Target Signal-to-Noise Loss in Multichannel SAR–GMTI Clutter Suppression

Analytic expressions have been formulated to compute the target signal-to-noise loss incurred in the multichannel synthetic aperture radar–ground moving target indication (SAR–GMTI) radar ground clutter suppression. The close-formed loss function is derived under the assumption of strong clutter as a function of several pertinent radar system parameters such as the bandwidth of the radar signal waveform, the coherent processing time interval, and the linear antenna array configuration that may be either fully or sparsely populated. The analytic results provide a convenient means to tradeoff radar designs and the ground moving target detection performance.