The use of MODBUS communications with EMA smart meter to receive information, we...

SYMPCHUNK sets the number of symbols demodulated at once with a constant carrier frequency and symbol timing offset. This is a fundamental decoder parameter that establishes its carrier and symbol timing tracking bandwidth. Set it too low and the demodulator can"t accurately determine carrier frequency and symbol timing on a noisy signal. Set it too high and the demodulator may not be able to track large symbol rate offsets caused by Doppler shift and/or A/D or spacecraft clock errors. Or it might have trouble tracking high rates of change in the carrier frequency due to Doppler acceleration.The current value of SYMPCHUNK is 4*N1 = 512, where N1 = 128 is the order of the convolutional interleaver. 512 symbols is 512 milliseconds at 1000 symbols/sec, giving a frequency/time determination SNR that is 10*log10(512) = 27 dB greater than the Es/N0, not counti

m序列的概念、产生原理、方法、性质和运用,了解m序列的框图、仿真波形,学会对m序列的仿真设计.-The concept of m sequences, resulting in principles, methods, nature and use to understand the m sequence diagram, simulation waveforms, the Institute for Simulation and Design of m sequences.

详细阐述信道编码在实际系统中的应用，其中包括了RS码，turbo码以及信息论。-elaborate channel coding system in the actual application, including the RS code, turbo codes and information theory.

基于CAsyncSocket的局域网通信程序-CAsyncSocket LAN-based communication program

解决方案手册- Behrouz A. ForouzanTCPIP协议套件

售票系统代码及设计思想。本程序是我的一个课程设计，得到老师的肯定了。请放心，绝对原创！-ticketing system code and design ideas. This program was one of my curriculum design, be sure the teacher. Please be assured that absolute originality!

这是本人学习CVI时下载的一个小程序，本程序根据原CVI串口例程改写，可以改变端口号、波特率等参数。并加入了显示串口状态的LED。

短信中心的mo和网关源码,对短信方面的开发会有所帮助-Message center and gateway mo-source, the message area of the development will be helpful

局域网用户屏幕的控制和查看程序-LAN user screen control and view the procedure

ISO 13239为关于HDLC协议的国际标准，详细定义了HDLC的内容，通过该协议可以完成标准的HDLC编程-ISO 13239 for HDLC agreement on international standards, a detailed definition of the content of HDLC, adoption of the agreement will be completed standard HDLC Programming