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发动机万有特性曲线的画法以及代码MATLAB(Engine universal characteristic curve drawing method and MATLAB code)

本程序可进行植被物候研究，用于提取植被返青期、枯黄期及生长季长度等物候参数。(This procedure can be carried out vegetation phenology studies, used to extract reviving vegetation, yellow and growing season length of phenological parameters.)

1d photonic crystal simulation

This tool is a simplification of the ballpivoting algorithm. It imagines a bella eating a delaunay traignulation in order to extract a manifold surface. It requires a single parameter: radius of the fretting ball. Ball Fretting Given a uniform sampled filled point cloud returns a tight triangulation. Input: ■tetr: a set of tetraedrons, nx4 array. If the cloud is not tesselated yet you need to call a delaunay triangulator prior calling this function. ■p : nx3 array, 3D set of points. ■r : the only parameter of the algorithm, the radius of the fretting ball Output: ■t : triangles ids, nx3 array ■tnorm: normals of triangles with outwards orientation

实现双馈异步风力发动机的仿真模型，可以直接调用的s函数(model of wind turbine with doubly fed induction generators)

用双线性变换法设计IIR数字滤波器 滤波就是将外界干扰的不需要的频率滤除掉，一面影响要测试数据的结果。比如如果是心电波的话，如果这是外界有很大的噪声干扰，滤波就是把不必要的信号给抑制掉，以便对心跳的正常测试。通过图比较，滤波后的明显比之前的要平滑，就是滤去干扰噪声的结果。采样间隔对实验有影响，取的过大会导致频率混叠。(Bilinear transformation method using digital filter IIR filter design is to outside interference filter out unwanted frequencies, while the impact to test data results. For example, if it is so heart waves, if this is a great noise outside interference, filtering is unnecessary signal out to the curb in order to test the normal heartbeat. Through chart comparison, after filtering than before to smooth the noise interference is the result of least squares. Sampling interval of the experiment affect take-off frequency of the General Assembly leading to aliasing.)

一个计算均匀圆阵角度估计模糊集的程序。通过计算阵列流形的弧长参数，求得阵列的模糊生成集。(A calculation of the angle estimation with uniform circular arrays ambiguity set procedures. Array manifold by calculating the arc length parameter, obtained an array of ambiguity generating set.)

说明：  matlab建模教程 目录： 1、线性规划 2、整数规划 3、非线性规划 4、动态规划 ………………(matlab Modeling Tutorial)

dqo axis to a-b-c axis

Reed-So lomon (RS)码是目前最有效、应用最广的差错控制编码之一,是一类具有很强纠错能力的多进制BCH 码,它既可以纠正突发误, 也可以纠正随机错误。视、磁记录系统等方面。本文用matlab详细仿真实现RS编译码(Reed-So lomon (RS) code is the most effective, the most widely used one of error-controlling codes, is a kind of strong ability of the error correction into BCH code, it can correct mistakes sudden, also can correct random errors. RS code is mainly used in real-time higher mobile communications system, the deep space communications, digital satellite television, magnetic recording system, etc. In this paper, using matlab detailed simulation (RS decoder)