Satellite signal simulation system and method capable of realizing real-time regeneration
A technology of satellite signal and analog system, which is applied in the field of navigation to achieve the effect of improving work efficiency
Pending Publication Date: 2022-03-18
GUILIN UNIV OF ELECTRONIC TECH
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[0004] The purpose of this application is to provide a satellite signal simulation system and method that can be reproduced in real time, aiming to solve the problems of satellite signal coverage and satellite timing in complex environments
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[0031] In order to make the purpose, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0032] In order to illustrate the technical solutions described in this application, specific examples are used below to illustrate.
[0033] see figure 1 The real-time reproducible satellite signal simulation system provided by an embodiment of the present application includes a satellite signal acquisition and analysis module 11, a satellite signal simulation module 12, a D / A module 13, a radio frequency module 14 and a transmission module 15, which are electrically connected in sequence. The satellite signal simulation system further includes a clock taming mo...
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The invention is suitable for the field of navigation, and provides a real-time regeneration satellite signal simulation system and method. The system comprises a satellite signal acquisition and analysis module, a satellite signal simulation module, a D / A module, a radio frequency module, a transmitting module and a clock taming module. The satellite signal acquisition and analysis module acquires satellite signals, analyzes real-time satellite ephemeris information and positioning coordinates, and outputs second pulse signals. The satellite signal simulation module receives the second pulse signal, processes the second pulse signal to obtain clock taming data, and controls the clock taming module to complete clock taming according to the clock taming data; and according to the real-time satellite ephemeris information, real-time simulation and time synchronization of the satellite signal under the current coordinate are completed, and a real-time regenerated digital satellite intermediate frequency signal is output. The real satellite signal under the current user coordinate can be simulated in real time, and the problems of satellite signal coverage and satellite time service in a complex environment are solved.
Description
technical field [0001] The application belongs to the field of navigation, and in particular relates to a real-time reproducible satellite signal simulation system and method. Background technique [0002] With the continuous development of navigation and positioning technology, countries have invested a lot of manpower and material resources to develop their own independent navigation satellite system. significant effect. There are currently four major navigation and positioning systems in the world, namely the Global Positioning System (Global Positioning System, GPS) of the United States, the BeiDou Navigation Satellite System (BDS) of China, and the Global Navigation Satellite System (Global Navigation Satellite System) of Russia. , GLONASS) and the European Galileo satellite navigation system (Galileo satellite system, Galileo). [0003] In practical applications, when the number of visible satellites is small and the geometric distribution of satellites is not good d...
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Login to View More IPC IPC(8): G01S19/46G01S19/25
CPCG01S19/46G01S19/256
Inventor 纪元法高金鹏孙希延郭宁付文涛吴传宇赵松克李晶晶李龙
Owner GUILIN UNIV OF ELECTRONIC TECH