COHERENCE AND TIME-DELAY ESTIMATION
COHERENCE AND TIME-DELAY ESTIMATION
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DOI：
10.1109/proc.1987.13723
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发表时间：
1987-02-01
影响因子：
20.6
通讯作者：
CARTER, GC
中科院分区：
文献类型：
--
作者：
CARTER, GC
本文介绍了相干和时延估计方面的工作的教程回顾。本文对连贯的研究和发展进行了综述。给出了时延的最大似然估计器的一个推导，并解释了该估计器是一类广义互相关器的特殊成员。给出了高信噪比和低信噪比情况下估计器的性能。实现了所提出的相关器，并用合成数据进行了仿真。将计算结果与性能预测结果进行了比较，结果吻合较好。
This paper presents a tutorial review of work in coherence and time delay estimation. A review of coherence research and development is presented. A derivation of the ML estimator for time delay is presented together with an interpretation of that estimator as a special member of a class of generalized cross correlators. The performance of the estimator is given for both high and low signal-to-noise ratio cases. The proposed correlator is implemented and stimulated with synthetic data. The results are compared with performance predictions and found to be in good agreement.