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Verification method of virtual-actual combination test for inter-satellite link of global satellite navigation system

A global satellite navigation and inter-satellite link technology, which is applied in the field of virtual-actual combination test and verification of global satellite navigation system inter-satellite links, can solve problems such as the inability to guarantee the number of GNSS networking nodes, and reduce test costs and The effect of construction risk

Active Publication Date: 2018-06-29
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

Due to the lag in the construction process of the ground segment and the user segment during the test phase, the requirements for the number of GNSS networking nodes cannot be guaranteed

Method used

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  • Verification method of virtual-actual combination test for inter-satellite link of global satellite navigation system
  • Verification method of virtual-actual combination test for inter-satellite link of global satellite navigation system
  • Verification method of virtual-actual combination test for inter-satellite link of global satellite navigation system

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Embodiment Construction

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0042] Such as figure 1 and figure 2 As shown, the global satellite navigation system inter-satellite link virtual-actual combination test verification method of the present invention, according to the GNSS inter-satellite link construction requirements, with a small amount of actual in-orbit satellites and existing ground station resources as the hardware basis, GNSS inter-satellite link The road simulation test and analysis evaluation software platform is used as the software foundation, and the following processes are implemented:

[0043]S1: The satellite with the same function as the satellite in orbit is simulated by the ground station. As a physical virtual star, the measurement and communication link between the virtual star and the satellite in orbit constitutes a physical inter-satellite link; simulate other unidentified s...

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Abstract

The invention relates to a global satellite navigation system inter-satellite link virtual-physical combined test verification method. The method includes the following steps that: S1, satellites with the same function as on-orbit satellites are simulated through a ground station so as to be adopted as physical virtual satellites, measurement and communication links between the physical virtual satellites and the on-orbit satellites constitute physical inter-satellite links, other off-orbit satellites are simulated so as to be adopted as simulation virtual satellites, measurement and communication links between the simulation virtual satellites constitute virtual inter-satellite links; S2, the virtual inter-satellite links and the physical inter-satellite links are integrated so as to form a whole-network operation virtual-physical combined inter-satellite link network; and S3, the virtual-physical combined inter-satellite link network is utilized to perform inter-satellite networking testing, so that the verification of the inter-satellite link networking function and performance of a global satellite navigation system (GNSS) can be completed. With the method of the invention adopted, the construction risk of the system can be reduced, test costs can be reduced, and a test verification effect can be achieved.

Description

technical field [0001] The invention mainly relates to the field of satellite navigation and its application, in particular to a method for verifying the combination of virtual and real links between satellites in a global satellite navigation system. Background technique [0002] Inter-Satellite Link (ISL) is a communication and measurement link connecting satellites, mainly composed of radio transmitting and receiving equipment. The navigation satellite inter-satellite link is used for two-way ranging and specific data exchange between navigation satellites, which can effectively solve the problem of limited station deployment of the GNSS system, and improve the reliability and anti-destructiveness of the GNSS system, thereby enhancing the survivability of the system . The world's major satellite navigation system providers, GPS of the United States, GLONASS of Russia, Galileo of Europe and Beidou satellite navigation system of China are all actively developing the inter-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/23H04L12/24
CPCG01S19/23H04L41/145
Inventor 杨俊黄文德郭熙业冯旭哲陈建云周永彬
Owner NAT UNIV OF DEFENSE TECH
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