A Simulation Method for Integrity Faults of Satellite-Based Augmentation System

Abstract

The invention provides a satellite-based augmentation system integrity fault simulating method which belongs to the satellite-based augmentation technology field of satellite navigation. The method comprises the steps of 1, configuring a station satellite for simulation and a fault parameter through a man-machine interaction module; 2, according to the configured station satellite parameter, introducing the true observation file and the navigation file of a monitoring station selected by a user and a user station in a preset time by a data introducing module; 3, generating the fault of a corresponding type by a fault generating module according to the configured fault parameter in the step 1, calculating the influence of the fault to observation data, and adding the fault into the observation data; and 4, outputting the observation data with the added fault according to an RINEX format by the data output module. According to the method of the invention, through inputting the actually measured data and adding various integrity faults as simulating events, and outputting the processed data to a subsequent SBAS processing module, a settlement thought is supplied for Chinese Beidou SBAS integrity monitoring capability testing and verification.

Description

technical field [0001] The invention belongs to the technical field of satellite navigation satellite-based augmentation, and in particular relates to a fault simulation method for the integrity of a satellite-based augmentation system. Background technique [0002] At present, the main core constellations of the global navigation satellite system (GNSS) include the global positioning system (GPS) of the United States, the global navigation satellite system (GLONASS) of Russia, and the Galileo positioning system of the European Union. and China's Beidou navigation system. Augmentation systems were developed because the core constellation alone cannot meet the accuracy and integrity requirements of aviation users. Augmentation systems include satellite-based augmentation systems, space-based augmentation systems and ground-based augmentation systems. Among them, the satellite-based augmentation system has a wide coverage and has more advantages in aviation and navigation ap...

AI Technical Summary

Problems solved by technology

[0018] The present invention aims at the problem that the GNSS simulation software of the current satellite-based augmentation system only has functions such as positioning and calculation, lacks an integrity fault simulation module, and is difficult to support the testing and research of the integrity monitoring method, and proposes a satellite-based augmentation system integrity Fault Simulation Method

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