MTI, MTD and adaptive clutter cancellation

Clutter is very harmful in radars, whether military or civil radar, since it always appears accompanying the useful target signal. Therefore, how to reject clutter is one of the most important problems facing the radar designer. There are many ways to reject clutter, but this chapter discusses in detail the method of suppressing the clutter in the frequency domain with MTI (moving target indication) or moving target detection (MTD) techniques. With these methods, one can obtain sub-clutter visibility. This chapter treats and compares four processing techniques for clutter suppression: moving target indicators, moving target detectors, adaptive MTI and optimum MTI.