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Since the principle of multi-carrier code division multiple access (MC-CDMA) was simultaneously proposed by Khaled Fazel et al. and Nathan Yee et al. at the IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) in the year 1993, multi-carrier spread spectrum (MC-SS ...

This book provides the essential design techniques for radio systems that operate at frequencies of 3 MHz to 100 GHz and which will be employed in the telecommunication service. We may also call these wireless systems, wireless being synonymous with radio, Telecommunications is a vibrant indus- try, ...

Wireless communications has become a field of enormous scientific and economic interest. Recent success stories include 2G and 3G cellular voice and data services (e.g., GSM and UMTS), wireless local area networks (WiFi/IEEE 802.11x), wireless broadband access (WiMAX/IEEE 802.16x), and digital broad ...

Although the origins of radio frequency based wireless networking can be traced back to the University of Hawaii’s ALOHANET research project in the 1970s, the key events that led to wireless networking becoming one of the fastest growing technologies of the early 21st century have been the ratifica ...

#include<iostream> using namespace std; int s=0;  int prime(int x){ int i,p=1; for(i=2;i<=x/2;i++){ if(x%i==0){ p=0; break; } } if(p!=0){ cout<<x<< " "; s++; } }  int main(){ for (int k=5;k<=100;k++){ prime(k); if(s%5==0) cout<<'\n'; } return 0; } ...

可测试性设计（Design-For-Testability，DFT）已经成为芯片设计中不可或缺的重要组成部分。它通过在芯片的逻辑设计中加入测试逻辑提高芯片的可测试性。在高性能通用 CPU 的设计中，可测试性设计技术得到了广泛的应用。本文结合几款流行的 CPU，综述了可应用于通用 CPU 等高性能芯片设计中的各种可测试性方法，包括扫描设计 ...

 兴起于上世纪80年代末，并于1990年被IEEE 标准协会接纳为IEEE1149.1标准的JTAG 技术，其产生的背景是对高密度集成电路板进行故障检测，现在已被广泛用于支持芯片测试、设备编程、混合信号测试和现场服务等领域。本文首先介绍了」TAG 接口的定义及其具体结构，对边界扫描的具体工作过程进行了分析，并列举了几种常用功 ...

IPC-A-610H 2020 CN 中文版: 电子组件的可接受性IPC-A-610H是电子行业广泛采用的电子组件验收标准。IPC-A-610H标准中包含了本文件的一般更新内容，介绍了一些新型表面贴装元器件，同时删除了目标条件。 本文件在电子行业成功问世离不开来自29个国家/地区的参与者，这些参与者在本文件编制期间投入了大量的精力并贡献了宝贵 ...

7寸RGB接口电容触摸屏GT911模块软硬件技术资料+STM32单片机软件工程源码:1-原理图_尺寸图_封装库2-配套程序3-参考资料5_7寸液晶屏与各开发板的接线方式.xls关于触摸相关程序说明.pdf7.0-11SPEC(STD-TN92).pdfgt91x编程指南.pdf其他电容触控芯片GT911_数据手册2013.pdf触摸屏主机端调试指南.pdf ...

STM32F030C8T6 单片机+DM9051以太网RJ45模块ALTIUM设计硬件原理图+PCB+封装库文件，采用4层板设计，板子大小为5046x28mm，双面布局布线，包括完整的原理图和PCB文件，可以用Altium Designer(AD)软件打开或修改，可作为你产品设计的参考。DM9051NP SPI接口网卡芯片是为了方便MCU单片机系统进行以太网通信而开发出的解决方案 ...