| 摘要 |
<p>Phase correlator between a wave having a frequency of F sent out by an oscillator and a useful signal having the same frequency F and having a relative phase phi 0, comprising a first and a second modulator effecting the modulation of the useful signal having a high noise level by the wave out by the oscillator on the one hand through an adjustable phase-shifter of phi and on the other hand through the phase-shifter of phi followed by a fixed phase-shifter of phi 1, an adjusting circuit of phi by the error signal between the two preceding modulation signals coming respectively from two integrators and a third modulator effecting the modulation of the signal having a high noise level by the wave sent out by the oscillator through another phase-shifter of phi 1/2 connected with the phase-shifter.</p> |
