Summary
International Symposium on Antennas and Propagation
2011
Session Number:ThD2
Session:
Number:ThD2-3
Initialization Scheme with Least Square Optimization based-DOA Estimation for CMA Adaptive Antenna
Akkarat Boonpoonga, Tanawut Tantisopharak, Monai Krairiksh,
pp.-
Publication Date:2011/10/25
Online ISSN:2188-5079
Summary:
This paper presents an initialization scheme for a constant modulus algorithm (CMA) adaptive antenna. With the proposed scheme, the direction of arrival (DOA) of signals is estimated by using nonconventional least square optimization. The antenna steering vector associated with the estimated DOA is used as an initial weight vector for CMA. Simulations were conducted to evaluate the performance of proposed scheme. Simulation results in term of total system response were shown to investigate the capturing behavior of CMA with initialization of estimated DOA. Moreover, SIR trajectories are shown to compare the convergence rate of the proposed CMA and conventional one.