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The purpose of this thesis is to develop a sea clutter simulation model for airborne pulse-Doppler radar. Sea clutter characteristics has been reviewed. The amplitude statistics of sea backscattering is modeled by Weibull distribution with shape parameter linearly depends on the grazing angle. Using interpolation in least square sence on available data [10], the mean backscatter coefficient of sea is implemented by a set of polynomial functions of sea state and grazing angle.
The problem for evaluating the size of range-Doppler cell of arbitrary shape is overcomed by using the closed-form expression developed by Jao and Goggins [8]. This method avoids the need of complicated numerical integration. Consequently, the computational load is greatly reduced. Also a coordinate transformation procedure is developed to determine the angular location of cell relative to the antenna beam axis. Our simulation model for the generation of sea clutter map is applicable for an arbitrary combination of radar pulse-Doppler waveform, platform velocity and altitude, and antenna pointing direction half power beamwidth and sidelobe level. The simulation result show the ability of calculating clutter return in altitude line, side lobe and mainbeam associated with arbitrary antenna orientation.
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