dimats

generate Fig. 1.27 of text

8psk in Rayleigh fading

从EXCEL中读取数据，提供了替换掉不理想数据的方法，还阐述了如何将数据写入EXCEL。(It can read data from EXCEL and provide method of replacing unsatisfactory data, but also explain how to write data to EXCEL.)

wind farm simulink in matlab with PSAT toolbox

为了精准、稳定地提取滚动轴承故障特征，提出了基于变分模态分解和奇异值分解的特征提取方法，采用标准模糊C均值聚类(fuzzy C means clustering, FCM)进行故障识 别。对同一负荷下的已知故障信号进行变分模态分解，利用 奇异值分解技术进一步提取各模态特征，通过FCM形成标准聚类中心，采用海明贴近度对测试样本进行分类，并通过计算分类系数和“卜均模糊嫡对分类性能进行评价，将该方法 应用于滚动轴承变负荷故障诊断。通过与基于经验模态分解的特征提取方法对比，该方法对标准FCM初始化条件小敏感，在同负荷故障诊断中表现出更好的分类性能 变负荷故障诊断时，除外圈故障特征线发生明显迁移，其他测试样本故障特征线仍在原聚类中心附近，整体故障识别率保持在100 ，因此，该方法能精确、稳定提取故障特征，为实际滚动轴承智能故障诊断提供参考。( In order to extract fault features of rolling bearing precisely and steadily, a method which is based on variational mode decomposition(VMD) and singular value decomposition was proposed for fault diagnosis using standard fuzzy C means clustering(FCM). First of all, the known fault signals measured in the same load but with different faults were decomposed by VMD, and the modes characteristics were further extracted using singular value decomposition technique,forming the standard clustering centers by FCM, and then the test samples were clustered by a Hamming nearness approach, and the classification performance was uated by calculating classification coefficient and average fuzzy entropy. At last, the method was applied in rolling bearing fault diagnosis under variable loads. By comparing with a method based on EMD, this approach is not sensitive to the initialization of standard FCM, and exhibits better classification performance in the same load fault diagnosis Fo)

通过MONTE GARLO仿真，说明一个使用二进制FSK并受到最坏部分频带干扰破坏的FH数字通信系统的性能。(MONTE GARLO through the simulation shows that the use of a binary FSK and are subject to the worst part of band interference and sabotage by FH digital communication system performance.)

通信专业的经典电子书，包括各种调制方式，OFDM、CDMA等典型系统和关键技术介绍，每部分内容附有matlab程序，讲解详细，值得珍藏！(Simulation and Software Radio for Mobile Communications)

基于simulink的AGV数字仿真，采用PID控制(AGV digital simulation based on Simulink and PID control)

说明：  介绍MIMO系统中的检测算法，重点是迭代检测的原理。MIMO是下一代无线通信的关键技术之一。(MIMO system introduced detection algorithm, with emphasis on the principle of iterative testing. MIMO is the key to next-generation wireless communications technologies.)

说明：  该程序对卷积码的编解码过程进行了simulink建模，并设置了合理参数。(The program shows the simulink model for code and decode of convolution process, and set reasonable parameters.)