| 基于一致聚焦的宽带信号波达方向估计 |
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| 引用本文： | 陈洪光,余圣发,沈振康.基于一致聚焦的宽带信号波达方向估计[J].通信学报,2006,27(1):64-68. |
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| 作者姓名： | 陈洪光 余圣发 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 |
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| 摘 要： | MTLS聚焦需要预估计波达方向,预估计偏差会影响聚焦效果,严重时会导致CSM算法失效。基于AMI思想构造了CMTLS一致聚焦变换,该聚焦变换无需预估计波达方向,提高了聚焦性能的同时,增强了算法的实时性。
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| 关 键 词： | 聚焦 |
| 文章编号： | 1000-436X（2006）01-0064-05 |
| 收稿时间： | 2004-12-11 |
| 修稿时间： | 2005-06-07 |
Direction finding method for wideband signals base on consistent focusing |
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| CHEN Hong-guang,YU Sheng-fa,SHEN Zhen-kang.Direction finding method for wideband signals base on consistent focusing[J].Journal on Communications,2006,27(1):64-68. |
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| Authors: | CHEN Hong-guang YU Sheng-fa SHEN Zhen-kang |
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| Affiliation: | ATR LAB, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | MTLS focusing method needs estimating direction of arrival firstly.Estimation bias in only few frequency bins could impair the entire USCM(universal spatial covariance matrix)estimation.Consistent MTLS focusing method was proposed based on the idea of AMI(array manifold interpolating).Simulations show CMTLS focusing method not only improves the focusing performance,but also reduces the computational burden. |
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| Keywords: | CSM MTLS CMTLS |
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