机构

• 地理科学与资源研究所 [2]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [3]

内容类型

• 期刊论文 [2]
• 会议论文 [1]

发表日期

• 2019 [2]
• 2005 [1]

学科主题

筛选

浏览/检索结果: 共3条，第1-3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 Exploring a Moderate Operation Scale in China's Grain Production: A Perspective on the Costs of Machinery Services 期刊论文  OAI收割 SUSTAINABILITY, 2019, 卷号: 11, 期号: 8, 页码: 17 作者:  Xu, Yu;  Xin, Liangjie;  Li, Xiubin;  Tan, Minghong;  Wang, Yahui   |  收藏  |  浏览/下载：7/0  |  提交时间：2019/09/24 moderate operation scale  farm size  mechanization cost  grain production  China   Exploring a Moderate Operation Scale in China's Grain Production: A Perspective on the Costs of Machinery Services 期刊论文  OAI收割 SUSTAINABILITY, 2019, 卷号: 11, 期号: 8, 页码: 17 作者:  Xu, Yu;  Xin, Liangjie;  Li, Xiubin;  Tan, Minghong;  Wang, Yahui   |  收藏  |  浏览/下载：16/0  |  提交时间：2019/09/24 moderate operation scale  farm size  mechanization cost  grain production  China   INS's error compensation on the base of the celestial theodolite (EI CONFERENCE) 会议论文  OAI收割 ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China 作者:  Guo L.-H.;  Zhao H.-B. 收藏  |  浏览/下载：67/0  |  提交时间：2013/03/25 In recent years there has been a major upsurge of interest in the integrated inertial navigation system (INS)/celestial navigation system (CNS) as a cost-effective way of providing accurate and reliable navigation aid for civil and military vehicles (ships  aircrafts  land vehicles and so on). One of the disadvantages of INS is its errors will grow unbounded. The CNS can be used to improve position estimation resulting from INS measurement. This paper describes the design of this. An error model developed earlier is used for CNS/INS filter (Kalman filter) mechanization. In CNS  celestial theodolite acquires an image of the sky  recognize the most brilliant stars in the image  creates with them a "constellation"  and searches for this pattern in an on board star catalogue of the observed region to get the precise position and attitude information of vehicles. The Kalman filter method is used to fuse measurement from the system. We can use this information to compensate INS's error. The tests carry out with this system show that system will get accurate navigation information.