2D DOA Estimation of quasi-stationary signals for uniform circular arrays via a Khatri-Rao subspace approach
Diego A. Aguirre-Rodriguez, Antonio Acevedo, Sandra L. Gomez-Coronel · 2019
This paper is focus on describe a new methodology for the 2D (Azimuth and Elevation) estimation of the direction of arrival (DOA) of quasi-stationary signals, based on a Khatri-Rao (KR) subspace approach for uniform circular arrays (UCA). The developed methodology is effective on under-determinated scenarios where the additive spatial noise is unknown, and the SNR is low. To demonstrate the effectiveness and performance of the algorithm, several simulations and tests were performed for different scenarios.