DocumentCode
1243475
Title
Tunable Matched Filters for Pulse-Code Modulation Using Charge-Transfer Devices
Author
Waggener, W.N.
Author_Institution
EMR Telemetry, Weston Instruments, Inc., Sarasota, Fla.
Volume
23
Issue
3
fYear
1975
fDate
3/1/1975 12:00:00 AM
Firstpage
394
Lastpage
397
Abstract
A tunable matched filter for the major PCM codes has been synthesized utilizing a developmental bucket-brigade delay (BBD) line. The variable delay feature of the BBD allows continuous tuning of the matched filter over a wide range of bit rates. By combining and weighting the outputs of two BBD lines, matched filters for nonreturn-to-zero (NRZ), return-to-zero (RZ), and biphase codes are realized with a signal-to-noise performance within 0.8 dB of theoretical.
Keywords
Bucket-brigade devices; Matched filters; PCM communication; Tunable filters; Charge coupled devices; Clocks; Delay; Frequency; Impedance matching; Matched filters; Optical signal processing; Phase change materials; Pulse modulation; Tuning;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOM.1975.1092808
Filename
1092808
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