调整电视调谐器是非常有用的，使视频频率

We investigate the case of independent Rayleigh faded paths between antenna elements and find that with high probability extraordinary capacity is available. Compared to the baseline n = 1 case, which by Shannon’s classical formula scales as one more bit/cycle for every 3 dB of signaltonoise ratio (SNR) increase, remarkably withMEAs, the scaling is almost like n more bits/cycle for each 3 dB increase in SNR. To illustrate how great this capacity is, even for small n, take the cases n = 2, 4 and 16 at an average received SNR of 21 dB. For over 99 of the channels the capacity is about 7, 19 and 88 bits/cycle respectively, while if n = 1 there is only about 1.2 bit/cycle at the 99 level. For say a symbol rate equal to the channel bandwith, since it is the bits/symbol/dimension that is relevant for signal constellations, these higher capacities are not unreasonable. The 19 bits/cycle for n = 4 amounts to 4.75 bits/symbol/dimension while 88 bits/cycle for n = 16 amounts t

BER BPSK: Bit error rate for Bi Phase Shift Key

labview串口代码，适合初学者学习主程序框图介绍：主程序框图主要由3个状态组成：程序的初始化，程序事件的响应，程序的退出。状态Init：程序初始化，主要把OpenCom等按钮，串口状态，串口接收字符串，波形图标，TX/RX计数等控件，置为False或清零。初始化状态只执行一次，接下来就进入状态Event。状态Event：程序事件响应，由一个事件结构构成，共需响应8个事件：Open/CloseCom按钮事件；串口号或波特率改变事件；发送按钮事件；清空计数按钮事件；清空接收区按钮事件；清空波形区按钮事件；保存波形按钮事件；菜单选择事件；退出按钮事件。如果在此状态，按下退出按钮，则进入状态Exit，否则程序将一直运行在此状态。 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报

仿真载频为2GHz，带宽1MHz，子载波数128个，cp为16，子载波间隔为7.8125kHz 一个ofdm符号长度为128us，cp长度为16us，采用16QAM调制方式，最大doppler频率为132Hz 采用LMMSE估计和LS估计算法并进行了比较

基于socket的http类，可以用于文件的上传下载，http请求操作。支持定义请求头、超时设置等。

A document about IrDA physical layer

MODBUS通信程序.可用于学习施耐得PLC通信、现在国产好多RTU都用MODBUS协议。-MODBUS communications procedures. Learning can be used Shi able to endure PLC communications, many Chinese now are using MODBUS RTU agreement.

MIMO OFDM 中的VBLAST空时编码程序，有利于我们更好的学习MIMO-OFDM提供了好的基础！-VBLAST in MIMO OFDM space-time coding procedures will help us to better study the MIMO-OFDM provides a good foundation!

pc ceaner, cookies, .dat tempory files, History,IECache,IECookies

API串口读写模块 这是用VB编的通过API来对串口进行读写操作-API to read and write serial port using VB module which is made through the API to read and write serial port operation