|
|||||
|
|
| 一种相邻相干信号的DOA估计新方法 | |
| 引用本文： | 李雪静,胡畅霞,胡畅飞,金勇.一种相邻相干信号的DOA估计新方法[J].河南大学学报(自然科学版),2009,39(1). |
| 作者姓名： | 李雪静 胡畅霞 胡畅飞 金勇 |
| 作者单位： | 1. 河南大学,先进控制与智能信息处理研究所,河南,开封,475001;漳州职业技术学院,福建,漳州,363000 2. 石家庄铁道学院,石家庄,050000 3. 73137部队,福建,漳州,363115 4. 河南大学,先进控制与智能信息处理研究所,河南,开封,475001 |
| 摘 要： | 提出一种估计相邻相干信号方位的新方法.该方法首先对传统空间平滑算法得到的数据协方差矩阵进行修正,然后对修正后的协方差矩阵进行奇异值分解,由左奇异矩阵得到噪声子空间;再构造新数据协方差矩阵,进行奇异值分解得到噪声子空间;最后取两次噪声子空间的平均值得到噪声子空间,利用MUSIC算法找到极大值对应的信号方向.计算机仿真表明,该方法能有效地估计出小信噪比下角度相隔较小的相干信号. |
| 关 键 词： | 奇异值分解 相干信号 DOA估计 MUSIC算法 |
A New DOA Estimator for Adjacent Coherent Signal |
|
| LI Xue-jing,HU Chang-xia,HU Chang-fei,JIN Yong.A New DOA Estimator for Adjacent Coherent Signal[J].Journal of Henan University(Natural Science),2009,39(1). | |
| Authors: | LI Xue-jing HU Chang-xia HU Chang-fei JIN Yong |
| Institution: | 1.Institute of Advanced Control and Intelligent Information Processing;Henan University;Henan Kaifeng 475001;China;2.Zhangzhou Institute of technology;Fujian Zhangzhou 363000;3.Shijiazhuang Railway Institute;Shijiazhuang 050000;4.Army 73137;Fujian Zhangzhou 363115;China |
| Abstract: | A new DOA estimator is proposed to estimate DOA of the adjacent coherent signal.This estimator revises the data covariance matrix from traditional spatial smoothing algorithm,firstly.Then singular value is decomposed from covariance matrix,and noise subspace is obtained from left singular matrix.Next,the estimator constructs a new data covariance,and gets a noise subspace by singular value decomposition;so a new noise subspace is averaged by former noise subspaces.Finally,MUSIC algorithm is applied for this... |
| Keywords: | SVD coherent signal DOA estimate MUSIC algorithm |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |