Method for obtaining course angle by utilizing polarization geographic information database

• Main Authors: LIU YAFEI, LIU KANG, CUI YAN, ZHOU XINCHANG
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTEDMECHANICALLY; ELECTRIC DIGITAL DATA PROCESSING; GYROSCOPIC INSTRUMENTS; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The invention belongs to the technical field of polarization navigation, and provides a method for obtaining a course angle by utilizing a polarization geographic information database. Functional characteristics of an image type sky polarization mode testing system and a Hough transformation technology are combined, polarization information is obtained from the sky, the solar meridian direction capable of being used for calculating the course angle is extracted, a polarization geographic information database is established, and the polarization angle of the sky is calculated through construction of a planar two-dimensional coordinate system and a three-dimensional coordinate system. The method for obtaining the course angle through angle operation calculation is rigorous in thought and clear in organization, the course angle is obtained through a polarization geographic information database, and supplement and exploration are conducted on practical application of polarized light navigation. 本发明属于偏振导航技术领域，提供了一