Title :
Maximum-likelihood multiple source tracking utilizing multiple coupled PLLs
Author :
Kirlin, R. ; Su, Yiqun
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
A method for tracking multiple narrowband sources by means of a passive sensor array is presented. The resulting system is composed of an array of coupled digital phase-locked loop pairs (CDPLLS), with each CDPLL pair tracking and canceling a unique source from the system´s input signal composite. The performance of the CDPLL pair, including stability, convergence, equivalent bandwidth, and signal-to-noise ratio (SNR) threshold, is studied through either analysis or computer simulations. A simulated acquisition and resolution of two sources is presented
Keywords :
detectors; digital simulation; phase-locked loops; signal detection; tracking; computer simulations; convergence; coupled digital phase-locked loop pairs; equivalent bandwidth; input signal composite; maximum likelihood; multiple coupled PLLs; multiple narrowband sources; multiple source tracking; passive sensor array; signal-to-noise ratio; stability; Bandwidth; Convergence; Narrowband; Phase locked loops; Phased arrays; Sensor arrays; Signal analysis; Signal to noise ratio; Stability analysis; Tracking loops;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.116220
