A transfer alignment system aided by polarized light navigation

Abstract

The invention discloses a polarized light navigation assisted transmission alignment system, which comprises a polarized light navigation sensor, a polarized light navigation data processing module and an umbilical cable connector connected in sequence, the umbilical cable connector and the umbilical cord of the aircraft The cable is connected, and the transfer alignment system is placed on the launch pylon of the aircraft. The polarized light navigation heading angle is consistent with the longitudinal direction of the launch pylon, and the installation angle between the longitudinal direction of the launch pylon and the main inertial navigation of the aircraft is an arbitrary value; The optical navigation data processing module is used to receive the navigation data information of the main inertial navigation of the aircraft, receive the sensing signal of the polarized light navigation sensor and solve it to obtain the heading angle of the polarized light navigation, and then use the navigation data information of the main inertial navigation of the aircraft and the polarized light navigation The heading angle constructs the navigation data information of the virtual main inertial navigation, and uses the navigation data information of the virtual main inertial navigation to carry out the air transfer alignment of the sub-inertial navigation of the air-launched aircraft, so as to realize the air launch of the air-launched aircraft.

Description

technical field [0001] The invention belongs to the technical field of polarized light navigation, and more particularly relates to a transfer alignment system assisted by polarized light navigation. Background technique [0002] Polarized light navigation is a new type of navigation. Its original prototype is a polarized light compass made by the ancients using natural minerals (calcite, potassium feldspar, etc.). One of the available navigation devices. In recent decades, scientists have used the principle of animal bionics to develop a more complete and excellent polarized light navigation instrument. When combined with inertial navigation and GNSS satellite navigation, the navigator has a certain degree of orientation and positioning capabilities. [0003] Cutting-edge research results show that the accuracy of polarized light navigation sensors is better than 0.1°, and the north-finding accuracy after combining with inertial navigation can reach ±1° level, and the posi...

AI Technical Summary

Problems solved by technology

[0004] However, in the transfer alignment process of the above scheme, the misalignment angle error between the main inertial navigation of the aircraft and the sub-inertial navigation of the air-launched aircraft must be controlled at about 1°. The air-launched aircraft includes various types of aircraft launched from the aircraft, etc. That is, the initial state of the air-launched aircraft on the aircraft can only be launched in the direction of the nose. Taking the aircraft’s backward-launched aircraft as an example, it can only be launched forward and then turned 180°, which not only delays the reflection time and consumes more fuel. , and the guidance and control are very complex and difficult

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