NDLI: Computer simulation results and analysis for a root-raised cosine filter design using canonical signed digits

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Computer simulation results and analysis for a root-raised cosine filter design using canonical signed digits

Content Provider	NASA Technical Reports Server (NTRS)
Author	Kim, Heechul
Copyright Year	1996
Description	Filters implemented using Canonical Signed-Digit (CSD) number representation for the coefficients have been studied for many years as an efficient way to increase the speed and reduce the hardware complexity. A simple and very effective method for designing a CSD filter with a specific set of filter parameters has been investigated and its simulation results are presented here. In order to optimize filter coefficients into the corresponding CSD numbers, the Minimum Mean Square Error (MMSE) criterion is used. Furthermore, an attempt is made to improve frequency response of the CSD filter by allocating an extra non-zero digit for normalized coefficients exceeding one-half. Due to limited filter aperture width in examples presented here, the frequency response of CSD filter as the number of non-zero digits in a CSD code increases is not affected much. A root-raised cosine filter model is employed as a base line for this design approach. Finally, the CSD filter simulation results and a hardware complexity comparison with a conventional filter are also shown along with the eye diagrams an Bit-Error-Rate (BER) performance curves.
File Size	611056
Page Count	18
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19970009815
Archival Resource Key	ark:/13960/t8tb6219s
Language	English
Publisher Date	1996-10-01
Access Restriction	Open
Subject Keyword	Communications And Radar Mean Square Values Error Analysis Algorithms Bit Error Rate Digits Frequency Response Computerized Simulation Channels Data Transmission Fir Filters Optimization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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