Kalman Filter System in Integrated Modular Avionics System

Abstract

The invention relates to a Kalman filtering system in a comprehensive modularized avionics system. The Kalman filtering system comprises a model management module, a Kalman filtering calculation module, an output result management module and an inquiry decomposing module, the Kalman filtering calculation module performs Kalman filtering calculation according to model-related data provided by the model management module, the output result management module stores iterative calculation results of the Kalman filtering calculation module, and the inquiry decomposing module sends inquiry requests to the output result management module to acquire needed data according to needs of each subsystem in the avionics system. The unified Kalman filtering system is used to provide Kalman filtering service for each subsystem, so that code amount of the system is reduced, reliability of the system is improved to some extent, and utilization rate of calculation resources of the system is increased.

Description

technical field [0001] The present invention relates to an integrated method in an avionics system, in particular to a Kalman filtering system in an integrated modularized avionics system and its realization method. Background technique [0002] Integrated Modular Avionics (Integrated Modular Avionics, IMA) is a new avionics architecture after the joint avionics architecture. The feature of this architecture is to realize the sharing and reuse of resources, thereby greatly reducing the cost and weight of the avionics system. The implementation of the IMA architecture requires a lot of synthesis, especially functional synthesis. The main difficulty in functional synthesis lies in how to maximize the reuse of functional modules and the sharing of information and data. In the avionics system, such as navigation subsystem, radar tracking subsystem, infrared tracking subsystem, etc., the Kalman filter function will be used. Each subsystem generally has its own independent Kalma...

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Problems solved by technology

[0003] In view of the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a Kalman filter system in an integrated modular avionics system, which solves the problem of sharing the Kalman filter module of each subsystem in the IMA function synthesis process and the problems in the filtering process. The problem of data sharing in the process

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