1. Shaanxi Province Key Laboratory of Photoelectric Measurement and Instrument Technology, Xi’an Technological University , Xue-fu Middle Road, No. 2, 710021 , Xi’an , China
2. School of Electronics Information Engineering, Xi’an Technological University , Xi’an 710021 , China
3. School of Armament Science and Technology, Xi’an Technological University , Xi’an 710021 , China