手机开发模式及操作系统,大体介绍，ppt格式文件

A. 产生一个长为1000的二进制随机序列，“0”的概率为0.8，”1”的概率为0.2；B. 对上述数据进行归零AMI编码，脉冲宽度为符号宽度的50%，波形采样率为符号率的8倍，画出前20个符号对应的波形（同时给出前20位信源序列）；C. 改用HDB3码，画出前20个符号对应的波形；D. 改用密勒码，画出前20个符号对应的波形；E. 分别对上述1000个符号的波形进行功率谱估计，画出功率谱；F. 改变信源“0”的概率，观察AMI码的功率谱变化情况；-have a length of 1,000 random binary sequence, "0" with a probability of 0.8, "a" with a probability of 0.2; B. above zero AMI data coding, and pulse width of symbols width of 50%, waveform sampling rate Symbol rate for the eight times that he painted before the 20 symbols corresponding waveforms (also given before 20 Source sequence); C. HDB3 code switch to depict the former 20 symbols corresponding waveform; D. Miller to switch codes to depict the former 20 symbols corresponding waveform; E. respectively above 1,000 symbols for the power spectrum waveform estimated to depict the power spectrum; F. Change source "0" the probability to observe AMI code changes in the power spectrum;

wsn的仿真源码,无须帐号,就可下栽.希望对大家有帮助啊-WSN simulation source, do not need an account, you can下栽. I hope all of you help ah

TCP/IP的网络图，介绍了，TCP/IP 的结构。是初学者需要了解的很必要的网络资料，需要看的朋友，快下！-TCP/IP network, introduced the TCP/IP structure. Beginners need to know is a very necessary network information needs as a friend, under fast!

在VB的环境之下，如何实现智能电器与PC机之间的通信。-In the VB environment, how to realize intelligent appliances and communication between the PC machine.

正交频分复用（OFDM） 系统的仿真，，信号的发送和接收，及信号的星座图和误码率,很适合初学OFDM的人学习和阅读。。。。

how to set up a pptp vpn connection? detailed steps with screen-shots

电源分配认知无线电网络及其测量能力积极原发性和继发用户节约能源，同时碰撞检测。

详细介绍定制WinCE操作系统的一般流程PPT-Details of the general processes custom WinCE operating system, PPT

ADlink 凌华科技 GPIB 卡例子程序实现同步读写-Adlink Technology GPIB card ADlink example program to read and write synchronization

设置矩形窗宽度等于256，获得矩形窗截断的离散时间信号，并得到其实部和虚部，最终获得在100Hz和200Hz模拟虚指数信号实部及其时域加窗截断离散时间信号的波形图，DFT、DTFT和FFT的幅度谱