Noise Covariance Modeling In Array Processing
Noise Covariance Modeling In Array Processing
复制标题
阵列处理中的噪声协方差建模
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
A. Weiss
中科院分区：
文献类型：
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作者：
B. Friedlander;A. Weiss
研究了协方差矩阵未知的有色噪声环境下的方向估计问题。环境噪声协方差矩阵可以通过已知的直到乘法标量的厄米特矩阵的和来建模。使用这个模型，我们联合估计的信号和噪声模型参数的到达方向。在一定的条件下，有可能获得无偏和有效的信号方向估计。
We consider the problem of direction finding in the presence of colored noise whose covariance matrix is unknown. The ambient noise covariance matrix can be modeled by a sum of Hermitian matrices known up to a multiplicative scalar. Using this model, we estimate jointly the directions of arrival of the signals and the noise model parameters. Under certain conditions, it is possible to obtain unbiased and efficient estimates of the signal directions.