Maximin sonar system design for detection

A maximin approach is applied to the problem of detecting a point target in white noise and clutter. That is, the reverberation scattering function (which characterizes the clutter) is not assumed to be known exactly. The problem becomes one of finding a signal-filter combination which provides the best possible lower bound on detector performance. A "quasi-universal" solution is obtained for this problem which is applicable in many practical situations. For many other situations a general (but preliminary) theory is developed.