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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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Proceedings ArticleDOI

Telesonar Testbed Instrument Provides a Flexible Platform for Acoustic Propagation and Communication Research in the 8 – 50 kHz Band

Vincent K. McDonald, +1 more
TL;DR: The design and features of this instrument, originally designed five years ago to specifically support the Telesonar Program at the Space and Naval Warfare Systems Center, San Diego, are described and six carrier estimation and six symbol timing estimators are applied to data received in the KauaiEx and ElbaEx Experiments.
Proceedings ArticleDOI

256 Gb/s PM-16-QAM quasi-single-mode transmission over 2600 km using few-mode fiber with multi-path interference compensation

Qi Sui, +9 more
TL;DR: This work experimentally demonstrates 256 Gb/s PM-16-QAM transmission up to 2600 km by using 100-km spans of few-mode fibers operating in quasi-single-mode transmission and using a DD-LMS algorithm to compensate multi-path interference (MPI).
Proceedings ArticleDOI

Synchronization for QDPSK —Costas loop and Gardner algorithm using FPGAs

Jie Hua, +3 more
TL;DR: The mathematical model is discussed and the physical verification when Carrier synchronization (carrier loop) and Timing synchronization (Gardner algorithm) working simultaneously is implemented when both of them are active.
Proceedings ArticleDOI

Controlled adaptive equalization for dual-polarization coherent receivers with simple clock recovery

Lei Liu, +5 more
TL;DR: A novel controlled adaptive equalization scheme for dual-polarization coherent receivers is presented and data asynchronous operation is demonstrated that ultimately allows for simple clock recovery implementation.
Proceedings ArticleDOI

Filter coefficient interpolated timing recovery in sampled coherent PSK receivers

Peter J. McLane, +2 more
TL;DR: To improve timing resolution over that provided by oversampling and decimation alone, the concept of filter coefficient interpolation is evaluated for a steam transmission, coherent, Nyquist-filtered, binary-PSK (BPSK) modem.
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).