A novel x-ray circularly polarized ranging method  

作　　者：宋诗斌 许录平 张华 高娜 申洋赫 

机构地区：[1]School of Aerospace Science and Technology, Xidian University [2]Shandong Institute of Aerospace Electronics

出　　处：《Chinese Physics B》2015年第5期503-513,共11页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.61172138 and 61401340);the Natural Science Basic Research Plan in Shaanxi Province of China(Grant No.2013JQ8040);the Research Fund for the Doctoral Program of Higher Education of China(Grant No.20130203120004);the Open Research Fund of the Academy of Satellite Application,China(Grant No.2014 CXJJ-DH 12);the Xi’an Science and Technology Plan,China(Grant No.CXY1350(4));the Fundamental Research Funds for the Central Universities,China(Grant Nos.201413B,201412B,and JB141303);the Open Fund of Key Laboratory of Precision Navigation and Timing Technology,National Time Service Center,Chinese Academy of Sciences(Grant Nos.2014PNTT01,2014PNTT07,and 2014PNTT08)

摘　　要：Range measurement has found multiple applications in deep space missions. With more and further deep space ex- ploration activities happening now and in the future, the requirement for range measurement has risen. In view of the future ranging requirement, a novel x-ray polarized ranging method based on the circular polarization modulation is proposed, termed as x-ray circularly polarized ranging （XCPolR）. XCPolR utilizes the circular polarization modulation to process x-ray signals and the ranging information is conveyed by the circular polarization states. As the circular polarization states present good stability in space propagation and x-ray detectors have light weight and low power consumption, XCPolR shows great potential in the long-distance range measurement and provides an option for future deep space ranging. In this paper, we present a detailed illustration of XCPolR. Firstly, the structure of the polarized ranging system is described and the signal models in the ranging process are established mathematically. Then, the main factors that affect the ranging accuracy, including the Doppler effect, the differential demodulation, and the correlation error, are analyzed theoretically. Finally, numerical simulation is carded out to evaluate the performance of XCPolR.Range measurement has found multiple applications in deep space missions. With more and further deep space ex- ploration activities happening now and in the future, the requirement for range measurement has risen. In view of the future ranging requirement, a novel x-ray polarized ranging method based on the circular polarization modulation is proposed, termed as x-ray circularly polarized ranging （XCPolR）. XCPolR utilizes the circular polarization modulation to process x-ray signals and the ranging information is conveyed by the circular polarization states. As the circular polarization states present good stability in space propagation and x-ray detectors have light weight and low power consumption, XCPolR shows great potential in the long-distance range measurement and provides an option for future deep space ranging. In this paper, we present a detailed illustration of XCPolR. Firstly, the structure of the polarized ranging system is described and the signal models in the ranging process are established mathematically. Then, the main factors that affect the ranging accuracy, including the Doppler effect, the differential demodulation, and the correlation error, are analyzed theoretically. Finally, numerical simulation is carded out to evaluate the performance of XCPolR.

关 键 词：x-ray ranging circular polarization modulation deep space regenerative ranging 

分 类 号：O434.1[机械工程—光学工程]