| 雷达低空测向环境中的直达波DOA估计算法 |
| |
| 引用本文： | 张陆游,张永顺,杨云,张琳.雷达低空测向环境中的直达波DOA估计算法[J].航天电子对抗,2009,25(3):29-31,54. |
| |
| 作者姓名： | 张陆游 张永顺 杨云 张琳 |
| |
| 作者单位： | 空军工程大学导弹学院,陕西,三原,713800 |
| |
| 基金项目： | 国家自然科学基金，陕西省自然科学基金 |
| |
| 摘 要： | 基于低空测角模型，提出了一种基于四阶累积量的直达波方位估计算法。该算法首先采用Pro—VESPA算法估计出广义方向矩阵，再利用目标直达波信号和多径信号之间的仰角几何关系，不需已知多径信号的相干系数，对广义方向矩阵函数一维搜索就可直接精确获得直达波方位，算法适用于高斯白噪声或色噪声环境，具有较好的鲁棒性。计算机仿真验证了该算法的有效性。
|
| 关 键 词： | 低空测角 波达方向 四阶累积量 直达波 |
Direct signal DOA estimation algorithm in radar low angle bearing environment |
| |
| Zhang Luyou,Zhang Yongshun,Yang Yun,Zhang Lin.Direct signal DOA estimation algorithm in radar low angle bearing environment[J].Aerospace Electronic Warfare,2009,25(3):29-31,54. |
| |
| Authors: | Zhang Luyou Zhang Yongshun Yang Yun Zhang Lin |
| |
| Institution: | Missile Academy of Airfore Engineering College;Sanyuan 713800;Shanxi;China |
| |
| Abstract: | According to the model of low angle bearing,a new direct signal DOA estimation algorithm is proposed based on fourth-order cumulant.Firstly the generalized response vector estimation is got by the Pro-VESPA method.Secondly by using the elevation geometry relation of direct wave and multi-path signals,the accurate direct signal DOA estimation is acquired through one dimension function searching.Using the algorithm doesn't need to know the multi-path signal correlation coefficient.It can be applied in white g... |
| |
| Keywords: | low angle bearing direction-of-arrival （DOA） fourth-order cumulant direct wave |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
