degrading

频谱分析中的倒频谱分析,在故障诊断和声音信号处理方面很常用(The inverted spectrum analysis spectrum analysis in fault diagnosis and sound signal processing is commonly used)

CDMA通信系统仿真程序，可以选择不同的PN码扩频调制，有信道编码，信道加入高斯白噪声，仿真不同的检测器的的性能(CDMA communication system simulation, simulation of different detectors performance)

33节点电力系统仿真，很实用，包含整套系统(33 node power system simulation)

a sample c embedded program for beginners

利用有限差分软件Flac3d生成人工地震波，并用于岩土工程动力分析(Using finite difference software Flac3d generate artificial seismic waves, and for dynamic analysis of geotechnical engineering)

直方图均衡化 直方图的均衡化可以使图像的像素灰度值动态范围变大，增强图像的对比度看起来更清晰。上图经过直方图均衡化方法处理后不再特别暗淡，其直方图反映出来的灰度的概率分布也相对比较均匀(Histogram equalization)

说明：  MATLAB6.0数学手册-第2章，一本易于掌握的数学手册，内容由浅入深，对于初学者能很快掌握。(MATLAB6.0 the math manual- Chapter 2, a mathematical manual is easy to grasp, easy-to-digest content for beginners can quickly master.)

短时交通流预测是实现交通流诱导的关键技术之一。短时交通流因为其不确定性等特点而使其预测很复杂。本文通过实地调查获取的交通流量数据，分别采用移动平均法、指数平滑法、AR模型法三种交通流预测方法进行短时交通流量预测。(Traffic flow forecasting is one of the key technologies to achieve traffic induced. Traffic flow because the characteristics of its uncertainty and make it very complicated to predict. Traffic data presented herein obtained through field surveys were used moving average, exponential smoothing, AR model method in three short-term traffic flow forecasting method to predict traffic flow.)

针对目前应用比较广泛的基于准循环矩阵构造的QC-LDPC(准循环LDPC)码的各种构造方法,分析比较了随机构造LDPC和各种准循环LDPC编码方法的优缺点,通过理论分析和MATLAB中的性能仿真,提出的相应的优化方案(Broader view of the present application of quasi-circulant matrices based QC-LDPC (quasi-cyclic LDPC) codes for the various construction methods, structural analysis and comparison of the random LDPC and various quasi-cyclic LDPC coding advantages and disadvantages, through theoretical analysis and MATLAB The performance simulation, optimization scheme proposed by the corresponding)

基于改进型模型参考自适应的PMSM参数辨识 PDF(Identification of PMSM Based Oil Improved Model Reference Self-adaptive Algorithm PDF)