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The design of beamformer is an important aspect in array signal processing applied in several fields including radar, sonar, wireless communication and so on. The Capon beamformer, which has been used widely because of its many advantages, requires a priori knowledge of array manifold which sometimes it is difficult to obtain in some applications. Thus, the techniques of blind adaptive beamforming...
This paper investigates the wordlength effect on the CMA adaptive antenna with digital beam synthesis initialization. The antenna is a four-element circular array whose main beam can be switched into different directions by using digital beam synthesizer. A beam obtained from digital beam synthesis is exploited as an initial beam for CMA. A weight vector for generating initial beams of CMA is chosen...
A new adaptive algorithm, called RLMS, which combines the use of recursive least square (RLS) and least mean square (LMS), is proposed for array beam forming. The convergence of the RLMS algorithm is analyzed, in terms of mean square error, in the presence of additive white Gaussian noise. Computer simulation results show that the convergence performance of RLMS is superior to either RLS or LMS operating...
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