一种线性调频信号参数提取方法  

A Novel Parameter Extraction Method of Linear Frequency Modulation Signal

作　　者：李彦[1] 姜军[1] 朱丰[2] 柏又青[1] 

机构地区：[1]空军工程大学理学院,陕西西安710051 [2]空军工程大学信息与导航学院,陕西西安710077

出　　处：《空军工程大学学报（自然科学版）》2014年第6期49-52,共4页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(61174194)

摘　　要：针对线性调频(LFM)信号参数提取问题,提出了一种基于Erosion变换和Hough变换的LFM信号参数提取方法。利用B-分布分析方法描述LFM信号,在此基础上,进一步利用Erosion变换突出雷达LFM信号的特点,利用Hough变换提取LFM信号参数。仿真分析表明:该方法能够较精确的提取出LFM信号参数,误差不超过1%,并具有良好的抗噪性能。Aimed at the parameter extraction of Linear Frequency Modulation（LFM）signal,an novel parameter extraction method is proposed in this paper based on Erosion transform and Hough transform.First,LFM signal is described by using B-distribution analysis method.On the basis of this,the Erosion transform is utilized to highlight the characters of radar LFM signal,and then Hough transform is employed to extract LFM signal parameters.The simulation indicates that the method can not only extract the parameters of LFM signal in precision,but also has a good anti-noise performance.

关 键 词：LFM信号 参数提取 B-分布 Erosion变换 HOUGH变换 

分 类 号：TN953[电子电信—信号与信息处理]