Adopting Gradient Vector and Particle Filter in APT for Space Optical Communication

摘要：

Acquisition and tracking for Light beacon in space optical communication is an important and challenging work.The facula of the received light beacon is modeled as a two-dimensional rigid circle,inside which gradient vectors are computed through the idea of key-point descriptor.By way of the Bhattacharyya distance between the circle object distribution and reference template distribution,observation probability model of system is built.Combining with observation probability and tow-order recursive motion model,an improved particle filter of optimization and combination is adopted to forecast the state with updating the reference template.Simulation results indicate that the method is effective even when the facula is moving rapidly and briefly occluded.

作者: Haibo Huang Weirong Jiang Yong Ai Tao Zuo

作者单位: Dept.of Electronics and Information Science ,Hubei University of Automotive Technology,Shiyan,Hubei Dept.of Electronics and Information Science ,Hubei University of Automotive Technology,Shiyan,Hubei College of Electronic Information,Wuhan University,Wuhan,Hubei Province,China

会议类型: 国际会议

会议名称: 第一届智能网络与智能系统国际会议(ICINIS 2008)(The First International Conference on Intelligent Networks and Intelligent Systems)

会议地点: 武汉

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）