1. Guangxi Key Laboratory of Precision Navigation Technology and Application, Guilin University of Electronic Technology, Guilin 541004, China
2. School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China
3. Guangxi Key Laboratory of Image and Graphic Intelligent Processing, Guilin University of Electronic Technology, Guilin 541004, China
4. National & Local Joint Engineering Research Center of Satellite Navigation Localization and Location Service, Guilin 541004, China
5. GUET-Nanning E-Tech Research Institute Co., Ltd., Nanning 530031, China
6. Faculty of Electrical and Electronics Engineering, Universiti Malaysia Pahang, Pekan 25200, Malaysia