VC on the development of the original socket communications code

此代码是组态王软件与上海耀华的XK3190D2称重仪表通讯的源代码-This code is Kingview software and Shanghai Yaohua Weighing Instrument of XK3190D2 communications source code

1)生成2KHz和8KHz的混合信号，使该信号通过上述滤波器，观察滤波前后的波形变化和频谱分布情况。 2) 在改信号中加入高斯白噪声，观察滤波前后的波形变化和频谱分布情况3) 将上述滤波器改为中心频率为100KHz的带通滤波器，信号源为带外的90KHz和带内的100KHz的混合正弦信号，。 4) 用M文件实现上述低通滤波器。 -1) 2KHz and 8KHz to generate the mixed-signal, so that the signal through the above-mentioned filter, filter before and after observation of the waveform and spectrum distribution of the changes. 2) add to the signal in white Gaussian noise was observed before and after filtering and spectral waveform changes in the distribution of 3) will be replaced by the above-mentioned filter center frequency of 100KHz band pass filter, the signal source for the band and the band of 90KHz 100KHz Sine of the mixed signals. 4) achieve the above-mentioned documents with M low-pass filter.

api写的读写串口程序-api reader wrote Serial procedures

中文RFC文件，无需翻译，对学习很有帮助！

锁相环程序，用MATLAB 编写，用来防真琐相环的工作过程。有学习价值-A PLL S PROGRAM CODING IN MATLAB,WHICH CAN SIMULATE THE PROCESS OF PLL.IT S VALUABE FOR LEARNING

Author: Robert Morelos-Zaragoza Encoder/Decoder for a (31,21,5) binary BCH code-Author: Robert Morelos-Zaragoza Encoder/Decoder for a (31,21,5) binary BCH code

写24CXX的工具可以写24C04-24C512-24Cxx writing tool can write 24C04-24C512

为了增强BAN系统的抗突发能力和提高系统可靠性，应对经过扩频后的数据进行交织。交织器本质上并不改变信息的内容而是改变信息的结构，是把信道传输过程中产生的集中错误最大限度的离散化

GPRS拔号程序,可以实现拔号，GPRS拔号程序,可以实现拔号-GPRS dial

使用ntp（network time protocol）协议从网络时间服务器获取时间并显示出来-use the network time protocol get network time from some ntp server,and print