fangzhen chenggxu

一个VC++串口通讯类调用实例，我的电脑不知何故为打开串口失败，如果成功的话，会有提示，并将文本框中的一段落发送到串口，进行数据通信，可能是我的电脑有问题，里面的串口操作类可用在其它的VC++应用程序中。

说明：  This document is to understand communication in a better way

matlab编写的MIMO-OFDM仿真程序，无解压密码(matlab prepared MIMO-OFDM simulation program, non-decompression password)

说明：  基于阿里云物联网驱动开发实例，设备物模型参考代码，服务部分。设备名称必须以:0001/:0002进行命名不可重复！具体请查看代码 0002 0003 0004 0005 代表温湿度设备0006代表水温 0007代表负压 0008代表二氧化碳 。。。。。。(An Example of Driving Development of Internet of Things Based on Aliyun)

说明：  我们描述了所提出的方法对超声（US）信号的压缩多路复用的直接应用。该技术利用压缩多路复用器架构进行信号压缩，并依靠频域中US信号的联合稀疏性进行信号重建。由于换能器元件具有压电特性，因此可以获得有关US信号频率支持的准确先验知识，并且可以在联合稀疏算法中使用。 我们在数值实验中验证了所提出的方法，并显示了它们在秩次缺陷情况下相对于最新方法的优越性。我们还证明，与没有已知支持的重建相比，该技术可显着提高体内颈动脉图像的图像质量。(We describe a direct application of the proposed methods for compressive multiplexing of ultrasound (US) signals. The technique exploits the compressive multiplexer architecture for signal compression and relies on joint-sparsity of US signals in the frequency domain for signal reconstruction. Due to piezo-electric properties of transducer elements, accurate prior knowledge of the frequency support of US signals is available and can be used in joint-sparse algorithms. We validate the proposed methods on numerical experiments and show their superiority against state-of-the-art approaches in rank-defective cases. We also demonstrate that the techniques lead to a significant increase of the image quality on in vivo carotid images compared to reconstruction without known support.)

modubus tcp协议中文版本-Chinese version of the agreement modubus tcp

#include float add(float,float); float sub(float,float); float product(float,float); float divide(float,float); void main() 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报

说明：  矩阵论，张贤达，扫描版，比较全面，matlab，机器人，学习必备(Matrix theory, Zhang Xianda, scanning version, more comprehensive, MATLAB, robot, learning essential)

从文章或段落中划分词语，识别词性和统计词频，从而提取能显示内容中心关键词和高频词语(Dividing words from articles or paragraphs, identifying parts of speech and counting word frequencies, so as to extract keywords and high-frequency words that can display the content center.)

说明：  Matlab设计升余弦滤波器和根升余弦滤波器的原理及升余弦滤波器的函数为rcosine,rcosfir,rcosiir和rcosflt的使用(The principle of designing the raised cosine filter and the root raised cosine filter with MATLAB and the use of rcosine, rcosfir, rcosiir and rcosflt)