Elimination of false-locking in long loop phase-locked receivers

JP McGeehan, JPH Sladen

Research output: Contribution to journalArticle (Academic Journal)peer-review

19 Citations (Scopus)
442 Downloads (Pure)


Although long-loop phase-locked techniques are finding increasing application in the fields of mobile radio and satellite communications, their use has several drawbacks. Time delay associated with filtering processes within the loop gives rise to a degradation in acquisition capability, and information components entering the control loop cause a reduction in adjacent channel performance. In this paper, a split-loop technique is described, which eliminates false-locking, substantially improves the acquisition characteristics to that associated with a loop with zero time delay, and "cleans up" the first local oscillator spectrum. Furthermore, the technique is simple to implement.
Translated title of the contributionElimination of false-locking in long loop phase-locked receivers
Original languageEnglish
Pages (from-to)2391 - 2397
Number of pages7
JournalIEEE Transactions on Communications
Issue number10
Publication statusPublished - Oct 1982

Bibliographical note

Publisher: Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Rose publication type: Journal article

Sponsorship: J Sladen is grateful to the UK Science and Engineering Research Council for the award of a
research studentship.

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  • Phase-locked loop (PLL)


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