DOA估计的可靠性评判及多阵列三角定位
Journal of PLA University of Science and Technology(Natural Science)(2005)
Abstract
提出了一种DOA(derection of arrival)估计可靠性评判准则,试验数据验证了该可靠性评判准则的有效性。DOA估计误差分析表明,目标信号信噪比、传感器失效和采集系统故障等原因均可能导致传感器信号相关性下降或者丢失,而使得DOA估计出现重大偏差;利用可靠性条件,能够方便判定估计DOA的可靠程度。将DOA估计算法及可靠性条件,应用到多DOA三角定位试验中,定位结果表明,该可靠性条件能够有效避免目标位置估计出现野值。
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Key words
DOA estimation,reliability,triangle localization
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