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Creating complex signal samples from a band-limited real signal

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1 Author(s)
R. L. Mitchell ; MARK Resources Inc., Santa Monica, CA, USA

A very efficient method of creating complex signal samples from a band-limited real signal is presented. Because the method employs a simple mixer followed by one analog-to-digital (A/D) converter, plus a finite-duration impulse response (FIR) filter for image band rejection, there is no phase distortion in the resulting sampled signal. The method is more efficient than competing methods based on infinite-duration impulse response (IIR) filters

Published in:

IEEE Transactions on Aerospace and Electronic Systems  (Volume:25 ,  Issue: 3 )