Waveform design for Commensal Radar

Commensal Radar has been proposed as a means of addressing the spectrum congestion problem. It may be defined as a passive bistatic radar (PBR) in which the communications, broadcast or radionavigation waveform is designed not only so that it fulfils its primary purpose, but also so that its properties are in some sense optimized as radar signals. This paper develops these ideas, using as examples some modern digital communications and broadcast modulation formats and an experimental testbed.