| LFM信号时间-调频斜率分布交叉项抑制方法 |
| |
| 引用本文： | 杜雨洺,杨建宇.LFM信号时间-调频斜率分布交叉项抑制方法[J].系统工程与电子技术,2010,32(2):229-231. |
| |
| 作者姓名： | 杜雨洺 杨建宇 |
| |
| 作者单位： | (1. 成都信息工程学院电子工程学院， 四川 成都 610225；;
2. 电子科技大学电子工程学院， 四川 成都 610054) |
| |
| 摘 要： | 分析了多线性调频信号的时间 调频斜率分布的交叉项，导出了交叉项的数学表达式，结合线性调频信号的特点，提出用Radon变换的交叉项抑制的方法，该方法具有运算量小的特点。仿真表明该方法能滤除绝大部分交叉项和噪声，且能用于低信噪比的场合。
|
| 关 键 词： | 线性调频信号 时间-调频斜率分布 交叉项抑制 Radon变换 |
Elimination of cross terms of time-frequency rate distribution of LFM signals |
| |
| DU Yu-ming,YANG Jian-yu.Elimination of cross terms of time-frequency rate distribution of LFM signals[J].System Engineering and Electronics,2010,32(2):229-231. |
| |
| Authors: | DU Yu-ming YANG Jian-yu |
| |
| Institution: | (1. Chengdu Univ. of Information Technology, Chengdu 610225, China;;
2. School of Electronic Engineering, Univ. of Electronic Science and;
Technology of China, Chengdu 610054, China) |
| |
| Abstract: | The cross terms of time-frequency slope distribution of a multiple linear frequency modulated(MLFM) signal are analyzed.Analytical expresses of the cross terms are derived.Based on the properties of the MLFM signal,the Radon transformation is proposed to suppress the cross terms.Compared to other approaches,the proposed method has low computational load.Computer simulation results demonstrate that large amount of cross terms and noise are suppressed and the proposed method works for low SNR scenario. |
| |
| Keywords: | LFM signal time-frequency rate distribution cross terms elimination Radon transformation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《系统工程与电子技术》浏览原始摘要信息 |
| 点击此处可从《系统工程与电子技术》下载免费的PDF全文 |
