Radar ground clutter statistical characteristics simulation in reverberation chamber

In order to achieve an effective simulation for Weibull distribution clutter and create a realistic radar environment, a simulation method for ground clutter in a reverberation chamber based on time-domain waveform design is proposed. This method is based on the fading characteristics of a reverberation chamber channel under generalized stationary uncorrelated scattering and controls the amplitude modulated signal to compensate for the attenuation coefficients. By adjusting the ratio of large and small pulse amplitudes in the input signal sequence, the zero mean amplitude characteristics of the conventional input signal of the reverberation chamber can be changed. Then, by using the measured statistical characteristics of ground clutter as a reference, the obtained electromagnetic environment of the ground clutter in the reverberation chamber is consistent with the statistical parameters of the experimental data. Maximum likelihood estimation and KS-test methods are adopted for the parameter estimation and hypothesis verification. Moreover, the measured data of ground clutter fits the standard Weibull model and the experimental data from the reverberation chamber fit the statistical model of measured ground clutter amplitude. It is proven to be possible to achieve an effective simulation of the actual measurements of ground clutter fluctuation characteristics using a reverberation chamber.