The paper discusses errors of electronic angular velocity and linear acceleration sensors (used in attitude and heading reference systems and inertial navigation systems applied in civil and military aviation) and their impact on the errors of calculated flight-navigation parameters (such as spatial orientation angles and navigational position coordinates). A mathematical model for determining these errors, developed at ITWL, is presented, enabling the determination of their profiles depending on the values of the spatial orientation angles of the measuring unit. Selected issues regarding the optimization of these errors in avionics systems integrated on the basis of a digital data bus according to the MIL-STD-1553B standard were analyzed. The research base of the ITWL Avionics Research Laboratory and the possibilities for analyzing and correcting errors of sensors used in inertial navigation systems are presented. The implementation of this topic was accepted for funding by the Ministry of Science and Higher Education as part of a development research project.
ISSUES WITH THE OPTIMISATION OF ERRORS OF INERTIAL DATA SENSORS IN HELMET-MOUNTED DISPLAY SYSTEMS USED IN AIR TRANSPORT SYSTEMS
Abstract
The paper has been intended to discuss errors of angular-velocity and linear acceleration electronic sensors (included in the attitude/heading reference systems and inertial navigation systems used in both civil and military aviation) and how they affect computational errors of flight-management/navigation data such as attitude angles and coordinates of a navigational fix. The in the paper presented mathematical model of determining these errors has been developed in ITWL. It facilitates determination of how these errors change depending on changes in values of attitude angles shown by the measuring equipment. Some selected issues with the optimisation of these errors in avionic systems integrated on the basis of a digital data bus following the MIL-STD-1553B standard have been analysed.
Presented are the research/testing facilities of the ITWL’s Division for Avionics and capabilities thereof to correct errors of sensors used in the inertial navigation systems. This project has been financed by the Ministry of Science & Higher (…)
The article contains 29187 characters.
Source: Logistyka Magazine
Integrated avionics systems, helmet-mounted display systems – PDF file for download