In modern AC servo systems, vector control principles and space voltage vector pulse width modulation (SVPWM) technology enable AC motors to obtain Performance is comparable to DC motors. Permanent magnet synchronous electricity
In modern AC servo systems, vector control principles and space voltage vector pulse width modulation (SVPWM) technology enable AC motors to obtain Performance is comparable to DC motors. Permanent magnet synchronous electricity (2021-03-14, PDF, 526KB, 下载0次)
全志H6数据手册
Allwinner h6 v200是一款高成本的四核ott box处理器，这是日益增长的家庭娱乐产品的一部分，这些产品提供高性能的处理和高度的功能集成。
Allwinner H6 User Manual (2020-08-07, PDF, 11189KB, 下载8次)
内容简介：
多年来，NASA任务一直在逐步增加飞行和地面系统的自主权，以增加从任务返回的科学数据量，执行新科学并降低任务成本。在1990年代初期，美国宇航局戈达德太空飞行中心的研究人员开始研究用于地面控制系统和航天器的人工智能技术。该研究始于开发和试验专家系统以自动化地面系统软件，并减少控制航天器所需的人员。接下来是对基于代理的技术和自主系统概念的研究，这些技术和技术旨在增强未来的空间任务自我管理和在其运行的恶劣环境中的生存能力。
Over the years, NASA missions have been gradually adding autonomy to flight and ground systems to increase the amount of science data returned from missions, perform new science, and reduce mission costs. In the early 1990s, a group of researchers at NASA Goddard Space Flight Center began researching artificial intelligence techniques for application to ground control systems and spacecraft. The research started by developing and experimenting with expert systems to automate ground system software and reduce the number of people needed to control a spacecraft. This was followed by research into agent-based technologies and autonomic systems concepts directed towards enhancing future space-mission self-management and survivability in the harsh environments in which they operate. (2020-02-19, PDF, 3294KB, 下载0次)
2013年5月1日至6月8日,中国气象局气象探测中心在中国气象局大气探测综合试验基地进行了云高观测试验,试验仪器包括:(1)毫米波云雷达(35 GHz),观测数据为回波功率值,时间分辨率1 min;(2)激光云高仪,观测数据为后向散射光强度,时间分辨率为1 min;本工作对39天试验数据进行对比分析,结果表明:毫米波云雷达数据获取率要比激光云高仪的数据获取率高26%;在雾霾天气时激光云高仪的数据获取率比毫米波云雷达低51%，比较接近。
From May 1 to June 8, 2013, the Meteorological Observation Center of the China Meteorological Administration conducted a cloud height observation experiment at the Comprehensive Test Base of the Atmospheric Survey of the China Meteorological Administration. The experimental instruments include: (1) millimeter wave cloud radar (35 GHz) with the observed data of echo power and time resolution of 1 min; (2) laser cloud altimeter with the observed data of backscattered light intensity and time resolution. The results show that the data acquisition rate of millimeter wave cloud radar is 26% higher than that of laser altimeter, the data acquisition rate of laser altimeter is 51% lower than that of millimeter wave Cloud Radar in fog and haze weather, and the results of cloud height measurement by laser altimeter in precipitation weather are compared and analyzed. which is close to each other. (2018-09-14, PDF, 1269KB, 下载4次)
电子阅读器采用嵌入式操作系统为控制中心,可靠性高,应用灵活,可以根据需要对
系统进行扩展。嵌入式系统高度自动化,响应速度快,从而得到广泛应用。电子阅读器作为新型
的电子类产品正是利用嵌入式系统这个特点开发设计的。利用嵌入式系统开发设计一种简易的
电子阅读器,介绍电子阅读器的设计思路,并通过实践给出具体的设计方案。
fgsfdgsfg (2009-02-17, PDF, 70KB, 下载16次)
图像检索中颜色的特征提取及匹配算法，以家权欧几里得距离，中心距得加权距离，直方图交集算法等。
Image Retrieval color feature extraction and matching algorithm to the right home Euclid distance, center distance of a weighted distance, histogram intersection algorithm. (2009-01-01, PDF, 35KB, 下载40次)
亚威培训中心针对CISCO新出的教材编写的CCNA640-802中文实验手册
Yawei CISCO training center for new materials out of the Chinese experiment CCNA640-802 Manual (2007-12-21, PDF, 82KB, 下载3次)
杭州中联培训中心针对CISCO新出的教材编写的CCNA640-802中文实验手册
Hangzhou, China United CISCO training center for new materials out of the Chinese experiment CCNA640-802 Manual (2007-12-21, PDF, 740KB, 下载3次)
广西权威IT认证培训中心针对CISCO新出的教材编写的CCNA640-802中文实验手册
Guangxi authoritative IT certification training center for CISCO new materials out of the Chinese experiment CCNA640-802 Manual (2007-12-21, PDF, 565KB, 下载3次)