Bionic navigation method and navigation positioning system based on remote sensing sky polarization mode patterns

Abstract

The invention relates to a bionic navigation method and a navigation positioning system based on remote sensing sky polarization mode patterns. The method comprises the following steps: simultaneously measuring three images of light intensity of sky light by adopting a full-sky polarization remote sensing measurement method, and solving a polarization degree and a polarization azimuth angle which describe the polarization state of the sky light, thereby obtaining the remote sensing sky polarization mode patterns; analyzing each influence factor of the polarization degree and polarization azimuth angle in the remote sensing sky polarization mode patterns by adopting a full-sky polarization light measurement method, thereby obtaining the external conditions which are most suitable for polarization navigation; solving the sun azimuth angles at different time by combining celestial navigation theory knowledge, and amending the included angle between the sun meridian and a carrier by utilizing the sun azimuth angles, thereby obtaining a course angle taking geographical north and south as the reference directions; and processing the polarization navigation blind spot by adopting the combined navigation mode of a GPS (global positioning system) navigation mode and a polarization navigation mode. The bionic navigation method and navigation positioning system based on remote sensing sky polarization mode patterns can be widely applied to the measurement and research of navigation positioning under different conditions, and is a special new technology which enables the remote sensing observation image to serve the navigation positioning method and system by utilizing the bionic means.

Description

technical field [0001] The invention relates to a bionic navigation method and a navigation and positioning system, in particular to a bionic navigation method and a navigation and positioning system based on a remote sensing sky polarization pattern map. Background technique [0002] Bionic polarization navigation is an autonomous navigation method in which organisms use the polarization characteristics of light to determine the reference direction, and it is one of the natural navigation methods in nature. This navigation method can avoid some deficiencies of the existing navigation methods, and is combined with inertial navigation, GPS navigation or geomagnetic navigation to become a high-precision navigation method. [0003] Remote sensing is a method of imaging through long distances, or a method of long-distance observation. At present, the use of sky polarized light to realize remote sensing detection is mainly single-point directional measurement, that is, to measur...

AI Technical Summary

Problems solved by technology

At present, the use of sky polarized light to realize remote sensing detection is mainly single-point directional measurement, that is, to measure the distribution information of sky polarized light at a certain altitude angle, and then to measure the sky light in different azimuths multiple times by adjusting the altitude angle of the instrument. The measurement results of each orientation are comprehensively analyzed to obtain the detection results. The above-mentioned single-point directional measurement method has certain limitations on the range and field of view of each measurement, and when adjusting the measurement orientation, different orientations will be measured separately. A time difference is generated, within the range of this time difference, the distribution of polarized light in the sky will change, which will lead to errors in the measurement results, and the existing technology cannot solve the blind spot problem of polarized light in the sky (the degree of polarization is zero) in the navigation process. effective monitoring and overcoming

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