phaseMatch

一个多径信道仿真程序。其主程序为： Jakes_filter.m 产生信道多普勒功率谱形状 linear_fft.m作fft变换，并作相应平移。 linear_psd.m分析信号的psd qpsk_berest.m产生qpsk信号 random_binary产生随机信号源(a multi-path channel simulation program. Its main program : Jakes_filter.m have access Doppler power spectral shape linear_fft.m for f ft transform, and for the corresponding translation. Linear_psd.m analysis of the signals generated psd qpsk_berest.m letter qpsk No. random_binary generated random signal source)

鼠标游戏仿真，可模拟鼠标在图像上游走的轨迹，对MATLAB代码进行示例。(Mouse game simulation, can simulate the mouse on the image migration trajectory of MATLAB code examples.)

kolmogrov test for logistic map using matlab

这是《wcdma无线网络规划与优化》书上对应的源代码的第二部分，共有10个matlab源程序代码。("wcdma wireless network planning and optimization" book on the source code corresponding to the second part, A total of 10 Matlab source code.)

Extraction VTO. GAMMA, PHI for EKV MOSFET Model using Levenberg–Marquardt algorithm.

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)

在有限区域内分布的稀疏不均的、具有一定分布结构的海量数据集的高效、高精度聚 类问题是一个尚未完全圆满解决的难题。针对Affinity Propagation 聚类算法(AP)的不足之处， 提出了两个改进型的聚类算法(In a limited area of uneven distribution of sparse, has certain distribution structure of the mass datasets of high efficiency, high precision together Problem is a perfectly solved problem has not yet completely. For Affinity Propagation clustering algorithm (AP) of the deficiencies, Put forward the two improved version of the clustering algorithm)

说明：  matlab规划程序(matlab planning process)

说明：  很多matlab程序，很适合初学者进行学习哦！！(many matlab programs，you can study，if you ware newone！)

根据实测加速度振动信号，求取功率谱密度，为疲劳分析提供数据支撑(According to the measured acceleration vibration signal, the power spectrum density is obtained, providing data support for fatigue analysis.)