机构

• 长春光学精密机械与物... [1]
• 软件研究所 [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

• 2011 [1]
• 2010 [1]

学科主题

• Computer S... [1]

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发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 Design and analysis of auto-focus assembly for spaceborne remote sensing camera (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China 作者:  Chen W.;  Gao X. 收藏  |  浏览/下载：32/0  |  提交时间：2013/03/25 Spaceborne remote sensing camera may be out of focus when the environment and photographic distance changes. In order to get higher ground sampled distance for the camera  based on the experience gained from the development of a remote sensing camera  working principle of auto-focus assembly control system was discussed. Time of waveform extraction was reduced. It sets force an auto-focus assembly that uses cam and line guide rail in order to move the lens group. The motion error of the auto-focus assembly was difficult to be eliminated and would affect on the focusing accuracy of the spaceborne remote sensing camera directly. So it was analyzed at both ends of the focusing structure. The CCD detector can keep stable when the remote sensing camera is imaging. The motion error was tested to verify the validity of the simulation result and it is less than 0.01mm. Its accuracy meets using demand. The focusing method of moving focal plane is suitable for spaceborne remote sensing camera. 2011 IEEE.   基于安全芯片的防伪数码相机 期刊论文  OAI收割 计算机工程与设计, 2010, 卷号: 31, 期号: 7, 页码: 1591-1594 罗应文; 王哲; 苏鸿根   |  收藏  |  浏览/下载：25/0  |  提交时间：2011/05/23 数码相机  安全芯片  数字签名  透镜成像原理  照片翻拍  RSA公开密钥密码体制digital camera  TPM chip  digital signature  lens imaging principle  copying photos  RSA public-key cryptography