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1 Model of detecting signal for maritime ship targets The problem of target detection in clutter is the most concerned one in radar techniques. As the probability density function(PDF) of clutter amplitude is Rayleigh function, i.e. its in-phase and quadrature componeds obey Gaussian distribution, the optimal detection theory for targets submerged in clutter has been well established. But clutter amplitude does not certainly obey Rayleigh distribution. The PDF of the clutter amplitude may develope a longer “tail” (“
As the probability density function (PDF) of clutter amplitude is Rayleigh function, ie its its in-phase and quadrature componets obey Gaussian distribution, the optimal detection theory for targets submerged in clutter has been well established. But the clutter amplitude does not certainly certainlyeyey Rayleigh distribution. The PDF of the clutter amplitude may develope a longer ”tail “ ( ”