作者机构:[1]State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, P. R. China
相关基金:Acknowledgments This work is supported by the National Hi-tech Research and Development Program of China (863 Program, Grant no. 2011AA0403837002), the National Natural Science Foundation of China (No. 61005076, No. 61175107), and the Self-Planned Task (No. SKLRS201006B) of the State Key Laboratory of Ro- botics and System (HIT).