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浏览/检索结果: 共4条，第1-4条 帮助 限定条件 学科主题：空间技术     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 基于单X射线探测器的航天器深空巡航段自主导航研究 期刊论文 空间控制技术与应用, 2012, 卷号: 38, 期号: 6, 页码: 27-30 杨成伟; 郑建华 收藏  |  浏览/下载：19/0  |  提交时间：2014/04/30 自主导航  脉冲星  巡航段  加权最小二乘滤波   AUTONOMOUS INTEGRATED NAVIGATION USING X-RAY PULSARS AND ASTEROIDS 会议论文 63rd International Astronautical Congress 2012, IAC 2012, Naples, Italy, 2012 Yang Chengwei; Gao Dong; Zheng Jianhua 收藏  |  浏览/下载：33/0  |  提交时间：2014/04/30 To improve the navigation performance of the spacecraft during interplanetary cruise  a novel integrated navigation system is proposed. For X-ray pulsar navigation (XNAV) is a hot and prospective research subject  and the optical navigation using asteroids is practical in space engineering  we designed an autonomous navigation system using one X-ray detector and one navigation camera. The measurement models of the XNAV based on the time difference of arrival and the optical navigation based on the images of asteroids are presented. To enhance practicality  the X-ray pulsars and asteroids are observed by turns. The batch least square filter  used by Deep Space I  is adopted to estimate the system state. The numerical simulation results show that the integrated navigation is feasible on the interplanetary cruise orbit. Moreover  compared with the XNAV and the optical navigation  the integrated navigation system can provide higher navigation performance.   基于虚拟仪器的深空信道仿真器的设计与实现 期刊论文 电子测量技术, 2010, 卷号: 33, 期号: 3, 页码: 89-92 任海玉; 高翔; 闫毅; 姚秀娟; 李秀冰 收藏  |  浏览/下载：27/0  |  提交时间：2014/04/30 深空信道  残留载波调制  多普勒频移  高斯白噪声  虚拟仪器  LabVIEW   Electric control system for microgravity fluid experiment on SZ-4 spaceship 期刊论文 Acta Astronautica, 2006, 卷号: 58, 期号: 1, 页码: 38-43 姜秀杰; 孙辉先; 陈晓敏; Wang, Z. H.; Zhang, L.; Wang, D. X.; Liu, Y. Q. 收藏  |  浏览/下载：13/0  |  提交时间：2014/05/04 electric control system  SZ-4 spaceship  microgravity  drop Marangoni  migration