Digital communication using low-rank noise processes: subspace detectors

Abstract

We propose a new digital modulation technique that yields a natural resistance against hostile-detection. The transmitted waveform is constructed of orthogonal low-rank stochastic processes, allowing for an elegant geometrical interpretation of the waveform. Channel effects are considered,, and we propose a channel-interference eliminating subspace detector. The technique is demonstrated by numerical simulations which shows that our subspace detectors yield high-quality and reliable receivers.