Verification method and system for vertical returning vehicle landing period differential satellite navigation experiment

Abstract

The invention puts forward a verification method and system for a vertical returning vehicle landing period differential satellite navigation experiment, and belongs to the technical field of navigation. The verification method for the vertical returning vehicle landing period differential satellite navigation experiment adopts a navigation receiver, a common measurement antenna and a radio station to set up a ground temporary base station; a satellite navigation receiver carried by a rotor craft, an aerial survey antenna and a radio station are used for simulating the landing period flight ofthe vertical returning vehicle; through the ground temporary base station, a differential correction amount is calculated and is sent to navigation equipment on the rotor craft to be subjected to satellite navigation differential solution; through an external measurement device, field calibration is carried out; and through two high-speed cameras, the practical flight trajectory of the rotor craft is measured for checking differential satellite navigation accuracy. The verification method has the characteristics of being simple, low in cost and high in reliability.

Description

technical field [0001] The invention belongs to the technical field of navigation, in particular to a method and system for testing and verifying a differential satellite navigation in the landing section of a vertical return vehicle. Background technique [0002] The vertical return vehicle is an important direction for the development of vehicles in my country and even the world. The final flight stage, especially the landing stage, has extremely high requirements for navigation accuracy. However, it is difficult for the current commonly used navigation technology to provide decimeter-level or even sub-level accuracy for the landing stage of the vehicle. Decimeter-level positioning accuracy. According to the analysis of the principle and development status of differential satellite technology, differential satellite navigation technology is a feasible means to improve the final navigation accuracy of the vertical return vehicle, especially the navigation accuracy of the lan...

AI Technical Summary

Problems solved by technology

[0002] The vertical return vehicle is an important direction for the development of vehicles in my country and even the world. The final flight stage, especially the landing stage, has extremely high requirements for navigation accuracy. However, it is difficult for the current commonly used navigation technology to provide decimeter-level or even sub-level accuracy for the landing stage of the vehicle. Decimeter-level positioning accuracy

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