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| DSSS系统中基于WHT的自适应干扰抑制 | |
| 引用本文： | 周映,杨斌,肖先赐.DSSS系统中基于WHT的自适应干扰抑制[J].信号处理,2004,20(4):353-355. |
| 作者姓名： | 周映 杨斌 肖先赐 |
| 作者单位： | 1. 电子科技大学电子工程学院,成都,610054;中国电子科技集团公司第十研究所,成都,610036 2. 中国电子科技集团公司第十研究所,成都,610036 3. 电子科技大学电子工程学院,成都,610054 |
| 基金项目： | 战术抗干扰国防重点实验室:00JS04.7.1DZ2001 |
| 摘 要： | 本文提出了一种新的DSSS系统自适应干扰抑制方案。针对Wigner-Ville分布的不足,采用WHT来分析接收信号,并从中提取干扰瞬时频率以设计时变IIR滤波器。和通常采用的线性相位FIR滤波器相比,IIR滤波器具有理想的点阻特性。仿真结果证实IIR滤波器的BER性能好于FIR滤波器。 |
| 关 键 词： | DSSS WHT 时频分析 干扰抑制 |
| 修稿时间： | 2003年5月27日 |
Adaptive Time-varying Cancellation of Interference in DSSS Based on WHT |
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| Zhou Ying Yang Bin Xiaoxian Ci.Adaptive Time-varying Cancellation of Interference in DSSS Based on WHT[J].Signal Processing,2004,20(4):353-355. | |
| Authors: | Zhou Ying Yang Bin Xiaoxian Ci |
| Affiliation: | The Electronic 10th Institute of Ministry of Information Industry 610036 Department of Electronic Engineering of UESTC 610054 |
| Abstract: | In this paper, a novel scheme of interference mitigation in DSSS is proposed. To overcome the shortcoming of Wigner-Ville distribution, we adopt-WHT analyzing received signal and measuring the instantaneous frequency of interference to design time-varying IIR filter. The IIR filter has ideal characteristic compared with FIR filter with linear angle. The results of computer simulation show the BER of IIR filter is lower than that of FIR filter. |
| Keywords: | DSSS WHT time-frequency distribution interference mitigation |
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