点击次数：

论文类型：期刊论文

发表时间：2009-08-01

发表刊物：IEEE International Symposium on Intelligent Signal Processing

收录刊物：SCIE、EI、CPCI-S

卷号：58

期号：8

页面范围：2791-2796

ISSN号：0018-9456

关键字：Angle algorithm; navigation; navigation sensor; performance test; polarization vision

摘要：Navigation technology is an essential ability for the survival and development of animal and human. Desert ants Cataglyphis are able to explore their desert habitat for hundreds of meters while foraging and return back to their nest precisely and in a straight line. For deriving direction information, these animals use the pattern of polarized light in the sky which arises due to scattering of sunlight in the atmosphere. The polarization sensitivity mechanisms of the ants' compound eye are analyzed. A novel bionic navigation sensor is constructed. The work principle of the sensor is discussed. A novel algorithm of the direction angle calculation is presented. The merits of the new algorithm are discussed in detail. The angle output experiment of the navigation sensor is performed under different light conditions. The normalization output curve is obtained, and the angle output error is given with our algorithm. The experiment result indicates that the new angle algorithm is feasible and effective.