基于FOCUSS算法的LFM信号幅度估计可行性研究  

Feasibility study of LFM signal amplitude estimation based on FOCUSS

作　　者：魏佳佳 杨萃[2] WEI Jiajia;YANG Cui(Guangzhou City Polytechnic,Guangzhou 510405,China;South China University of Technology,Guangzhou 510640,China)

机构地区：[1]广州城市职业学院,广东广州510405 [2]华南理工大学,广东广州510640

出　　处：《电声技术》2019年第4期44-45,48,共3页Audio Engineering

摘　　要：LFM信号在超声测量中应用广泛,为提高LFM信号参数估计的准确度和精度,本文采用基于压缩感知理论的FOCUSS参数估计算法,并通过Matlab软件仿真验证得出FOCUSS算法能够有效实现LFM信号的幅度参数估计。Linear Frequency Modulation signal is widely used in ultrasonic measurement. In order to improve the accuracy of LFM signal parameter estimation,this paper adopts FOCUSS algorithm based on compressed sensing theory,and verifies that FOCUSS algorithm can effectively realize LFM signal amplitude parameter estimation by simulation with MATLAB software.

关 键 词：超声测量 压缩感知 LFM信号 FOCUSS算法 

分 类 号：TN912[电子电信—通信与信息系统]