DocumentCode :
784606
Title :
Digital Phase Control Techniques
Author :
Westlake, P.
Author_Institution :
Jet Propulsion lab., California Inst. Tech., Pasedena, CA, USA
Volume :
8
Issue :
4
fYear :
1960
fDate :
12/1/1960 12:00:00 AM
Firstpage :
237
Lastpage :
246
Abstract :
An analysis of a partially digitized phase-locked loop using Z -transform sampled data theory is presented. Responses are obtained at various junctions of the loop for both a step frequency input and for a sinusoidal frequency input. These responses are compared with the corresponding responses for an analog phaselocked loop. Stability criterion and root locus are determined. Effects of quantization are studied. It is concluded that over most of the range of operation the behavior of the digital phase-locked loop is nearly identical to the corresponding analog phase-locked loop, but that in addition, certain possible advantages may occur as a result of the digitization.
Keywords :
Bibliographies; Channel capacity; Error correction; Frequency; Instruments; Phase control; Phase detection; Phase locked loops; Signal to noise ratio; Tracking loops;
fLanguage :
English
Journal_Title :
Communications Systems, IRE Transactions on
Publisher :
ieee
ISSN :
0096-2244
Type :
jour
DOI :
10.1109/TCOM.1960.1097643
Filename :
1097643
Link To Document :
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