Diffusion

说明：  用于计算高斯核函数，可以放在别的函数内使用，方便快捷(Used to calculate Gaussian kernel function, can be used in other functions, convenient and fast)

SET PARTITON INTO HIERARCHIAL TREES:IT IS THE GENERALISATION OF THE EZW ALGORITHM IN A MANNER THAT TENDS TO KEEP INSIGNIFICANT COEFFICIENTS TOGETHER IN LARGER SUBSETS

2010年中兴捧月杯程序设计大赛关于电路的一道编程题的代码(ZTE holding cup 2010 Programming Contest on the circuit of a programming problem on the code)

LTSA[19] is based on the intuition that when a manifold is correctly unfolded, all of the tangent hyperplanes to the manifold will become aligned. It begins by computing the k-nearest neighbors of every point. It computes the tangent space at every point by computing the d-first principal components in each local neighborhood. It then optimizes to find an embedding that aligns the tangent spaces.

matlab程序，用于画非双力偶机制，从完整的地震矩张量在较低的半球等于的投影。阴影部分表示方向积极的P波极性。(Program plots non-double-couple mechanisms from full seismic moment tensors in the lower-hemisphere equal are projection. Shadow area denotes directions of positive P-wave polarities.)

说明：  一个简单的matlab非线性拟合例子,使用了matlab提供的nlinfit函数.(A simple non-linear fitting matlab example, matlab using the function provided by nlinfit.)

经典异步电机直接转矩控制，的simulink仿真(Classic direct torque control induction motor, the simulink simulation )

软输出维特比译码方法的matlab实现.是个很典型的编程方法(Soft Output Viterbi decoding method matlab realize)

空间前方交会，对于2张影像，已知其外方位或相对方位，求地面坐标或模型坐标(Space forward intersection, and 2 images, known its exterior orientation or relative orientation, for the ground coordinates or model coordinates )

在Simulink平台上进行异步电机的矢量控制，并对电流环进行内模控制(Vector control of induction motor is carried out on Simulink platform, and the internal model of current loop is controlled)