Title :
DOA identifiability for rotationally invariant arrays
Author :
Swindlehurst, A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA
fDate :
7/1/1992 12:00:00 AM
Abstract :
The problem of DOA (direction-of-arrival) estimation using sensor arrays composed of two identical uncalibrated rotated subarrays is considered. It is shown that such arrays do not provide an identifiable parameterization of the problem; i.e. unlike ESPRIT, unique estimates are not possible when more than one signal is present
Keywords :
parameter estimation; signal processing; direction-of-arrival estimation; identical uncalibrated rotated subarrays; rotationally invariant arrays; signal processing; Arteries; Cepstral analysis; Cepstrum; Deconvolution; Delay effects; In vivo; Pulse measurements; Signal processing; Thickness measurement; Ultrasonic imaging;
Journal_Title :
Signal Processing, IEEE Transactions on
