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Adaptive multistage beamforming using cyclic higher order statistics (CHOS)

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1 Author(s)
Martone, M. ; Telecommun. Group 700, Watkins-Johnson Co., Gaithersburg, MD, USA

A new blind beamforming algorithm for signals that exhibit higher order cyclostationarity is presented. Exploiting some previous theoretical developments, we show how cyclic cumulants of the received signals can be used to obtain the weights of the beamformer that perform blind extraction. The method is based on a spatial interpretation of a deconvolution procedure known as the super-exponential algorithm. The basic block processing algorithm is made fully adaptive using an adaptive URV scheme and applied to a typical mobile communications scenario where several cochannel interferers corrupt the signals of interest

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Signal Processing, IEEE Transactions on  (Volume:47 ,  Issue: 10 )