Pseudocode-based laser time-frequency transfer tracking module design

High-precision time-frequency technology transfer is key to positioning and navigation, high-speed communication, and other fields. The time transfer technology based on high-speed pseudo-code is a kind of time-frequency transfer technology with large development potential, and the tracking of high-speed pseudo-code is the basis for the development of this technology. In this paper, to meet the needs for code tracking loop and carrier tracking loop in signal tracking, we analyze the phase identification method and loop filtering method of the loop, respectively, design the signal tracking loop for the characteristics of the pseudo-code signal, and establish the simulation analysis model through simulation tools. The simulation analysis result shows that the design of the loop is able to meet the tracking requirements of the signal and provide data support for the hardware simulation.