1. Institute of Space Science and Technology Nanchang University Nanchang 330031 China
2. Key Lab of Advanced Transducers and Intelligent Control System Ministry of Education and Shanxi Province, College of Physics and Optoelectronics Taiyuan University of Technology Taiyuan 030024 China
3. Information Engineering School Nanchang University Nanchang 330031 China
4. Department of Physics, School of Science Nanchang University Nanchang 330031 China