低通切比雪夫I型数字滤波器阶数为7阶 在2000Hz通带表现截止在2500Hz阻带边界在过渡带和阻带之间是单调下降波形....

ITU SS7 AIF message format and codes part 4

modbus协议全解，modicon公司编写的协议，很权威，很有参考价值。-modbus protocol the whole solution, modicon the company prepared an agreement, it is authoritative, useful reference value.

可视电话的信令流程分析，主要是基站和终端之间的交互-video telephony signaling processes, mainly between the base station and terminal interactive

NS2中的模拟场景脚本自动生成工具，非常方便-NS2 scenes in the script automatically generates simulation tool, a very convenient

这是我自己编写的串口调试程序，希望对大家有所帮助-This is what I have written serial debugger, we want to help

本程序包括一组子程序和中断程序，通过S7-200自由端口功能来产生从Modbus RTU. 它支持下列Modbus功能：----1.读输出(线圈)----2.读输入(触点)----3.读保持寄存器(V 存储器).----4.读输入寄存器----5.写单路输出----6.写单路保持寄存器----15.写多路输出----16.写多路保持寄存器-this includes a subroutine and the interruption procedure for the adoption of the S7-200 free port functions to generate from the Modbus RTU. It supports the following functions : a Modbus. Reading output (2) coil. Reading input (contact)---- 3. Reading maintain registers (V memory ).---- 4. Reading input register---- 5. write single-output---- 6. write to maintain the single-route Register---- 15. write multiple output---- 16. write multiple maintain registers

环境监测无线传感器网络节点的设计 针对环境监测的要求,开发了一种兼容型的无线传感器网络节点系统。该系统以MSP430FG4618为核心,采用 CC2420 214G射频芯片,软件上移植了德州仪器( TI) ZigBee协议栈,并在应用层开发了通信程序。该系统可以组建成稳定的网状网络,功耗低,数据传输稳定.-Environmental monitoring wireless sensor network node designed for environmental monitoring requirements, to develop a compatible system for wireless sensor network node. The system MSP430FG4618 as the core, using radio frequency chip CC2420 214G, software transplanted Texas Instruments (TI) ZigBee protocol stack, and the application layer has developed a communication program. The system can be formed into a stable mesh networking, low power consumption, data transmission and stability.

基于Matlab16QAM的调制解调仿真程序，希望有所帮助-Matlab16QAM modem based on the simulation program, I hope be helpful

应用RAS实现的远程访问， the applicatio of ras-application RAS achieve remote access, the applicatio of ras

串口调试助手,支持16进展和10进展通讯,支持多发送窗口,提供自动计算校验和功能-Serial debugging assistants and 10 support the progress of the progress of 16 communications, support multi-sending window, providing automatic calculation of calibration and functional