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Sensors 2014, 14(7), 13006-13023; doi:10.3390/s140713006

A Bionic Camera-Based Polarization Navigation Sensor

1,2,* , 2
1 University of Science and Technology of China, Hefei 230027, China 2 Institute of Advanced Manufacturing Technology, Chinese Academy of Sciences, Changzhou 213000, China
* Author to whom correspondence should be addressed.
Received: 10 March 2014 / Revised: 20 June 2014 / Accepted: 3 July 2014 / Published: 21 July 2014
(This article belongs to the Section Physical Sensors)
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Navigation and positioning technology is closely related to our routine life activities, from travel to aerospace. Recently it has been found that Cataglyphis (a kind of desert ant) is able to detect the polarization direction of skylight and navigate according to this information. This paper presents a real-time bionic camera-based polarization navigation sensor. This sensor has two work modes: one is a single-point measurement mode and the other is a multi-point measurement mode. An indoor calibration experiment of the sensor has been done under a beam of standard polarized light. The experiment results show that after noise reduction the accuracy of the sensor can reach up to 0.3256°. It is also compared with GPS and INS (Inertial Navigation System) in the single-point measurement mode through an outdoor experiment. Through time compensation and location compensation, the sensor can be a useful alternative to GPS and INS. In addition, the sensor also can measure the polarization distribution pattern when it works in multi-point measurement mode.
Keywords: bionic navigation; polarization measurement; camera based; Cataglyphis bionic navigation; polarization measurement; camera based; Cataglyphis
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Wang, D.; Liang, H.; Zhu, H.; Zhang, S. A Bionic Camera-Based Polarization Navigation Sensor. Sensors 2014, 14, 13006-13023.

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