Frame phase estimation method and circuit

Details Frame phase estimation method and circuit Frame phase estimation method and circuit

1991-02-04

1992-08-18

Safourek, Benedict V.

Pulse or digital communications

Spread spectrum

Direct sequence

36472803, H04L 708

Patent

active

051406179

ABSTRACT:
A frame phase estimation method and circuit for estimating the phase of a received digital signal in which the lead phase of the received signal is successively delayed by an amount equal to a sample period of the signal, cross-correlation values for each delayed signal with respect to a known transmission pattern are calculated, and a predetermined number of cross-correlation values of subsequent phases are added to the cross-correlation value of each initial phase. The true initial phase of the signal is estimated to be the initial phase corresponding to the maximum sum of cross-correlation values.

REFERENCES:
patent: 3575554 (1971-04-01), Schmidt
patent: 5016206 (1991-05-01), Shinonaga

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