Title: Separable space-time pattern synthesis for the techsat21 space-based radar system
Abstract: The TechSat2 1 space-based radar employs a cluster of free-floating satellites, each of which transmits its own orthogonal signal and receives all reflected signals.The satellites operate coherently at X-band.The cluster forms essentially a multi-element interferometer with a concomitant large number of grating lobes and significant ground clutter.A novel technique for pattern synthesis in angle-frequency space with thinned arrays, combined with reduced order space-time processing, was presented by us at the 200 1 IEEE Aerospace Conference, along with some preliminary results.We now give a full evaluation of this technique and its effectiveness in clutter suppression.'