Synchronization recovery in a communications system

Details Synchronization recovery in a communications system Synchronization recovery in a communications system

H - Electricity

04

L

363/17, 340/205,

H04L 7/08 (2006.01) H04L 7/04 (2006.01) H04N 7/083 (2006.01)

Patent

CA 1288520

SYNCHRONIZATION RECOVERY IN A COMMUNICATIONS SYSTEM ABSTRACT OF THE DISCLOSURE Synchronization between a transmitter and a receiver is effected by encoding and transmitting a synchronization pulse as a series of m first waveforms followed by a series of n second waveforms. The first and second waveforms are of the same duration and are trans- mitted in phase with each other; and m and n are positive real num- bers, with m greater than one. The second waveform is different from, and preferably negatively correlated with, the first. When the receiver detects a series of first waveforms in the received signal, it locally generates a series of (either first or second) waveforms and correlates the locally-generated signal with the received signal. A change in cor- relation is detected as the synchronization pulse.

502320

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