Pulsar navigation technology is an important technology in the construction of national integrated positioning and navigation timing (PNT) system. It can provide high-precision autonomous navigation service and high stable time-frequency reference. High precision pulsar signal propagation model is the prerequisite for realizing high-precision navigation and high stability pulsar time. In view of the inconsistency of existing pulsar observation models and the need to expand the application scope of pulsar navigation and time service to deep space, under the framework of general relativity, through the geometric. The gravitational delay formula of pulsar signal under the second-order post Newton effect in the solar system is analyzed and deduced, and a universal pulsar observation model in the solar system is established. According to the influence magnitude of various time delays, a simplified observation model in near earth space with accuracy better than 1ns is obtained.
A Relativistic Model of X-Ray Pulsar Signal for Navigation
Lect. Notes Electrical Eng.
China Satellite Navigation Conference (CSNC 2022) Proceedings ; Kapitel : 38 ; 433-441
05.05.2022
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Pulsar navigation , Timing model , Relativistic effect , Gravitational delay , Millisecond pulsar Signal, Image and Speech Processing , Computer Applications , Engineering , Aerospace Technology and Astronautics , Control, Robotics, Mechatronics , Geography, general , Communications Engineering, Networks
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