| 检测调频信号的改进算法研究 |
| |
| 引用本文： | 梁红,田琬逸,李志舜. 检测调频信号的改进算法研究[J]. 船舶工程, 2000, 0(4): 43-44,49 |
| |
| 作者姓名： | 梁红 田琬逸 李志舜 |
| |
| 作者单位： | 西北工业大学航海工程学院 |
| |
| 摘 要： | 针对LFM信号，提出了一种改进的LMS算法，通过修正权系数，使之能跟 上信号的调频速率，从而实现低信噪比（-15dB）条件下的信号检测。文中叙述了算法的基本原理及仿真结果，指出了对于LFM信号，修正权系数的LMS算法比LMS算法具有更好的提取弱信号的能力，并且算法运算量小。
|
| 关 键 词： | LMS算法 修正权系数 调频信号 信号检测 |
An Improved Algorithm For Detecting LFM Signal |
| |
| Laing Hong,Tian Wanyi and Li Zhishun. An Improved Algorithm For Detecting LFM Signal[J]. Ship Engineering, 2000, 0(4): 43-44,49 |
| |
| Authors: | Laing Hong Tian Wanyi Li Zhishun |
| |
| Abstract: | In this paper,a new modified algorithm based on LMS is proposed by modifying the weighting factor at the far end of the line,which can follow the lineary varying frequency of the input,so that the capability to detect LFM signal can be improved even in low signal noise ratio(-15dB) condition.The basic principle of the proposed algorithm and the simulation results are described.The simulation results show that the modified LMS algorithm is satisfactory. |
| |
| Keywords: | Modified LMS algorthm Modified weighting factor Detecting and tracking |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《船舶工程》浏览原始摘要信息 |
|
点击此处可从《船舶工程》下载全文 |
