Satellite navigation integrity monitoring device based on carrier phase and application method of device

Abstract

The invention discloses a satellite navigation integrity monitoring device based on a carrier phase and an application method of the device and belongs to the technical field of satellite navigation positioning. The device comprises a user satellite navigation receiver, a reference satellite navigation receiver, a data preprocessing unit, a real-time integer ambiguity revolving unit based on integrity constraint, an integrity monitoring processing unit based on C-RAIM (Carrier Phase-Receiver Automatic Integrity Monitoring) and a dynamic navigation resolving unit based on Kallman filtering. At present, home and abroad satellite navigation integrity monitoring technologies are mostly based on pseudo range observation, carrier phase observation is necessary in the field of high-precision satellite navigation, while the research on a satellite navigation integrity monitoring technology based on the carrier phase is rare. Compared with the prior art, the device disclosed by the invention can be used for obviously improving the navigation accuracy and integrity at the same time and has great significance in the field of high-performance navigation.

Description

technical field [0001] The invention relates to a satellite navigation integrity monitoring device based on carrier phase and a method applied to the device, belonging to the technical field of satellite navigation integrity monitoring. Background technique [0002] Global Navigation Satellite System (GNSS) plays an indispensable role in today's national economy and national defense construction, and is an important development direction in the field of navigation and positioning. GPS in the United States and GLONASS in Russia have been in operation for many years and are providing global satellite signals around the clock. At present, the United States is actively promoting the modernization of GPS, and plans to develop GPS into a three-frequency observation system; based on factors such as national security and the autonomy of the navigation system, Russia has also decided to continue to maintain the normal operation of GLONASS, and develop new satellites to develop a new ...

AI Technical Summary

Problems solved by technology

At the same time, based on carrier phase navigation, real-time ambiguity resolution is the key to carrier phase navigation. This has always been a hot issue in the field of satellite navigation, but the current technology rarely pays attention to its integrity and cannot meet the needs of high integrity navigation.

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