Abstract
Because the accuracy of the existing airborne navigation is lacking in the polar region, it is difficult to ensure the safety and reliability of the aircraft when it is flying over the polar region. The integrated navigation system based on the inertial navigation technology uses multi-information fusion to assist collaborative navigation and obtain an indirect grid navigation algorithm that combines the azimuth navigation algorithm and the grid navigation algorithm to solve the existing problems. This paper analyzes the principle of the inertial navigation system in the polar region, the semiphysical simulation experiments are carried out by using the navigation theory and the background engineering, and the accuracies of the integrated navigation system of the indirect grid frame in the polar region and the integrated navigation system in the middle and low latitudes are consistent, which verifies the feasibility and effectiveness of the SINS/CNS/GPS integrated navigation system in the polar region. In addition, the paper provides the theoretical basis and the application of engineering to achieve the SINS/CNS/GPS integrated navigation system in the polar region.
Highlights
Since the 1990s, China has substantively participated in Arctic affairs, carried out extensive Arctic activities, and become a major active country in the Arctic
Guo and Hu [8] put forward the corresponding countermeasures in the impact of the Arctic waterway on the world strategic, the opportunities, and challenges, and, in the paper, a variety of geopolitical strategies are planned for reference or implementation in dealing with the Arctic route disputes
E paper investigates and researches the application requirements and suggestions of domestic inertial navigation system, it is agreed that the navigation in the polar region is a basic technical bottleneck for China to move from a big aviation country to a power aviation country, and it is an important technical for opening the safe passage of polar air corridor
Summary
CGe CGg Cge ⎡⎢⎢⎢⎢⎢⎢⎢⎢⎣ sin σ cos σ 0 ⎤⎥⎥⎥⎥⎥⎥⎥⎥⎦⎡⎢⎢⎢⎢⎢⎢⎢⎢⎣ −sin L cos λ −sin L sin λ cos L ⎤⎥⎥⎥⎥⎥⎥⎥⎥⎦. Cos L cos λ cos L sin λ sin L e grid inertial system is recorded. E velocity and the azimuth of the wandering azimuth inertial arrangement in the polar region are projected to the grid inertial system by the relationship between the wandering azimuth inertial system and the grid inertial system to obtain the attitude information of the CNS, position information of the GPS, and velocity position information of the GPS. E other navigation channel only performs the grid inertial arrangement when the aircraft is in the polar region and performs decoupling transformation of the wandering azimuth inertial arrangement and the grid inertial arrangement. E grid inertial system of the point P, where a body of aircraft is located, is the horizontal coordinate system. E grid inertial system of the point P, where a body of aircraft is located, is the horizontal coordinate system. erefore, the horizontal component of ωGeG is
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