串口开发比备的手册，AT命令集，可以手把手的教你学会AT

现有数字信号自动调制识别方法大多只适用于无记忆信号，如PSK、ASK、FSK信号等。将有记忆 信号(MSK信号)和无记忆信号一起考虑，提出了一种改进的数字信号自动识别方法。该方法采用信号的瞬时统 计量作为特征参数，采用多层神经网络作为分类器。计算机仿真表明：当噪声采用高斯白噪声，并且信噪比大于 l5 dB时，识别率高于96％ ；当信噪比不低于l0 dB时，识别率不低于90％。-Existing digital signal automatic modulation recognition methods are mostly applied only to memoryless signals, such as PSK, ASK, FSK signals. Will have a memory signal (MSK signal) and non-memory signal into consideration, an improved digital signal automatic identification method. This method is the use of the instantaneous signal statistics as a characteristic parameter, the use of multi-layer neural network as classifier. Computer simulation shows that: When the noise using Gaussian white noise, and signal to noise ratio greater than l5 dB, the recognition rate is higher than 96 when the signal to noise ratio not less than l0 dB, the recognition rate of not less than 90.

FTDI test, by this example can try to use FTDI chips

TC35　AT指令资料！-TC 35 AT instruction material

Vector Quantization

ABB spabus通讯协议的实现，用C++实现。是从一个通讯程序中拿出来的，虽然有部分无用代码，但是从中可以拿出通讯协议的实现代码。

数字滤波器的C语言实现，包括高通、低通、带通滤波器-Digital Filter C language, including high- and low-pass, band-pass filter

小灵通系统网关程序 -PHS system gateway procedures

VB  modbus RTU测试用例，支持03和10指令，内有完整的读写功能封闭子程序和CRC校验程序在XP VB6.0上测试通过

基于串口收发的无线接收应用软件，供参考学习-Serial Transceivers Based on the reception of wireless application software for information learning

一个通讯库,非常好的. 一个通讯库,非常好的.-A communications library, very good. A communications library, very good.