GSM, GPRS and EDGE Performance Evolution
The wireless market has experienced a phenomenal growth since the first second- generation (2G) digi...
introduced技术资料
📦 资源总数：133
💻 源代码：469
📚 introduced全部资料 (133个)
Mobile+and+Wireless+Systems+Beyond+3G
With the rapid growth of the wireless mobile applications, wireless voice has begun to challenge wir...
RF Measurements for Cellular Phones
The market for cellular phones and wireless data transmission equipment has changed dramatically sin...
The 3G IP Multimedia Subsystem (IMS)
When 3GPP started standardizing the IMS a few years ago, most analysts expected the number of IMS de...
Wireless+Networking+Complete
This chapter provides extensive coverage of existing mobile wireless technologies. Much of the empha...
RFID_Security_and_Privacy_Concepts
In the first chapter, the topic of this book is classified into the area of pervasive com- puting. F...
基于stm32f103c8t6单片机的主从式桌面机械臂的设计
随着科技发展及工业4.0 进程推进,机械臂应用范围越来越广,并演化出各种各样的机械臂,如码垛机械臂、焊接机械臂、装配机械臂以及手术机械臂等。现利用solidworks 进行三维建模,设计制作一款基于s...
基于单片机和人体红外线传感器自动关门锁门的装置
入室抢劫事件屡见不鲜,针对此现象进行分析不难发现,造成失窃事件的极大原因是人们慵懒和意识差等不良性格造成习惯性不锁门.本文以STC89C52单片机为基础,设计了一种基于人体红外传感器的自动关门锁门装置...
磁致伸缩位移传感器的设计与实现
本文设计了一种磁致伸缩位移传感器,介绍了该磁致伸缩位移传感器的测量原理,通过结构优化设计提高了仪器的性能,详述了硬件电路设计及实现方法,完成了软件设计,实现了高压充电、问询脉冲加载、时间测量及滤波等功...
高精度双向DC电源电流采样电路设计
为适应双向DC/DC功率变换的电流采样需求,一种高精度高边电流采样电路被提出。其基本思想是在功率电路的高边串入采样电阻,借助电流镜原理并引入偏置电流电路,将双向电流均转换为正向电压输出。通过理论分析与...