Uplink timing detection for frequency hopping communication

Shane, Morton; Yeh, Hen-Geul; Lui, G.L.; Yamada, Atsushi

doi:10.1109/milcom.1999.821325

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…First, a coarse-time synchronization stage [1] is employed to reduce the timing error to a fraction of a hop. This can be accomplished by periodically transmitting time probe sequences, which allows the receiver to determine whether timing is early or late and send the result to the transmitter [2]. Next, a fine-time synchronization stage (e.g., [3]) reduces the timing error to within a symbol period.…”

Section: Introductionmentioning

confidence: 99%

Hop timing recovery algorithms

Yazdani

List

Hutchenson

et al. 2009

MILCOM 2009 - 2009 IEEE Military Communications Conference

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Communication systems must maintain tight timing synchronization between the transmitter and receiver. Systems typically pull-in timing from a large timing offset and then track timing once it has been sufficiently pulled in. When timing errors are large, additional reference symbols are needed to pull-in time. In some frequency hopping systems, the time pull-in step must be repeated for every hop and could occur many times a second. It then becomes important to develop rapid time pull-in algorithms that can operate on a limited number of data and reference symbols. This paper presents two algorithms for rapid time pull-in. The performance as a function of the number of data and reference symbols is shown.

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Section: Introductionmentioning

confidence: 99%