机构

• 长春光学精密机械与物... [1]
• 国家授时中心 [1]

采集方式

• OAI收割 [2]

内容类型

• 会议论文 [1]
• 期刊论文 [1]

发表日期

• 2020 [1]
• 2009 [1]

学科主题

筛选

浏览/检索结果: 共2条，第1-2条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 基于经度变换法的单台链双曲线定位GDOP计算 期刊论文  OAI收割 时间频率学报, 2020, 卷号: 43, 期号: 3, 页码: 196 作者:  王璐璐;  何在民;  韩振兴;  黄媛媛;  鲁刚   |  收藏  |  浏览/下载：25/0  |  提交时间：2021/11/29 longitude transformation method  geometrical dilution of precision (GDOP)  area identification  single chain  hyperbolic positioning  经度变换法  几何精度衰减因子(GDOP)  区域识别  单台链  双曲线定位   Orientation error analysis of alt-alt photoelectric telescope (EI CONFERENCE) 会议论文  OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, November 19, 2008 - November 21, 2008, Chengdu, China 作者:  Wu X.-X. 收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25 In order to ascertain the effects of main errors of alt-alt photoelectric telescope on measurement accuracy  orientation error is analyzed.For analyzing optical  mechanical and electrical errors from measured target to telescope picture  we construct 7 coordinates such as:the earth's core coordinate  alt-alt coordinate  etc.  carry through 21 times coordinate transformation  form measuring equation with 26 variables. and we utilize Monte Carlo method to calculate the orientation error  analyze the effects of errors upon pointing. The result indicates that the measuring error standard deviation of alt-alt telescope is minimum value about 10? at the zenith zone. and the deviation increases with the rotation angles of longitude and latitude axes. The model and the method not only can analyze and synthesize the main errors  but also provide a reference to the whole design. 2009 SPIE.