Configurable inertial/ celestial/Beidou multi-integrated navigation system and navigation method thereof

Abstract

The invention discloses a configurable inertial / celestial / Beidou multi-integrated navigation system, which comprises an inertial element, a Beidou receiver and a star sensor, wherein the inertial element, the Beidou receiver and the star sensor transmit data to a navigation computer module, the navigation computer module transmits a navigation calculating result to an upper computer for real-time displaying, and the upper host computer controls the navigation computer module at the same time. The invention further discloses a configurable inertial / celestial / Beidou multi-integrated navigation method, which calculates a main body by means of strapdown inertial navigation, adopts a distributed filtering scheme, and configures different combination modes and filtering time by means of the upper computer. The entire navigation device can select navigation modes such as pure strapdown inertial navigation, inertial / Beidou, inertial / celestial and inertial / celestial / Beidou, thereby facilitating the tailoring of a sensor module and verification of an algorithm. The configurable inertial / celestial / Beidou multi-integrated navigation system and the configurable inertial / celestial / Beidou multi-integrated navigation method can effectively solve the problems of transportability, real-time performance, precision and the like of the navigation method, and provide beneficial reference for the engineering and productizationof teaching, scientific research and multi-integrated navigation systems.

Description

technical field [0001] The invention belongs to the technical field of aircraft integrated navigation, in particular to a configurable inertial / astronomical / Beidou multi-integrated navigation system and a navigation method thereof. Background technique [0002] The Beidou navigation system is a satellite navigation system independently developed by my country, which plays an indispensable role in national defense security and national economy. In addition, in recent years, my country's long-range and long-endurance aircraft have developed rapidly, and long-range and long-endurance aircraft have put forward higher requirements for high precision and high reliability of their navigation systems. Since celestial navigation is free from electromagnetic interference and has high precision, it has its unique Advantage. Therefore, the research on the inertial / astronomical / Beidou integrated navigation method has high military value. [0003] At present, most single-threaded navigat...

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Problems solved by technology

[0003] At present, most single-threaded navigation programs have poor portability, and a lot of material and manpower are wasted in the process of cross-platform porting. The single-threaded mode has low utilization rate of navigation computers, resulting in low real-time performance of navigation solutions.

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