Initialization Scheme with Least Square Optimization based-DOA Estimation for CMA Adaptive Antenna
نویسندگان
چکیده
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.
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