Programming category of communication a good serial communication implementation...

Visual C++ 串口通信编程实践 第一章和第二章源码-Visual C++ Serial communication programming practice, first chapters I and II source

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

本程序采用直接扩频技术，应用mfsk调制解调技术实现水声系统的仿真，具有抗多径，可靠性高等特点

应用背景该程序可以应用在zigbee模块上，实现zigbee模块的相互通信，当然是通过射频方式而非z-stack方式。关键技术 能够实现多个模块之间的相互通信，并且能够使接收端在收到数据后自动转发数据，而且可以实现发射端也能接收到原来的数据，使得终端节点不仅具有终端的作用，还具有路由器的作用，更重要的是，它并非使用z-stack协议栈，运行速度更加的快而稳定。

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

这个文档详细讲解了在单片机上实现控制GSM模块的格式，对于开发远程通信系统的人员很有用-This document gave a detailed account in single-chip GSM module to achieve control over the format of the remote communication system for the development of personnel is useful

In this simulink model , baseband binary detection is simulated .A rectangular pulse shaped signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The binary signal transmitted is recovered at the detector output.-In this simulink model , baseband binary detection is simulated .A rectangular pulse shaped signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The binary signal transmitted is recovered at the detector output.

Clonal Selection-Theory-and-CLONALG-The-Clonal-Selection-Classification-Algorithm

高斯的分布产生随机数的方法： 在瑞利分布生成随机数的方法 该程序是用C + +语言，程序的项目可以通过VS2005打开。对于每个分配，程序生成的随机数10000 泊松分布生成随机数的方法：-The program is written by C++ language, the program project can be opened by VS2005. For each distribution, the program generated 10000 random numbers The method of generating Gaussian distributed random numbers The method of generating Rayleigh distributed random numbers The method of generating Poisson distributed random numbers

这段代码是 routng 协议的移动自组网中区域路由协议。这个协议用在扩展的主动路由和路由需求。它是非常效能协议，因为它有沉默的这两个协议的特点。