|
|||||
|
|
| 欠采样条件下的正弦信号时差估计 | |
| 引用本文： | 徐捷,孟嘉,黄高明,杨绿溪.欠采样条件下的正弦信号时差估计[J].航天电子对抗,2005,21(4):22-24,32. |
| 作者姓名： | 徐捷 孟嘉 黄高明 杨绿溪 |
| 作者单位： | 1. 中国航天科工集团8511研究所,南京,210007;东南大学无线电工程系,南京,210096 2. 东南大学无线电工程系,南京,210096 3. 东南大学无线电工程系,南京,210096;海军工程大学电子工程学院,武汉,430033 |
| 摘 要： | 针对正弦信号时差估计的多解模糊问题,提出采用多周期取点欠采样和多重相关方法来解决。这种方法可有效降低处理的复杂度,增大时差估计的范围和稳定性,避免噪声及干扰对时差估计的影响,最重要的是它能够适用于高频信号(如雷达、电子战等)的测向、测频等处理,促进这些高频系统的数字化接收机处理的实现。仿真实验证明了算法的性能和优越性。 |
| 关 键 词： | 欠采样 时差估计 测向 |
| 修稿时间： | 2004年10月27 |
Time-delay estimation for sub-sampling sinusoidal signals |
|
| Xu Jie,MENG Jia,Huang Gaoming,Yang Luxi.Time-delay estimation for sub-sampling sinusoidal signals[J].Aerospace Electronic Warfare,2005,21(4):22-24,32. | |
| Authors: | Xu Jie MENG Jia Huang Gaoming Yang Luxi |
| Abstract: | To resolve the problem of time-delay estimation for sub-sampling sinusoidal signals,a new method composed of multi-period sampling and multi-layer correlation is proposed.This method can reduce the complexity of estimation and improve the range of time-delay estimation and its stability.It also has an excellent performance to reduce the effect of noise and interference.The most important contribution of this new method is that it adapts to high frequency (HF) signal processing in radar,electronic warfare (EW),etc.It will accelerate the realization of digital receiver for HF systems.Simulations show the performance and advantage of this method. |
| Keywords: | sub-sampling time-delay estimation direction finding |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |