摘要
脉冲星是具有107—109T强磁场的快速自转中子星,会不断地发出周期性电脉冲信号。通过识别脉冲轮廓可以实现航天器的定位和姿态调整。将采集到的光子到达时刻的TDC数据通过USB传送到上位机进行脉冲轮廓还原得到光子到达时间(TOA)。利用西安光学精密机械研究所的X射线地面模拟系统产生B0531星系进行测试,得到的脉冲轮廓与在NASA下载的B0531星数据的脉冲轮廓相似度达到95.38%。
Pulsars are neutron stars, with 107- 109 t magnetic field, rotating rapidly, and radiate electric pulse signal periodically.Aircraft positioning and attitude adjustment can be realized by identifying the pulse contour. In this paper, experiment collects TDC data from the X- ray ground simulation facility while the moment of photons reach, then puts TDC data to PC via USB to revert pulse profile. Finally, producing B0531- galaxies pulse signals by using the X- ray ground simulation system in Xi＇an Institute of Optics and Precision Mechanics of CAS, the similarity between the pulse profile data restored from experiment and downloaded from NASA is 95. 38 %.
出处
《电子技术应用》
北大核心
2016年第9期62-64,68,共4页
Application of Electronic Technique
基金
国家自然科学基金(51278235)
昆明理工大学2016年创新基金(2015YB054)
