Multiwindow method for spectrum estimation and sinusoid detection in an array environment
Ruth Onn, Allan O. Steinhardt · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1991
In many applications (radar, communication, plasma physics) the signal of interest is sinusoidal and is hidden in non-white noise. The multi-window method of spectrum estimation gives a constant false alarm test for the presence of a sinusoid in a time series if the noise can be assumed Gaussian. In this paper we generalize the method to an array and study the resulting test. Expressions for the probabilities of detection and of false alarm are obtained analytically and receiver operation characteristic curves are computed for a particular scenario under different conditions.