Title :
Multiple-channel detection using generalized coherence
Author :
Cochran, Douglas ; Gish, Herbert
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
The properties and performance of the generalized coherence (GC) estimate as a statistic for detecting the presence of a common but unknown signal on several noisy channels are examined. The H 0 distribution function of the GC estimate derived in earlier work is applied to develop detection thresholds corresponding to a range of false alarm probabilities for various numbers of channels and data sequence lengths. Results of simulations to determine the performance of a GC-based detector as a function of the signal-to-noise ratios on the data channels are presented
Keywords :
noise; signal detection; telecommunication channels; data channels; data sequence lengths; detection thresholds; false alarm probabilities; generalized coherence; noisy channels; unknown signal; Detectors; Distribution functions; Equations; Probability; Random variables; Recursive estimation; Signal to noise ratio; State estimation; Statistical distributions; Statistics;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.116228
