  An introduction to the theory of sliding window detection processes, used as
alternatives to optimal Neyman-Pearson based radar detectors, is presented.
Included is an outline of their historical development, together with an
explanation for the resurgence of interest in such detectors for operation in
modern maritime surveillance radar clutter. In particular, recent research has
developed criteria that enables one to construct such detection processes with
the desired constant false alarm rate property for a comprehensive class of
clutter model. The chapter also includes some examples of the performance of
such detectors in a specific interference environment.
