frequency beacon time delay estimation was proposed.The overall design of the multi-target position-ing system was first introduced in the article,followed by the research on the positioning principle based on a 4-element ar-ray,and the systematic error analysis and target velocity measurement method research are carried out;This paper intro-duces a multi-target underwater acoustic signal processing method based on Notch digital filters,which runs on FPGA em-bedded systems and was suitable for multi-channel parallel processing.Finally,the functionality and performance indicators of the system were verified through experiments on Shuibuya Lake.The experimental data shows that the system can per-form real-time positioning and tracking of multiple underwater targets within a certain water area.
multi-targetnotch digital filtersparallel processingreal-time positioning and tracking
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