Patent ID: 7715505

Claim:
A method for synchronization (SYNC) detection of a received serial offset quadrature pulse shaped waveform modulated by a predetermined SYNC sequence of symbols, the method comprising the steps of: a) serially demodulating the received waveform into a serial baseband signal having the same predetermined SYNC sequence of symbols; b) correlating the serial baseband signal with a plurality of segments of the SYNC sequence of symbols to form a plurality of parallel correlated output signals, the plurality of segments forming the predetermined SYNC sequence of symbols; c) combining the parallel correlated output signals to form a combined correlation signal; d) detecting SYNC using the combined correlation signal; e) determining a peak of the combined correlation signal; f) computing correlation strength estimates of each of the parallel correlated output signals; g) adjusting a SYNC threshold level based upon the correlation strength estimates; and h) comparing the peak of step (e) with the SYNC threshold level of step (g) to detect SYNC.