Title :
Performance analysis of closed-form, ESPRIT based 2-D angle estimator for rectangular arrays
Author :
Mathews, Cherian P. ; Haardt, Martin ; Zoltowski, Michael D.
Author_Institution :
UF/UWF Joint EE Program, Univ. of West Florida, Pensacola, FL, USA
fDate :
4/1/1996 12:00:00 AM
Abstract :
The 2D DFT beamspace ESPRIT is an algorithm for use in conjunction with uniform rectangular arrays (URAs) that provides automatically paired azimuth and elevation angle estimates of incident signals via a closed-form procedure. We investigate the statistical performance of 2D DFT beamspace ESPRIT. Expressions for the 2D DFT beamspace ESPRIT estimator variances are obtained. Samples variances of the azimuth and elevation angle estimates obtained through Monte Carlo simulations are shown to be in close agreement with theoretically predicted variances.
Keywords :
Monte Carlo methods; direction-of-arrival estimation; discrete Fourier transforms; DFT; Monte Carlo simulations; azimuth elevation angle estimate; closed-form ESPRIT based 2-D angle estimator; elevation angle estimate; estimator variances; performance analysis; rectangular arrays; statistical performance; uniform rectangular arrays; Chromium; Covariance matrix; Eigenvalues and eigenfunctions; Equations; Estimation error; Gaussian noise; Matrix decomposition; Performance analysis; Sparse matrices; Two dimensional displays;
Journal_Title :
Signal Processing Letters, IEEE
