Real-time adaptive airborne MTI. II. Space-frequency processing

For pt.I see ibid., p.755, 1996. The considerations on space-time adaptive processing for clutter rejection in air- and spaceborne radar presented in pt.I of this paper are continued. While in part I space-time processing algorithms were presented which are capable of adaptive real-time processing in this paper some consideration on frequency domain processing are made. Two new variants of the well-known space-time processors described in pt.I are presented. All processors presented in the two twin papers are compared in terms of computational complexity which is equivalent to the real-time processing capability. It is shown that frequency domain processing may yield some advantage over space-time processing.