Title :
Impact of linear array geometry on direction-of-arrival estimation for a single source
Author :
Vertatschitsch, Edward J. ; Haykin, Simon
Author_Institution :
Commun. Res. Lab. McMaster Univ., Hamilton, Ont., Canada
fDate :
5/1/1991 12:00:00 AM
Abstract :
The analysis is conducted using the Cramer-Rao lower bound simulations and performance modeling of maximum-likelihood estimation (MLE) while assuming a single source of illumination and additive white Gaussian noise. Particular attention is paid to the implementation of the MLE, the threshold signal-to-noise ratio (SNR), probability of outlier, and high SNR mean-squared-error (MSE) performance, which are evaluated and compared for uniform and nonuniform arrays. The conditions under which tradeoffs exist in choosing a particular geometry and their significance are determined
Keywords :
antenna arrays; parameter estimation; signal processing; white noise; Cramer-Rao lower bound; MLE; MSE; SNR; additive white Gaussian noise; array processing; direction-of-arrival estimation; linear array geometry; maximum-likelihood estimation; mean squared error performance; nonuniform arrays; probability of outlier; sensor array; single source; threshold signal-to-noise ratio; uniform arrays; Additive noise; Costs; Direction of arrival estimation; Geometry; Lighting; Maximum likelihood estimation; Phased arrays; Sensor arrays; Sensor systems; Signal to noise ratio;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
