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基于偏微分框架的全局快速活动轮廓分割模型(Framework based on partial differential global fast active contour segmentation model)

说明：  用级数PI/4 = 1 -1/3 + 1/5 -1/7+…求PI的近似值，要求取前1000项来计算。(With a series PI/4 = 1-1/3+ 1/5-1/7+ ... seeking an approximation of PI, demanded before the 1000 data.)

对于高程数据的处理，通常需要各种格式之间的转换，此程序是将usgs高程数据转为dem格式的数据。(For the treatment of elevation data, usually need to convert between various formats, this program is the USGS elevation data to DEM format data. )

LMS算法及仿真实现，在等高线性能平面上绘制出了滤波器系数的运动轨迹和最优滤波器系数，以及错误概率的变化趋势。针对迭代次数变化和迭代步长变换分别作了相关讨论。(LMS algorithm and the simulation realization, in contour performance plane drawing out of the filter coefficient trajectory and optimal filter coefficient, and the change tendency of the error probability. According to the iteration times change and iterative step length transform the discussion related respectively. )

说明：  采用AR法进行的风速时程模拟，数据运算正常，可用于调试和改进。(The wind speed time history simulation with AR method has normal data operation and can be used for debugging and improvement.)

说明：  短时频分析,程序中通过加窗截取信号，分析其时频关系(short time-freqence analysis)

IEEE14节点5机测试系统matlab下的详细模型，包含系统数据和Simulink仿真模型。(IEEE test system for 14-bus-5-generator, can be employed directly by matlab. It contains data files and simulink files.)

利用matlab仿真小波变换原理有很多实用的程序(matlab about wt)

说明：  该算法实现了窄带信号的波束形成，用的是Bartlett波束形成器(This algorithm achieved a narrow-band signal beam forming, using a Bartlett beamformer)

说明：  提供坐标轴缩放、转换、设置的matlab环境模版。(Provide axes scaling, conversion, set the template of the matlab environment.)