Synchronization techniques and systems for radiocommunication

Details Synchronization techniques and systems for radiocommunication Synchronization techniques and systems for radiocommunication

1997-10-14

2000-10-17

Tsang, Fan

Pulse or digital communications

Synchronizers

Frequency or phase control using synchronizing signal

370509, 370510, 370549, H04L 700

Patent

active

061342866

ABSTRACT:
A method and apparatus for synchronizing and demodulating radio wave signals transmitted in frame format with an unique word, involving correcting the frequency offset of the received signal and differentially correlating the frequency corrected signal with the unique word, A first timing estimate is further refined by a 2-D search between frequency and time and a first frequency estimate is further refined by quadratic interpolation. The finely synchronized signal is demodulated using a Viterbi-based demodulator.

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