GPS Time System and its Application in Time Transfer Technology

Abstract

Time is the core of GPS satellite navigation system, and time service is one of the basic functions of the GPS system. The application of GPS technology in time service is more and more extensive, basing on its high accuracy, real-time, good continuity, low cost, etc.. In this paper, firstly, the building and maintaining of GPS time system is summarized, then GPS time service technology and GPS time transfer technology and their practical application in society is illustrated furtherly, secondly the prospects of GPS in time service technology and time transfer technology are discussed. With the development of GPS system performance and data processing technology, its application in time-frequency domain will widen continuously, which has important society significance for country's economic construction, national security and scientific research, etc.