NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A minimax technique for time-domain design of preset digital equalizers using linear programmingA linear programming technique is presented for the design of a preset finite-impulse response (FIR) digital filter to equalize the intersymbol interference (ISI) present in a baseband channel with known impulse response. A minimax technique is used which minimizes the maximum absolute error between the actual received waveform and a specified raised-cosine waveform. Transversal and frequency-sampling FIR digital filters are compared as to the accuracy of the approximation, the resultant ISI and the transmitted energy required. The transversal designs typically have slightly better waveform accuracy for a given distortion; however, the frequency-sampling equalizer uses fewer multipliers and requires less transmitted energy. A restricted transversal design is shown to use the least number of multipliers at the cost of a significant increase in energy and loss of waveform accuracy at the receiver.
Document ID
19760039878
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Vaughn, G. L.
(USAF, Institute of Technology, Wright-Patterson AFB Ohio, United States)
Houts, R. C.
(Air Force Inst. of Tech. Wright-Patterson AFB, OH, United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1975
Subject Category
Electronics And Electrical Engineering
Meeting Information
Meeting: International Conference on Communications
Location: San Francisco, CA
Start Date: June 16, 1975
End Date: June 18, 1975
Accession Number
76A22844
Funding Number(s)
CONTRACT_GRANT: NAS8-20172
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available