| 基于改进WVD的跳频信号参数估计方法 |
| |
| 引用本文： | 刘玉珍,赵冉.基于改进WVD的跳频信号参数估计方法[J].计算机工程与设计,2011,32(11):3916-3919. |
| |
| 作者姓名： | 刘玉珍 赵冉 |
| |
| 作者单位： | 辽宁工程技术大学电子与信息工程学院,辽宁葫芦岛,125105 |
| |
| 摘 要： | 为了克服传统的平滑伪魏格纳分布(SPWVD)在跳频信号参数估计中分辨率降低的问题,提出基于改进WVD算法的跳频信号参数估计新方法。通过分析跳频信号WVD的性质和特点,构造出与跳频信号WVD自项支撑区重合的时频窗,用其与信号WVD相乘进行加窗,有效抑制交叉干扰项的同时保持了WVD良好的时频分辨率,得到了清晰的跳频信号时频分布,基于此分布给出跳频信号参数估计的具体步骤。仿真实验结果表明,该方法有效可行且具有很好的整体性能。
|
| 关 键 词： | 跳频信号 参数估计 时频分析 谱图 魏格纳分布 |
Frequency-hopping signal parameter estimation based on improved WVD |
| |
| LIU Yu-zhen,ZHAO Ran.Frequency-hopping signal parameter estimation based on improved WVD[J].Computer Engineering and Design,2011,32(11):3916-3919. |
| |
| Authors: | LIU Yu-zhen ZHAO Ran |
| |
| Affiliation: | LIU Yu-zhen,ZHAO Ran(School of Electronic and Information Engineering,Liaoning Technical University,Huludao 125105,China) |
| |
| Abstract: | To overcome the lower resolution problem of using smoothed pseudo Wigner-Ville distribution(SPWVD) to estimate the frequency-hopping signal parameters,a new method for frequency-hopping signal parameter estimation is proposed based on improved WVD.By analyzing the nature and characteristics of WVD,a time-frequency window is constructed,which covered the frequency-hopping signal WVD auto-term support area,and by using this time-frequency window multiplied with signal WVD to windowing it in time-frequency pla... |
| |
| Keywords: | frequency hopping signals parameter estimation time-frequency analysis spectrum Wigner-Ville distribution(WVD) |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
