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Journal ArticleDOI

A BPSK/QPSK Timing-Error Detector for Sampled Receivers

F. Gardner
- 01 May 1986 - 
- Vol. 34, Iss: 5, pp 423-429
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TLDR
A simple algorithm for detection of timing error of a synchronous, band-limited, BPSK or QPSK data stream is proposed and derivation of the s curve reveals a sinusoidal shape.
Abstract: 
A simple algorithm for detection of timing error of a synchronous, band-limited, BPSK or QPSK data stream is proposed. The algorithm requires only two samples per symbol for its operation. One of the two samples is also used for the symbol decision. Derivation of the s curve reveals a sinusoidal shape.

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Citations
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Proceedings ArticleDOI

On a timing recovery technique for a variable symbol rate signal

Jong Youl Lee, +2 more
TL;DR: A variable-rate timing recovery technique which does not require a priori knowledge on the symbol rate is proposed and estimates the unknown symbol rate with an accuracy of 99.5%.
Proceedings ArticleDOI

Digital timing recovery combined with adaptive equalization for optical coherent receivers

Zhou Xian, +5 more
TL;DR: In this paper, an adaptive butterfly-structured equalizer was proposed for all-digital timing recovery in a synchronous coherent receiver, which can complete synchronization, equalization and polarization de-multiplexing simultaneously without any extra computational cost.
Proceedings ArticleDOI

Frequency-Domain Clock Phase Detector for Nyquist WDM Systems

Kuang-Tsan Wu, +1 more
TL;DR: A novel frequency-domain clock phase detector is proposed for Nyquist WDM signals generated using very small raised-cosine roll-off factor and the jitter is shown to be lower than the time-domain approach and independent of the roll-offs factor.
Patent

Clock recovery apparatus

Fabian Nikolaus Hauske, +1 more
TL;DR: In this article, the authors proposed a clock recovery apparatus that is configured to recover clock information from an input signal by transforming the input signal into a frequency domain signal upon the basis of a Fourier transform, and correlating means are used to correlate the frequency domain signals to obtain a correlation value associated with a certain frequency.
Journal ArticleDOI

Self-noise performance of zero-crossing and Gardner synchronisers applied to one/two-dimensional modulation schemes

Wilfried Gappmair
- 16 Aug 2004 - 
TL;DR: Using two samples per symbol, the auto-covariance function of raised cosines is derived in closed form for one/two-dimensional signal constellations and applied to the computation of the self-noise variance for feedback symbol-timing recovery with zero-crossing and Gardner detectors.
References
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Journal ArticleDOI

Timing Recovery in Digital Synchronous Data Receivers

K. Mueller, +1 more
- 01 May 1976 - 
TL;DR: A new class of fast-converging timing recovery methods for synchronous digital data receivers is investigated, and a general method is outlined to obtain near-minimum-variance estimates of the timing offset with respect to a given steady-state sampling criterion.
Book

Telecommunication systems engineering

William C. Lindsey, +1 more
TL;DR: This classic graduate- and research-level texty by two leading experts in the field of telecommunications is essential reading for anyone workign today in space and satellite digital communicatiions and those seeking a wider background in statistical communication theory and its applications.
Journal ArticleDOI

Carrier and Bit Synchronization in Data Communication--A Tutorial Review

L. Franks
- 01 Aug 1980 - 
TL;DR: This paper examines the problems of carrier phase estimation and symbol timing estimation for carrier-type synchronous digital data signals, with tutorial objectives foremost.
Journal ArticleDOI

Statistical Properties of Timing Jitter in a PAM Timing Recovery Scheme

L. Franks, +1 more
- 01 Jul 1974 - 
TL;DR: A new technique is presented for evaluating the performance of a popular type of timing recovery circuit for baseband synchronous pulse amplitude modulation (PAM) data signals and expressions for rms phase fluctuation in the timing wave are presented.
Journal ArticleDOI

Timing Recovery in Digital Subscriber Loops

O. Agazzi, +3 more
- 01 Jun 1985 - 
TL;DR: Emphasis is on those techniques that lend themselves to implementation in MOSLSI technology, where the objective requirement is that timing recovery be implemented on a sampled-data signal (with the minimum possible sampling rate where EC is used).