CDMA 2000 数字蜂窝移动通信网 基站子系统与核心网间接口技术规范(国家标准)
上传时间： 2015-05-12
上传用户：ma1301115706
CDMA 2000第三层协议标准 Upper Layer (Layer 3) Signaling Standard for cdma2000 Standards for Spread Spectrum Systems
标签： Layer 2000 Signaling Standards
上传时间： 2015-05-12
上传用户：tuilp1a
介绍了CDMA 2000-1X系统,CDMA 网络发展及演进， 网络结构，系统提供的业务，无线传输 ... 定位业务,流媒体类业务,CDMA2000-1X系统使用的基本技术,CDMA系统中使用的调制/解调技术
上传时间： 2013-12-23
上传用户：jhksyghr
dm s preparing process. In this case we use O distance.
标签： preparing distance process case
上传时间： 2014-11-27
上传用户：凤临西北
This a very simple Yee algorithm 3D FDTD code in C implementing the free space form of Maxwell s equations on a Cartesian grid. There are no internal materials or geometry. The code as delivered simulates an idealized rectangular waveguide by treating the interior of the mesh as free space/air and enforcing PEC (Perfect Electric Conductor) conditions on the faces of the mesh.
标签： implementing algorithm Maxwell simple
上传时间： 2015-05-14
上传用户：水中浮云
he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with only 2 discrete levels, for example 0V and 5V and a constant period. The current value of this signal at a certain poiTnt of time is proportional to its Duty Cycle. That s the High Time during one period divided by the period. It can also be calculated as the average value during a particular period. That means after low pass filtering, (e.g. RC circuit) the signal becomes analog, with an actual value controlled by the microcontroller. The PWM functionality enables the LPC932 to control for example the speed of DC motors or the brightness of electric lighting.
标签： signal Modulated analog create
上传时间： 2015-05-14
上传用户：CHINA526
ANNUAL REPORT TO CONGRESS The Military Power of the People’s Republic of China 2005
标签： CONGRESS Military Republic ANNUAL
上传时间： 2013-12-27
上传用户：zhengzg
3G技术资料 －－ 北邮3G培训资料（CDMA） CDMA蜂窝移动通信
上传时间： 2015-05-15
上传用户：sunjet
3G技术资料－－ 大唐电信的 TD-SCDMA物理层关键技术资料
上传时间： 2015-05-15
上传用户：zmy123
中华人民共和国信息产业部3G国家技术标准TD－SCDMA中文协议
上传时间： 2015-05-15
上传用户：时代电子小智
