Signal space transform and multidimensional information joint processing for moving target  

作　　者：SHI Yunjia PIAO Shengchun GUO Junyuan ZHANG Liu 

机构地区：[1]Acoustic Science and Technology Laboratory,Harbin Engineering University,Harbin 150001 [2]Key Laboratory of Marine Information Acquisition and Security(Harbin Engineering University),Ministry of Industry and Information Technology,Harbin 150001 [3]College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin 150001

出　　处：《Chinese Journal of Acoustics》2024年第1期23-48,共26页声学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (11904065)。

摘　　要：A signal space transform method for detection of line spectrum signals radiated by moving target is proposed.With time-frequency analysis and beamforming processing,a three-dimensional(3D)time-frequency-azimuth signal space is obtained in the array coordinate system.Given certain target course angle,this 3D signal space is transformed to the time-frequency-relative bearing spectrum signal space in the target coordinate system.Related theoretical derivation,simulation,and experimental data processing are performed.The findings demonstrate that the method is capable of converting the target line spectrum signal 3D trajectory to a 2D trajectory on the corresponding slice in the transformed signal space and signal processing gain of multi-dimensional information joint processing is obtained easier than in 3D signal space.

关 键 词：system. MOVING transformed 

分 类 号：TB56[交通运输工程—水声工程]