Title :
Cramer-Rao bounds for passive range and depth in a vertically inhomogeneous medium
Author :
Rendas, M.D. ; Moura, José F.
Author_Institution :
Dept. Eng. Electr. e Comput., Inst. Superior Tecnico, Lisboa, Portugal
Abstract :
Cramer-Rao bounds are established for passive location in a multipath environment with an array of multiple sensors. The source signature is wideband stationary and the background noise is white. General expressions are derived for the bounds, and the performance gain contributed by the interpath delays over location techniques based on wavefront curvature only (i.e. spatial processing across the array of sensors) is shown
Keywords :
acoustic signal processing; signal detection; underwater sound; Cramer-Rao bounds; acoustic signal processing; array of multiple sensors; background noise; interpath delays; location techniques; multipath environment; oceanographic propagation; passive location; performance gain; source signature; spatial processing; underwater sound; wavefront curvature; white noise; Acoustic propagation; Background noise; Delay; Ducts; Equations; Genetic expression; Oceans; Performance gain; Propagation delay; Sea surface; Sensor arrays; Strontium; Wideband;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.116202
