Multi-spectral polarization navigation system with environment adaptability

Abstract

The invention discloses a multi-spectral polarization navigation system with environment adaptability, which is mainly used for polarization spectrum detection of different wavebands in different environments, and aims to improve the environment adaptability of an existing polarization navigation system. The system mainly comprises a light shield, an outside environment sensing module, a satellite navigation module, a self-adaptive, adjustable and multi-spectral light filtration module, a polarization detection sensor module, an inertial navigation module, a wireless data transmission module and a control module; the polarization detection module is a six-channel polarization detection sensor based on a beam splitter prism, and enhanced photovoltaic conversion chip is adopted as a detection chip, so that high-precision polarization information calculation can be performed under optical filters with different wavebands. The self-adaptive, adjustable and multi-spectral light filtration module comprises optical filers with three wavebands of ultraviolet, blue light and green light and can realize automatic switching by analyzing information fed back by the outside environment sensing module and the satellite navigation module.

Description

technical field [0001] The invention relates to a multi-spectral polarization navigation system with environmental adaptability, which belongs to the field of bionic polarization navigation. Background technique [0002] After natural light enters the earth's atmosphere, it will be scattered by particles and dust in the atmosphere, thus forming polarized light in different states. According to the Rayleigh scattering law, ideally, the atmospheric polarization pattern is symmetrically distributed along the solar meridian and the antisolar meridian, although the change of the sun's altitude and azimuth angle with time will cause the movement of the symmetry line, but the atmospheric polarization pattern always maintains symmetry . In 1985, Wehner and Rossel discovered for the first time in their behavioral research on sand ants that they can use this polarized pattern of the sky to navigate, and then people became interested in the polarized vision of creatures, and found tha...

AI Technical Summary

Problems solved by technology

However, the influence of different external environments and geographical locations on polarization information is still not considered

[0004] In short, although the existing technologies can detect polarization information and calculate the polarization azimuth for navigation, they only detect single-band polarization information or full-band polarization information, and do not take into account the influence of different bands of polarized light on polarization detection and calculation accuracy

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