| 平稳色噪声背景下相干信源DOA估计的新算法 |
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| 引用本文： | 黄良彪,王凯,张永顺.平稳色噪声背景下相干信源DOA估计的新算法[J].航天电子对抗,2008,24(4):54-57. |
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| 作者姓名： | 黄良彪 王凯 张永顺 |
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| 作者单位： | 江西公安专科学校,江西南昌,330103;空军工程大学导弹学院,陕西三原,713800 |
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| 摘 要： | 提出一种基于对称均匀线阵的波达方向(DOA)估计新方法.该算法在未知噪声协方差矩阵为复对称Toeplitz结构的情况下,利用空间差分方法和相干信源信息Toeplitz矩阵重构相结合,来处理同时存在相干、非相干信源的情况.该算法在提高阵列的信源过载能力的同时,可明显减小运算量.计算机仿真结果证明了算法的有效性和正确性.
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| 关 键 词： | 波达方向估计 空间差分 传播算子 |
A novel algorithm on DOA estimation for correlated sources under stationary colored noise |
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| Huang Liangbiao,Wang Kai,Zhang Yongshun.A novel algorithm on DOA estimation for correlated sources under stationary colored noise[J].Aerospace Electronic Warfare,2008,24(4):54-57. |
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| Authors: | Huang Liangbiao Wang Kai Zhang Yongshun |
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| Institution: | Huang Liangbiao1,Wang Kai2,Zhang Yongshun2(1.Jiangxi Police Technological Academy,Nanchang 330103,Jiangxi,China,2.Missile Institute of Air Force Engineering University,Sanyuan 713800,Shanxi,China) |
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| Abstract: | A novel algorithm to direction of arrival(DOA) estimation for symmetric uniform linear array is presented to cope with the scenario where both uncorrelated sources and coherent sources exist.Under condition of colored noise field,the algorithm employs spatial differencing method to eliminate the noise covariance matrix and uncorrelated sources,then a Toeplitz matrix is constructed for the remaining coherent sources.After preprocessing,propagator method(PM) is employed to find the DOAs without any eigende co... |
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| Keywords: | DOA estimation spatial differencing propagator method |
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