快速正交搜索算法在水声信号处理中的应用  

Application of fast orthogonal search algorithm in underwater acoustic signal processing

作　　者：盛斯雨 郭微 付金山 朴胜春[1,2,3] SHENG Siyu;GUO Wei;FU Jinshan;PIAO Shengchun(Acoustic Science and Technology Laboratory,Harbin Engineering University,Harbin 150001,China;Key Laboratory of Marine Information Acquisition and Security (Harbin Engineering University),Ministry of Industry and Information Technology,Harbin 150001,China;College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学,水声技术重点实验室,哈尔滨150001 [2]海洋信息获取与安全工信部重点实验室(哈尔滨工程大学),工业和信息化部,哈尔滨150001 [3]哈尔滨工程大学水声工程学院,哈尔滨150001

出　　处：《应用声学》2019年第4期712-719,共8页Journal of Applied Acoustics

基　　金：国家自然科学基金项目(11474073)

摘　　要：信号的谱估计技术作为一种十分重要且应用广泛的信号分析处理手段,对其性能的不断提升和改进一直是水声信号处理领域研究的重点和热点。对此,该文将快速正交搜索算法应用于水声信号的谱估计中,通过隐式正交对参数进行搜索,实现对信号频率、幅度、相位的估计。仿真和实验数据处理结果表明,相较于传统的谱估计方法,该方法能稳定且准确地估计水声信号的多个参数,获得频率分辨率较高的谱估计结果。As a very important and widely used signal analysis and processing method, spectrum estimation technology has been the focus and hot spot in the field of underwater acoustic signal processing. In this paper, the fast orthogonal search algorithm is applied to the spectrum estimation of underwater acoustic signals. The parameters are searched by implicit orthogonal method to estimate the frequency, amplitude and phase of the signal. The simulation and experimental data processing results show that compared with the traditional spectral estimation method, this method can estimate many parameters of underwater acoustic signal stably and accurately, and obtain the spectral estimation results with high frequency resolution.

关 键 词：快速正交搜索 谱估计 高分辨率 

分 类 号：O429[理学—声学]