Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal
Patent
1996-07-29
1998-05-19
Ghebretinsae, Temesghen
Pulse or digital communications
Synchronizers
Frequency or phase control using synchronizing signal
375208, 370515, H04L 700
Patent
active
057546037
ABSTRACT:
A method of synchronizing to a pseudo random sequence, which can be generated by a linear feedback shift register having k stages and p intermediate taps, where k and p are positive integers and k>p, and a synchronization arrangement for carrying out the method are described. A received symbol sequence is supplied to a k-stage shift register with p intermediate taps in positions corresponding to the p taps of the linear feedback shift register. A respective correlation signal is recursively added at an input for the received symbol sequence and at each intermediate tap. Each correlation signal is produced by correlating at least two signals from said input, intermediate taps, and output other than the signal to which the respective correlation signal is added. The invention is particularly applicable to pilot synchronization in CDMA terminals.
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patent: 5440597 (1995-08-01), Chung et al.
R. B. Ward et al., "Acquisition of Pseudonoise Signals by Recursion-Aided Sequential Estimation", IEEE Transactions on Communications, vol. COM-25, No. 8, Aug. (1977), pp. 784-794.
R. B. Ward, "Acquisition of Pseudonoise Signals by Sequential Estimation", IEEE Transactions on Communications, vol. COM-13, No. 4, Dec. (1965), pp. 475-483.
Bakulin et al., "An Algorithm for Filtering Linear Recurrent Sequences from a Mixture with Noise" Telecommunications and Radio Engineering, vol. 48, No. 9, May (1995), pp. 119-125.
Bakulin et al., Radiotekhnika, vol. 6, Sep. (1994), pp. 68-74.
Bakouline Mikhail
Chloma Alexandre
Kreindeline Vitali
Li Gang
Thomas Philip H.
Ghebretinsae Temesghen
Northern Telecom Limited
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