Title :
A sequential maximum-likelihood multiple source tracker and the relation of phase-locked loop theory to eigenstructure methods
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
A phase-lock-type bearing solution is derived from maximum-likelihood considerations, and the effects of other sources in the equivalent bandwidth are shown. This version effectively normalizes input signal power and excludes the need for estimation of the source power. Noise analysis leads to the determination of error variance, probability of detection, and resolution. The derivations shed considerable light on the eigenstructure methodologies. Optimum weights on the noise-space eigenvectors are obtained. Simulations show a significant resolution improvement over MUSIC.<>
Keywords :
eigenvalues and eigenfunctions; interference (signal); parameter estimation; phase-locked loops; signal detection; signal processing; MUSIC; eigenstructure methods; equivalent bandwidth; error variance; input signal power; noise-space eigenvectors; phase-lock-type bearing solution; phase-locked loop theory; probability of detection; resolution; sequential maximum-likelihood multiple source tracker; signal processing; Bandwidth; Equations; Maximum likelihood detection; Maximum likelihood estimation; Multiple signal classification; Phase locked loops; Sensor arrays; Signal resolution; Tracking loops; Vectors;
Conference_Titel :
Communications, Computers and Signal Processing, 1989. Conference Proceeding., IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC, Canada
DOI :
10.1109/PACRIM.1989.48399
