GNSS Dual Frequency Compatible Interoperation Receiver Signal Acquisition Method

With the opening of the "global network" of the Beidou navigation and positioning system, the design and implementation of the compatible interoperability of the receiver has become a hot spot in the field of the receiver design. In this paper, aiming at the problems of long processing time, low acquisition precision, large hardware resource consumption and poor compatibility in the design of signal acquisition link of GNSS dual frequency compatible interoperable receiver, a signal capture that can capture GPS, Galileo, GLONASS, BDS signals at the same time, and can capture Doppler frequency offset and code offset quickly, is designed. With the help of Xilinx simulation tool Vivado and its simulation software, the whole capture system is simulated, and the accuracy of the algorithm is verified. In actual engineering verification, this algorithm can better meet the engineering application requirements.