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Simulation performance of a blind adaptive array for a realistic mobile channel

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4 Author(s)
Agee, B.G. ; Radix Technologies, Inc., Mountain View, CA, USA ; Reed, J. ; Cohen, K. ; Hsia, T.C.

A least squares constant modulus algorithm (LSCMA) is used to blindly adapt a narrowband beamformer to capture a Doppler-shifted and fading binary phase shift keying (BPSK) signal corrupted by noise and multipath. The multipath components are modeled as having equal amplitude and uniformly distributed phase, as well as directions of arrival in three dimensions (the Parsons and Turkmani channel model). Two implementations of the LSCMA are evaluated by computer simulation for a 4-element antenna array moving at 60 mph and 120 mph in noisy environments. In a comparison of bit error rates (BERs) between the two LSCMA implementations and the single antenna, the LSCMAs are found to provide 8 to 9 dB improvement in the link budget for a BER of 1%

Published in:

Vehicular Technology Conference, 1993., 43rd IEEE

Date of Conference:

18-20 May 1993

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