qpsk constellation and histogram

该程序驱动MODEM反复拨打某一个电话号码.使用了简单的AT命令,通过COM口与MODEM通讯.-the procedure repeated MODEM Driver Call a telephone number. Use a simple AT commands, through COM ports with modem communication.

nothing to say! It is only the necessar file to be enabled to download other important file for my studies.

Simulation of Ad-Hoc routing protocols using OMNeT-Simulation of Ad-Hoc routing protocols using OMNeT++

本文介绍了CDMA2000 1XEV-DO网络协议标准包括EV-DO的关键技术以及系统性能-This paper introduces CDMA2000 1XEV-DO network protocol standards, including EV-DO technology, as well as the key to system performance

一个会商程序，支持白板、文字、语音 界面是基于BCGControlBarPro 语音是基于OPENH323-a status conference procedures, support whiteboard, text, voice interface is based on BCGControlBarPro voice is OPENH323

线程的概念、属性；线性创建的2种方式及其联系、区别和使用场合；线程的生命周期和5种状态；线程状态控制的一般方法；线程同步的概念、原理；线程同步的场合、线程同步的条件、同步对象的选取；线程间通讯的概念，与线程同步的区别；notify和wait的使用方法。两类socket通信的概念、特点、应用场合；两类socket通信的客户和服务端的基本步骤；组播通信的概念、组播客户端服务端的基本结构。-threads concept attribute; The creation of two linear models and their connections, and the use of different occasions; Threads of the life cycle and five state; Thread the general state control; Thread synchronization concept, principle; Thread Synchronization occasions, thread synchronization, the synchronization like the selection; Thread the concept of communication, and synchronization of different threads; notify the wait and use. Two types of socket communication concept, features, applications; Two types of socket communication and customer service side of the basic steps; The concept of multicast communication, multicast client services side of the basic structure.

应用背景 FIR(fini te impulse response)滤波器是数字信号处理系统中最基本的元件，它可以在保证任意幅频特性的同时具有严格的线性相频特性，同时其单位冲激响应是有限的，没有输入到输出的反馈，系统稳定。因此，FIR滤波器在通信、图像处理、模式识别等领域都有着广泛的应用。关键技术在进入FIR滤波器前，首先要将信号通过A／D器件进行模数转换，使之成为8bit的数字信号，一般可用速度较高的逐次逼进式A／D转换器，不论采用乘累加方法还是分布式算法设计FIR滤波器，滤波器输出的数据都是一串序列，要使它能直观地反应出来，还需经过数模转换，因此由FPGA构成的FIR滤波器的输出须外接D／A模块。

会用C编程并不代表就掌握了C语言,本书中归纳了一些常见的C编程错误,希望对大家能有所帮助.-Will use C programming does not mean that the hands of the C language, this book summarized some common C programming errors, in the hope that everyone can be helped.

wimax的alamouti-ofdm-阿拉穆提-正交频分复用

FSK调制,采用直接查表法,生成一个周期的正弦波-FSK modulation, the use of direct look-up table method, to generate a sine wave cycle