Improve circuit structure of satellite puppet apart from precision

The utility model relates to an improve circuit structure of satellite puppet apart from precision, this circuit structure include first detector, carrier wave NCO, sign indicating number NCO, C sign indicating number generator, a shift register, P sign indicating number generator, the 2nd shift register, switching circuit, I branch road correlator, Q branch road correlator, total mark and zero clearing module and treater, total mark and zero clearing module are connected with treater and I branch road correlator and Q branch road correlator respectively, realize the switching between C sign indicating number and the P sign indicating number through the switching circuit. Adopt the improve circuit structure of satellite puppet apart from precision of this kind of structure, can carry out C sign indicating number and P code signal simultaneously and trail, catch and trail the dorsal radix and start and switch to the P sign indicating number according to time information control P sign indicating ...