FIR滤波 FPGA

《Delphi串口及语音传真高级编程》所附带光盘的源程序，网上不多见，可执行程序网上较多- "Delphi String Mouth And Pronunciation Facsimile High-level Programming" supplements the compact disc the source program, on-line not sees, but the executive routine on-line are more

较好的串口编程类- Better string mouth programming class

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

一个通讯程序源码 -The source of an communication a

安捷伦CDMA网络测试工具帮助，可以参考此工具的说明进行对网络维护和测试的学习。-Agilent CDMA network testing tools to help, they can refer to the tool descriptions of network maintenance and testing of learning.

一个modem通信程序-a modem communication program

SIM300的GPRS连接例程序，用的MSP430单片机，对SIM300模块的开发有一定的参考价值-SIM300 the GPRS connection Example procedures used MSP430 microcontroller, the development of SIM300 module has certain reference value

ps2键盘外部中断20键 有需要的 可以使用-external interrupt ps2 keyboard has 20 keys need to use

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

规模大通过的智能设备像智能手机一样为个人使用打开了一个机会来确定个人通过其智能设备的身份。本文旨在实现非常简单的通过使用指针式复示器板，如与使用蓝牙技术，几乎在每一个智能设备中可用的智能设备进行交互的 Arduino 的设备进行身份验证的用户的访问控制技术。通过试验讨论了实现过程。作为一种方法论的安全通信，手机的应用程序使用密码保护。一些可能的应用领域被讨论拟议的方法可用于启用相应的服务。新奇的这项工作是为用户的访问在有担保的受保护地方提供一个简单、 低成本的解决方案。进一步，拟议的身份验证机制是直观，需要最小的努力。