一个最新版本的SIP协议栈，大家可以看看，学习一下

USB设计需要的资料，包括：MINI USB接口尺寸封装，USB_debuger程序，usb定义。-USB-required information, including: MINI USB interface size packaging, USB_debuger program, usb definitions.

该程序是VCO的simulink不同实现。设置不同的参数可得到不同的仿真效果。-that the procedure was different VCO Simulink achieve. Set up different parameters can be obtained simulation results.

Transporting DNP V3.00 over Local and Wide Area Network. 1 Overview 1.1 Purpose DNP V3.00 (hereafter referred to simply as DNP) was designed for serial point-to-point communication (e.g. RS-232) with limited support for half duplex serial networks (e.g. RS-485). In order for devices to exchange DNP messages in a local (LAN) and/or wide area network (WAN), one must either augment the protocol to support a network environment or use an existing network transport mechanism. This document takes the latter approach specifically, to define how to transport DNP traffic on the internet protocol suite. -Transporting DNP V3.00 over Local and Wide Area Network. 1 Overview 1.1 Purpose DNP V3.00 (hereafter referred to simply as DNP) was designed for serial point-to-point communication (e.g. RS-232) with limited support for half duplex serial networks (e.g. RS-485). In order for devices to exchange DNP messages in a local (LAN) and/or wide area network (WAN), one must either aug

gsm 规范。对学习电信的人很有帮助 。-gsm norms. On learning of telecommunications helpful.

ACTRIS SL7000系列多功能智能型电能表 通讯规约及范例-ACTRIS SL7000 series of intelligent multi-function watt-hour meter communication and examples of the Statute

一个好的通讯录程序 用VB所编 赶快下载-a good correspondence with VB procedures prepared by quickly download

我自己写得很简单初级的串口调试工具（在51单片机上成功调试过）-Serial Debugging (51 MCS)

Create a frequency-domain Rayleigh fading simulator. Plot a sample envelope Plot the power spectral density (in dB) of the envelope Plot a histogram of the signal samples

升余弦滚降系统的眼图和功率谱，滚降系数为0.5.发送码元取值为0、2.-Raised Cosine the eye and power spectrum, roll-off factor of 0.5. This code value for 0,2 billion.