Models of Radar Clutter from the Weibull Distribution
نویسنده
چکیده
The clutter is always present in the radar signal, so it is important to generate models that give us the possibility to minimize its effect in the detection of targets in a radar space. In that way, it is focused this paper, where, we try to propose a model that generates discrete time coherent sequences with a Weibull distribution for its modulus and a Uniform distribution for its phase. The coherent Weibull sequence is achieved in two steps. The fist one generates a coherent correlated Gaussian sequence (CCGS) from a coherent white Gaussian sequence (CWGS) using a correlator filter. The second one generates with a NonLinear MemoryLess Transformation (NLMLT) a coherent correlated Weibull sequence (CCWS) from the CCGS generated before. The covariance matrix of the CCWS desired fixes all the parameters of the correlator filter and the NMLT. This matrix includes the power of the sequence, the correlation coefficient between its samples and the clutter frequency of the sequence that models the radar clutter. Key–Words: Radar, Radar Simulation, Clutter Generation, Coherent Weibull, Weibull PDF, Weibull Statistics.
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