Matrix pencil method for simultaneously estimating azimuth and elevation angles of arrival along with the frequency of the incom

In this paper we describe a method for simultaneously estimating the direction of arrival (DOA) of the signal along with its unknown frequency. In a typical DOA estimation problem it is often assumed that all the signals are arriving at the antenna array at the same frequency which is assumed to be known. The antenna elements in the array are then placed half wavelength apart at the frequency of operation. However, in practice seldom all the signals arrive at the antenna array at a single pre-specified frequency, but at different frequencies. The question then is what to do when there are signals at multiple frequencies, which are unknown. This paper presents an extension of the matrix pencil method to simultaneously estimate the DOA along with the operating frequency of each of the signals. This novel approach involves approximating the voltages that are induced in a three-dimensional antenna array, by a sum of complex exponentials by jointly estimating the direction of arrival (both...

• Type: Journal
• Year: 2006
• Where: DSP
• Authors: Nuri Yilmazer, Raul Fernandez-Recio, Tapan K. Sarkar
• Keywords: Antenna Array, DOA Estimation, DSP 2006, DSP 2010, Matrix Pencil Method