Siemens Gprs module installed and the data transceiver

matlab 代码，结合了hfss里面关于天线仿真设计的原理，利用在matlab里面对天线结构的仿真和分析，再结合hfss的分析，可以有效设计 天线。本代码主要是针对微带天线的设计和仿真分析，建立了图标分析，输入设计频率和尺寸就可以分析不同天线的增益，给出了天线的 极化图，便于分析学习

介绍了用visual c++编写应用程序调用api函数，从而简化了与硬件通信的过程。-introduces the visual c write applications called api function, thus simplifying the hardware and communications process.

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.

FFT子程序编写及应用和FFT对连续信号进行频谱分析-FFT routines and the preparation and application of continuous signal FFT spectrum analysis

Industrial network : Modbus, Ethernet

TFT液晶LCD的控制器HX8345的驱动程序-TFT LCD LCD controller driver HX8345

相当不错的网络编程学习的文档! 可以用来学习和加深网络编程基础和原理!-Fairly good documentation of learning network programming! Can be used to study and to deepen the foundation and principles of network programming!

一个典型的modbus应用，它是主设备程序，值得一看-Modbus a typical application, it is the main equipment procedures, see

VB串口编程比较全教程及代码，愿给大家有一定的帮助-VB Serial Programming Guide and compare the whole code, we would like to have some help

PC机与智能仪表通过串口进行通讯的示例,供初学这使用