Exploiting a Priori Information in Multiple - Channelsignal
نویسندگان
چکیده
This paper addresses questions about how the distribution of the generalized coherence (GC) estimate formed with data from several noisy channels is aaected by prior knowledge about the presence of a signal on one or more of the channels. In particular, the distribution of the estimate is shown to be invariant to the statistics of one of the channels under established signal-absent hypotheses on the other channels. Also, the conditional distribution of the GC estimate given the value of the estimate formed from a subset of the channels is derived. Examples illustrating the application of these results in multiple-channel signal detection are presented.
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