The course correction implementation of the inertial navigation system based on the information from the aircraft satellite navigation system before take-off

International Conference on Mechanical Engineering, Automation and Control Systems 2015

机械制造;无线电电子学;计算机科学

Markelov, V.^1 ; Shukalov, A.^2 ; Zharinov, I.^2 ; Kostishin, M.^2 ; Kniga, I.^1

SPb Scientific Design Bureau 'Electroavtomatica' by P A Efimova, 40, Marshala Govorova st., Saint-Petersburg

198095, Russia^1

Saint Petersburg National Research University of Information Technologies, Mechanics and Optics, 49, Kronverkskiy ave., Saint-Petersburg

197101, Russia^2

关键词: Attitude and heading reference systems;    Computational system;    Course correction;    Inertial navigation systems (INS);    Satellite navigation systems;    Statistical evaluation;    Time interval;    Track errors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/124/1/012020/pdf
DOI  :  10.1088/1757-899X/124/1/012020

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The use of the correction course option before aircraft take-off after inertial navigation system (INS) inaccurate alignment based on the platform attitude-and-heading reference system in azimuth is considered in the paper. A course correction is performed based on the track angle defined by the information received from the satellite navigation system (SNS). The course correction includes a calculated track error definition during ground taxiing along straight sections before take-off with its input in the onboard digital computational system like amendment for using in the current flight. The track error calculation is performed by the statistical evaluation of the track angle comparison defined by the SNS information with the current course measured by INS for a given number of measurements on the realizable time interval. The course correction testing results and recommendation application are given in the paper. The course correction based on the information from SNS can be used for improving accuracy characteristics for determining an aircraft path after making accelerated INS preparation concerning inaccurate initial azimuth alignment.