机构

• 地理科学与资源研究所 [3]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [4]

内容类型

• 期刊论文 [3]
• 会议论文 [1]

发表日期

• 2021 [2]
• 2020 [1]
• 2011 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4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 A review of the ecohydrology discipline: Progress, challenges, and future directions in China 期刊论文  OAI收割 JOURNAL OF GEOGRAPHICAL SCIENCES, 2021, 卷号: 31, 期号: 8, 页码: 1085-1101 作者:  Xia, Jun;  Zhang, Yongyong;  Mu, Xingmin;  Zuo, Qiting;  Zhou, Yujian   |  收藏  |  浏览/下载：25/0  |  提交时间：2021/11/05 ecohydrology discipline  theory and method  comprehensive observation  mathematical modelling  scale issue   A review of the ecohydrology discipline: Progress, challenges, and future directions in China 期刊论文  OAI收割 JOURNAL OF GEOGRAPHICAL SCIENCES, 2021, 卷号: 31, 期号: 8, 页码: 1085-1101 作者:  Xia, Jun;  Zhang, Yongyong;  Mu, Xingmin;  Zuo, Qiting;  Zhou, Yujian   |  收藏  |  浏览/下载：26/0  |  提交时间：2021/11/05 ecohydrology discipline  theory and method  comprehensive observation  mathematical modelling  scale issue   自然资源要素综合观测指标体系探讨 期刊论文  OAI收割 资源科学, 2020, 卷号: 42, 期号: 10, 页码: 1883 作者:  张贺;  王绍强;  王梁;  程书波;  姜正龙   |  收藏  |  浏览/下载：16/0  |  提交时间：2021/03/15 comprehensive observation  natural resources  indicator system  elements  observation methods  综合观测  自然资源  指标体系  要素  观测方法   The stability design and realization of airborne platform based on TMS320F2812 (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China 作者:  Zhang X.;  Zhang X.;  Zhang X. 收藏  |  浏览/下载：41/0  |  提交时间：2013/03/25 Airborne electro-optical stable platform can isolate movement and vibration of the airframe  stabilizes the optic axis of the photoelectic detector  realize the observation and tracking for the object. It has comprehensive application value in army and cicil field. Most of present airborne platforms are analogic control system  digital control system can improve the system general performance  digital control is the development direction of platform systems. In view of the requirements of isolating disturbances and stabilizing optical axis of high-precision photoelectric guidance system  a three-axis stabilized platform system centering on the rate gyro was designed. The disturbance-isolation theory of the stabilized platform was analyzed and the control structure including multiple closed-loops was designed. At last a controller of the servo system based on TMS320F2812 DSP has been designed. Experiment results meet the technical index and precision requirement  and illustrate the practicability and effectiveness of the scheme. 2011 IEEE.