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Method for testing double-satellite GPS closed-loop control

A closed-loop control and test method technology, applied in the field of systematic verification of satellite relative positioning, to achieve the effect of avoiding limitations, good flexibility, and real test methods

Active Publication Date: 2013-08-21
AEROSPACE DONGFANGHONG SATELLITE
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Problems solved by technology

[0003] The technical solution problem of the present invention is: to overcome the deficiencies of the prior art, provide a kind of GPS real-time positioning method, solve the technical problem that the double star can only be verified by fixed point data in the current test technology

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  • Method for testing double-satellite GPS closed-loop control

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Embodiment Construction

[0023] The invention utilizes the remote control mode of the GPS dynamic emulator to propose a brand-new GPS closed-loop control method. This method makes up for the deficiencies of the static method and dynamic method in the current test, realizes the closed-loop control of multi-satellites in full real-time state, breaks the current verification method of closed-loop control using fixed orbit scenarios, and is effective for multi-satellite relative positioning systems. verified. The GPS real-time relative positioning data closed-loop system can receive the orbit data output by the GNC subsystem in real time, forward it to the GPS emulator in real time according to a fixed data format to generate GPS radio frequency signals, and provide simulation scene support for the RGPS receiver, so as to realize GPS measurement information and Real-time self-closed-loop control of orbit parameters of GNC subsystem.

[0024] The orbit simulation computer includes satellite simulation orb...

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Abstract

A method for testing double-satellite GPS closed-loop control is achieved on the basis of an orbit emulation computer, a GPS synchronous computer and a GPS dynamic emulation device. A novel GPS closed-loop control method is provided by utilizing a remote control model of the GPS dynamic emulation device and makes up for the defects of a static method and a dynamic method in a present test, the closed-loop control of multi-satellites under a completely real-time state is achieved, an existing verification mode for the closed-loop control through a fixed orbit scene is broken, and a multi-satellite relative positioning system is verified.

Description

technical field [0001] The invention relates to a double-satellite GPS closed-loop control test method, which is especially suitable for systematic verification of high dynamic and high-precision satellite relative positioning. Background technique [0002] In the current satellite test, there are mainly two test methods, static test and dynamic test, to verify the positioning function of GPS. These two methods still have certain deficiencies in the closed-loop control of satellites. The static test is to connect the GPS receiver directly to the outdoor antenna, and use the public satellite navigation system to perform positioning test on the GPS receiver. This method is relatively stable and the data reliability is high, but it cannot verify the GPS receiver in the high-speed movement of the satellite. work situation. In order to solve this problem, a dynamic test of the GPS receiver is introduced. The dynamic test is to use the GPS dynamic emulator to set the orbit data ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/23
Inventor 李响孙骥任广伟左莉华熊亮申珉珉张明
Owner AEROSPACE DONGFANGHONG SATELLITE
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