Spectral modelling of airborne radar signal in presence of windshear phenomena

In this paper, a parametric spectral model of the received signal from airborne Doppler weather radar in presence of windshear is proposed. This parametric model can be used for detection of windshear without the application of a clutter rejection pre-filter. The bimodal shape of the model has been defined as a superposition of clutter and windshear. Two parameters of the model are closely related to mean and variance of wind velocity associated to the windshear. The model performance analysis is done by comparing the proposed spectrum model to a simulated received signal spectrum.