DocumentCode
1224731
Title
An Optimum Squaring Loop Prefilter
Author
Layland, J.
Author_Institution
Jet Propulsion Lab., Pasadena, CA
Volume
18
Issue
5
fYear
1970
fDate
10/1/1970 12:00:00 AM
Firstpage
695
Lastpage
697
Abstract
Squaring loops are often discussed as a means of establishing a coherent carrier reference for bi-phase PSK modulation. The optimal presquaring filter is derived under the assumptions that the modulating spectrum as narrow with respect to the carrier frequency and that the phase-locked loop bandwidth is much narrower than the modulating spectrum.
Keywords
Background noise; Bandwidth; Differential quadrature phase shift keying; Filters; Frequency shift keying; Interference; Phase locked loops; Phase modulation; Phase shift keying; Signal to noise ratio;
fLanguage
English
Journal_Title
Communication Technology, IEEE Transactions on
Publisher
ieee
ISSN
0018-9332
Type
jour
DOI
10.1109/TCOM.1970.1090398
Filename
1090398
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