Approximation of Locally Optimum Detector Nonlinearities.

摘要

The problem of finding a detector nonlinearity which maximizes the efficacy (or asymptotic processing gain) over a class of suboptimal nonlinearities is considered. it is shown that this efficacy maximization problem is essentially the same as the problem of finding the minimum mean square error approximation to the locally optimal detector nonlinearity. This result is compared to some intuitive ideas about suboptimal detection. (Author)