| 摘要 |
PURPOSE:To perform phase control without receiving any influence from an AGC circuit by simultaneously selecting a CW signal and fixing the operation of the AGC circuit at the time of phase control. CONSTITUTION:In order to correct a phase lag, a CE signal CW1 is supplied to the input of one of convolvers 1 and 2 by switching a switch 5 to a contact I2 side and the 1st and 2nd PN codes are switched to DC bias voltages. Simultaneously, with the switching of the switch 5 to the contact I2 side, another switch 15 is switched to a contact G2 side and gains of amplifiers 8 and 8' are fixed by a set signal CS. Therefore, the operation of an AGC circuit can be fixed and phase control can be performed properly. |
