| 分布信号源的DOA估计 |
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| 引用本文： | 陈洪光,王世晞,沈振康. 分布信号源的DOA估计[J]. 国防科技大学学报, 2005, 27(3): 67-71 |
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| 作者姓名： | 陈洪光 王世晞 沈振康 |
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| 作者单位： | 国防科技大学,ATR重点实验室,湖南,长沙,410073;国防科技大学,ATR重点实验室,湖南,长沙,410073;国防科技大学,ATR重点实验室,湖南,长沙,410073 |
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| 摘 要： | 由于信号模型的偏差,传统的点目标假设下的DOA估计算法对分布信号源的估计误差较大,为此建立了分布信号源的模型,提出适用于分布源信号的DIS-MUSIC算法,并分析了该算法的估计性能。仿真结果表明,所提算法对分布信号源的DOA估计性能远优于MUSIC算法。
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| 关 键 词： | DOA DIS-MUSIC 分布信号源 |
| 文章编号： | 1001-2486(2005)03-0067-05 |
| 收稿时间： | 2005-03-10 |
| 修稿时间： | 2005-03-10 |
Estimation of the Directions of Arrival of Distributed Sources in Array Processing |
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| CHEN Hongguang,WANG Shixi and SHEN Zhenkang. Estimation of the Directions of Arrival of Distributed Sources in Array Processing[J]. Journal of National University of Defense Technology, 2005, 27(3): 67-71 |
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| Authors: | CHEN Hongguang WANG Shixi SHEN Zhenkang |
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| Affiliation: | CHEN Hong-guang,WANG Shi-xi,SHEN Zhen-kang 073,China) |
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| Abstract: | Most of the existing methods of high resolution direction estimation rely on the assumption that the signals are from point sources. Thus, the application of the conventional estimation methods to the distributed sources will show grave deterioration in performance. A new model is constructed for the distributed sources, and an estimation method named DIS-MUSIC proposed. The performance of this method is analyzed and computer simulation results show that DIS-MUSIC is of much better performance than MUSIC algorithm. |
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| Keywords: | direction of arrival dIstributed-source-MUSIC distributed source |
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