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Quantization noise of signal correlators.

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Title: Quantization noise of signal correlators.
Author: Klingler, Rolf Jerg
Degree: Master of Applied Science - MASc
Program: Electrical and Computer Engineering
Copyright Date: 1972
Subject Keywords Radio waves.
Issue Date: 2011-04-11
Publisher University of British Columbia
Series/Report no. UBC Retrospective Theses Digitization Project [http://www.library.ubc.ca/archives/retro_theses/]
Abstract: In radio-astronomy, spectra of noisy signals are often computed using digital auto-correlation techniques. To simplify the design of the many high-speed multipliers and averagers, coarse quantization is employed, using only a few digital levels. This thesis is a theoretical study of the penalty paid for such coarse quantization in the form of increased output noise. A degradation factor is defined and is calculated for a variety of logic schemes which have been used or proposed. For each scheme, results are given as a function of sampling rate and it is demonstrated that there is often significant improvement in sampling at rates faster than the Nyquist rate. A computer simulation technique was developed for verifying the computed results, and for extending the results to complicated schemes where analysis is very difficult.
Affiliation: Applied Science, Faculty of
URI: http://hdl.handle.net/2429/33494
Scholarly Level: Graduate

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