ON THE DESIGN OF FINITE IMPULSE RESPONSE FILTERS FOR PRECISION QUADRATURE DEMODULATION

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Authors
  1. Inkol, J.R.
  2. Saper, R.H.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
The accuracy of digital quadrature demodulation can be improved by optimizing the matching of the in-phase and quadrature channel frequency responses. It is shown that an image rejection ratio exceeding 100 dB can be achieved using a pair of finite impulse response filters having 6 and 5 nonzero coefficients, respectively.
Keywords
Impulse response filters;Quadrature demodulation;Phase error;Half band filters;Digital signal processing
Report Number
DREO-1264 —
Date of publication
01 Jul 1995
Number of Pages
46
DSTKIM No
96-00688
CANDIS No
154183
Format(s):
Document Image stored on Optical Disk;Hardcopy

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