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Performance of diversely polarized antenna arrays for correlated signals

机译:相关信号的不同极化天线阵列的性能

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摘要

The performance of direction finding systems in a correlated signal environment utilizing diversely polarized antenna arrays is investigated. The Cramer-Rao bound (CRB) is used to evaluate the accuracy of the estimated directions of arrival (DOAs). Compact closed form formulas are presented for the CRB corresponding to the joint estimation of the DOAs, signal covariance matrix, signal polarization parameters, and noise variance. The CRB is evaluated numerically for selected examples, to provide insights into the potential improvement in direction-finding accuracy due to polarization diversity.
机译:研究了在使用不同极化天线阵列的相关信号环境中测向系统的性能。 Cramer-Rao边界(CRB)用于评估估计的到达方向(DOA)的准确性。针对CRB提出了紧凑的封闭形式公式,这些公式对应于DOA,信号协方差矩阵,信号极化参数和噪声方差的联合估计。对于选定的示例,对CRB进行了数字评估,以提供对由于极化分集导致的测向精度潜在改善的见解。

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