DocumentCode :
757436
Title :
The SCEM-PLL and Ideal FM Detection: Part II--Noise and Distortion
Author :
Scott, R.E.
Author_Institution :
Hong Kong Polytechnic Inst., Kowloon
Volume :
27
Issue :
6
fYear :
1979
fDate :
6/1/1979 12:00:00 AM
Firstpage :
925
Lastpage :
927
Abstract :
The conventional FM discriminator is subject to wideband distortion (WBD) which increases with increasing modulation frequency for wide frequency deviations. The output filtering for such discriminators cannot, in general, be optimized (i.e., in the Wiener sense). The SCEM-PLL (Sine-Cosine E -Matrix Phase-Lock-Loop) is not subject to WBD; also, optimum output filtering can be used. Experimental studies (of noise effects and of WBD) in the SCEM-PLL are presented to support these claims.
Keywords :
FM modulation/demodulation; PLLs; Phase-locked loop (PLL); Communications Society; Cutoff frequency; Delay effects; Detectors; Filtering; Frequency modulation; Gaussian noise; Low pass filters; Phase detection; Voltage;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/TCOM.1979.1094487
Filename :
1094487
Link To Document :
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