Questions of spacecraft laser pulses registration accuracy with the use of the onboard query-free quantum-optical system

The authors present the materials of development of prototype of on-board query-free quantum-optical system. For solution of this problem a time intervals measuring instrument with two-stage phase alignment system was designed. Testing of prototype of the on-board query-free quantum-optical system was conducted autonomous and within the spacecraft "Glonass". The authors reveal the factors affecting the accuracy of registration of the laser pulse in the onboard time scale; estimate of the error of pulse detection. With the use of the instrumentality of the on-board query-free quantum-optical system we can describe accuracy and stability of the on-board synchronizer blocks and make comparative measurements of ground central synchronizers of GNSS GLONASS and on-board synchronizers, as well as measurements of ground central synchronizers including synchronizers spaced within one continent or intercontinentally.