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 contribution||Elimination of false-locking in long loop phase-locked receivers|
|Pages (from-to)||2391 - 2397|
|Number of pages||7|
|Journal||IEEE Transactions on Communications|
|Publication status||Published - Oct 1982|
Bibliographical notePublisher: 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
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- Phase-locked loop (PLL)