Abstract
Many insects are able to utilize the patterns of atmospherically scattered sunlight to reliably determine absolute heading even when the sun is obscured. This is accomplished independently of earth’s electromagnetic field via passive sensing. Visual inputs from the unique anatomical structure of the Dorsal Rim Area (DRA) ommatidia are integrated with temporal circadian rhythm inputs along the polarization (POL) pathway. In this way, detected relative bearing from the sun and predicted solar azimuth are combined to achieve absolute heading. A method for detecting atmospheric patterns as well as a model for resolving these patterns into relative bearing from the solar meridian are presented. It is shown that the results of this process are consistent with corrected magnetic heading measurements. Thus, this approach offers a viable alternative to dead reckoning methods and the traditional magnetic compass.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
