Qinglei Hu is a Professor in the School of Automation Science and Electrical Engineering, at Beihang University, China. He has made fundamental contributions to spacecraft control systems and mechatronics, and pioneered the application of fault tolerant attitude control algorithms in spacecraft, unmanned aerial vehicles, and missiles. He has published over 150 papers. Bing Xiao is an Associate Professor in the School of Automation, at Northwestern Polytechnical University, in China. His work focuses on spacecraft fault tolerant systems design. He has been elected as a senior member of the Chinese Youth Automation Committee, a platform for leading automation researchers in China. He has published over 70 papers. Bo Li is an Assistant Professor with the Shanghai Maritime University in Shanghai, China. He received his PhD from Harbin Institute of Technology. His research focuses include spacecraft attitude control, control allocation, fault diagnosis and fault-tolerant control, and optimal control and optimization methods. He has published over 30 papers. Youmin Zhang is Professor, Mechanical, Industrial and Aerospace Engineering, at Concordia Institute of Aerospace Design and Innovation (CISDI) at Concordia University, Canada. He received his PhD from Northwestern Polytechnical University in China. He has published four books, and over 500 papers and chapters.