摘要
基于X射线脉冲星导航(XPNAV)系统的工作原理,设计并实现了一种基于激光量子探测的XPNAV地面仿真系统。通过分析X射线脉冲星信号,建立了信号的调制模型,提出了脉冲星信号轮廓累积Renyi熵方法,模拟产生了X射线脉冲星信号。实验表明,构建的XPNAV半物理仿真系统简单实用,可以实现XPNAV的实验验证,其产生的模拟信号的概率分布与理论分布一致。
Based on the principle of the X-ray pulsar navigation（XPNAV） system,a light quantum detection based XPNAV hardware in-the-loop simulation system was designed and implemented.Through analyzing the X-ray pulsar signal,the theoretical model of the system was established,the Renyi entropy method of pulsar profile cumulation was proposed,and the X-ray pulsar signal was generated.The experiments show that this simulation system is simple and practical,and can accomplish the navigation experiments very well.Besides,the probability distribution of the observed signals generated by the system is agreed with the theoretical resut.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2011年第6期905-910,共6页
Journal of Optoelectronics·Laser
基金
国家高技术研究发展计划"863"资助项目(2007AA12Z323)
国家自然科学基金资助项目(60772139)
关键词
脉冲星
RENYI熵
激光量子
半物理仿真
pulsar
Renyi entropy
laser quantum
hardware in-the-loop simulation
