Implementation and effectiveness of the method of amplitude suppression negative reflections from the sea surface on the thermal receiver noise

We research the feasibility and efficiency of nonlinear suppression of radar sea clutter in coherent reception bandpass tract, while the amplitude characteristic of the nonlinear converter is a series expansion in a system of linearly independent functions, the coefficients of which are chosen by the criterion of maximum noise reduction coefficient. A model of the most appropriate non-Gaussian noise from the sea surface, which is based on the K-distribution of probability density and allows the thermal noise of the receiver. A comparison of effi-cacy of optimal nonlinear transformation and the non-linear transformationon in the form of a polynomial. It is shown that the non-linear converter using an approximation of the optimal amplitude characteristic of high order polynomials, almost equal to the efficiency of non-linear optimal converter for various marine reflections of the model parameters.