Idealized Bistatic RADAR GMTI Detection with Space-Time Processing

In a recent paper by the author a novel approach was utilized for determining upper-bound ground moving target indication (GMTI) radar detection performance with two-dimensional space-time processing. That model utilized an idealized clutter model and other simplifying assumptions to clarify the method. The method is extended here to the general bistatic case. It is shown that the elements of the clutter covariance matrix can be obtained from cross-correlations of the convolutions of (appropriately transformed) transmit and receive aperture functions at different times and locations. A simulation based on this theory was developed that accommodates arbitrary transmitter-receiver geometry. When this general bistatic model is specialized to the monostatic case, it is shown to agree both theoretically and computationally with the earlier results.