ERA(1)

SOM-SVM模型是利用SOM的聚类特点，将含有相同特征的输入样本聚集在一起，并把离聚类中心较远的输入样本舍去。经过20%的样本压缩后，将含有代表性的小样本再送入SVM进行训练。本文的样本集通过实验平台采集，验证了基于支持向量机的频谱感知方法在实际数据测试条件下也能取得很好的感知性能。仿真结果表明，SOM-SVM模型在低信噪比下，频谱检测率接近100%，检测错误率也得到了很好的改善。(The SOM-SVM model is based on clustering characteristics of SOM, the input sample will contain the same features together, and the input samples from far down the clustering center. After 20% samples were compressed, the representative samples were sent to SVM for training. In this paper, the sample set is collected through the experimental platform, and the spectrum sensing method based on support vector machine is proved to be able to achieve good perception performance under the actual data testing conditions. The simulation results show that the detection rate of SOM-SVM model is close to 100% at low SNR, and the detection error rate is also improved.)

说明：  使用NMODBUS4开发的与松下PLC进行MODBUS通讯(MODBUS Communication with Panasonic PLC Developed by NMODBUS4)

Introduction to the LonWorks System

VB提取BMP中的半透明图片来制作实现带图标的工具条，主要是利用VB中的BitBlt API 函数来处理透明图片，最终的处理效果还算可以，若制作工具条时候，需要一些透明风格的BMP图标资源，可使用本工具打开BMP图像，提取其中的图标资源。

SVPWM程序，有仿真结果，有结果分析等详细资料。(SVPWM program, there are simulation results, results analysis and other detailed information.)

说明：  jQuery点击小图控制大图切换代码是一款切换的时候带有滑动效果的幻灯片代码。(JQuery click on the small picture to control the big picture switching code is a slideshow code with sliding effect when switching.)

说明：  master regular expression.

数值分析中Doolittle算法的仿真程序，我找了好久才找到的！-Doolittle algorithm in numerical analysis simulation program, I am looking for a long time to find the!

计算质数的一个公式.-calculation of a standard formula.

M-C实验与理论输出信噪比与检测概率之间的关系曲线的比较(The relation curve between the m-c experiment and the theoretical output SNR and the detection probability is compared.)