Title :
The Cramer-Rao lower bound for towed array shape estimation with a single source
Author :
Smith, J.J. ; Leung, Y.H. ; Cantoni, A.
Author_Institution :
Lab. of Adaptive Signal Process., Curtin Univ. of Technol., Perth, WA, Australia
fDate :
4/1/1996 12:00:00 AM
Abstract :
This correspondence derives the Cramer-Rao lower bound (CRLB) for towed array shape estimation when using the receiver outputs in the presence of a single planewave narrowband source and additive white noise. Both known and unknown source directions are considered. The CRLB shows that accurate array shape estimation is possible only if the array shape is relatively linear and the source direction away from endfire
Keywords :
acoustic arrays; direction-of-arrival estimation; interference (signal); phase estimation; piecewise-linear techniques; white noise; Cramer-Rao lower bound; additive white noise; piecewise linear model; planewave narrowband source; receiver outputs; single source; source directions; towed array shape estimation; Additive white noise; Australia; Calibration; Direction of arrival estimation; Flexible structures; Narrowband; Phased arrays; Piecewise linear techniques; Sensor arrays; Shape;
Journal_Title :
Signal Processing, IEEE Transactions on
