Space-Time-Waveform Adaptive Processing for Frequency Diverse Distributed Radar Apertures

This paper reviews recent developments in the field of adaptive processing for frequency diverse, distributed, radar apertures. The large baseline of such a distributed radar results in angular resolution that is orders of magnitude better than the resolution of a single large radar. This capability comes at the cost of grating lobes (multistatics with evenly spaced apertures) or high sidelobes (multistatics with randomly spaced apertures). This paper presents some of the issues specific to such a radar and develops the notion of frequency diversity and presents the outlines of a data model that addresses the specific nature of frequency diverse distributed apertures.