OPC client development a must

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

通信协议在串口通信编程中的实现，就是如何处理数据包，即发送时如何根据通信协议对数据进行打包，接收时如何根据协议对接收到的数据信息拆包，并取出自己想要的数据信息。-通 协 诖 通 疟械 实 未 莅 时 胃 通 协 萁 写 时 胃协 越盏 息 取 约 要 息

串口调试源代码，自己动手已经实现，能够完成与单片机的串口通信-serial debug source code, has achieved its own hands, and MCU to complete the serial communications

一个通讯录工具-a directory tool ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~

通信mccdma和ofdm的一些相关的资料。-OFDM communication mccdma and some relevant information.

】　本文主要讨论了Modbus 通信协议的R TU 帧格式中常用的错误校验方法,即循环冗余校验法( CRC) 。 提出了Modbus 协议反转CRC 校验的方法,推导了反转CRC 校验快速计算表格,并用C 语言实现了基于快速查 表算法的循环冗余校验程序。-In this paper, we mainly discuss the Modbus communication protocol R TU frame format commonly used in error checking methods, namely, Cyclic Redundancy Check Code (CRC). Modbus protocol proposed inversion method CRC checksum, CRC checksum is derived fast computing inversion table, and C language to achieve a quick look-up table algorithm based on cyclic redundancy check procedure.

modbus 采用Rtu方式时检测寄存的值.-modbus test using Rtu way that the value of storage.

著名的电信七号信令NO7,协议栈实现代码。包含了从最底层HDCL数据流处理到上层L4呼叫处理的流程。-The code for Ss7 protocol stacks,include from the HDCL data stream handling to the the Handle flow of L4 Call.

Windows套接字编程的实现，本源代码是socket通信中客户端的实现。-Windows Sockets programme, this code is the implementation of the Client,by C++.

vc ++ 6共享dll测试程序,刚才上串dll源码时,这个忘传了,-good