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| 一种基于实数域特征值分解的前后向平滑算法 | |
| 引用本文： | 张陆游,张永顺,徐加汉. 一种基于实数域特征值分解的前后向平滑算法[J]. 上海航天, 2010, 27(4): 6-9 |
| 作者姓名： | 张陆游 张永顺 徐加汉 |
| 作者单位： | 1. 空军工程大学导弹学院,陕西,三原,713800;中国人民解放军94994部队,江苏,南京,210036 2. 空军工程大学导弹学院,陕西,三原,713800 3. 中国人民解放军94994部队,江苏,南京,210036 |
| 摘 要： | 为减小算法的运算量,对常规前后向空间平滑(FBSS)算法进行改进,提出了一种基于实数域特征值分解的前后向平滑(RDFBSS)算法。算法根据前后向平滑算法协方差矩阵的中心-厄米特对称特点,通过实值化变换,使FBSS算法的特征值分解从复数域转为实数域,大幅减少了算法的运算量,且不影响解相干和统计性能,提高了实用性。仿真结果证实了算法的有效性。 |
| 关 键 词： | 波达方向 相干 实数域特征值分解 前后向空间平滑 |
A Real Eigen-Value Decomposition FBSS Algorithm |
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| ZHANG Lu-you,ZHANG Yong-shun,XU Jia-han. A Real Eigen-Value Decomposition FBSS Algorithm[J]. Aerospace Shanghai, 2010, 27(4): 6-9 | |
| Authors: | ZHANG Lu-you ZHANG Yong-shun XU Jia-han |
| Affiliation: | 1. The Missile Institute of Air Force Engineering University, Sanyuan Shaanxi 713800, China; 2. The Unit 94994 of CPLA, Nanjing Jiangsu 210036, China) |
| Abstract: | To improve the computation efficiency of direction of angle （DOA） estimation algorithm, a modified foreword backward space smooth （FBSS） algorithm which was called real eigen-value decomposition FBSS （RDFBSS） algorithm was put forward in this paper. According to the centro-Hermitian structure of FBSS correlation matrix, this algorithm made the FBSS eigen-value decomposition in real through the real operation on the data covariance matrix, which would reduce the FBSS algorithm computation, and the de-correlation performance and statistic performance was not affected by the real eigen-value decomposition, and the real-time capability was improved. The simulation results showed that this algorithm was effective. |
| Keywords: | Direction of angle Coherent Real eigen-value decomposition Frontward backward space smooth |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |