| 摘要 |
1. Method for resolving phase ambiguity between two demodulated digital signals (i, j) transmitted from a quadriphase modulation and demodulation link by means of two carriers in phase quadrature at the same frequency (F0 ), receiving two initial digital signals (A, B), characterized in that one of the initial digital signals (A) has its rise (or fall) fronts delayed by a fraction (t) of the rhythm period of the signals and in that the phase differences in the rise (or fall) fronts of one of the demodulated signals (i) with the phases of the rise and fall fronts of the other demodulated signal (j) are compared against predetermined values of the order of said fraction (t) and the opposite thereof (-t) in order to invert the two demodulated signals (i, j) or not, or to switch them and invert one of the demodulated signals (i, j) in terms of the phase ambiguity translated by said comparisons. |
