一个Floyd算法、dijkstra算法，matlab编写

Triangular Mesh Refinement This function will refine any closed triangular mesh with 4-split spline interpolation.

三次样条插值函数边界条件由实际问题对三次样条插值在端点的状态要求给出.以第1边界条件为例,用节点处二阶导数表示三次样条插值函数,用追赶法求解相关方程组.通过Matlab编制三次样条函数的通用程序,可直接显示各区间段三次样条函数体表达式,计算出已给点插值并显示各区间分段曲线图.(Cubic spline interpolation function from the real problems of boundary conditions cubic spline interpolation is required to give the state of the endpoint. Boundary conditions in the first example, the second derivative with node represents a cubic spline interpolation function, solving equations associated with catch-up method group. preparation of common procedures cubic spline function through Matlab, can directly display each range segment cubic spline function body expression, to the point of interpolation has been calculated and displayed for each sub-interval graphs.)

利用MATLAB软件对OFDM系统做出仿真。仿真中采用QPSK调制技术，并加入高斯白噪声，最终得到QPSK星座映射图以及BER曲线图。由仿真结果可以看出，OFDM在高斯信道具有良好的抗噪声性能，误码率较低。

由于被动雷达中广泛应用的测角方法应用于宽带信号测向时存在着各种问题，将互谱法应用于被动雷达宽带信号测向。针对互谱法测向中相位模糊与测角精度存在的矛盾，提出用两频率点的频率差和对应的互谱相位差值的关系来解相位模糊的频率-相位差值法，突破了互谱法中阵元间距不大于信号最小波长一半的限制，有效的保证了测角精度。最后对相位差值进行修正，解决相位跳变问题，用两个阵元即可实现宽带信号测向。  

本程序使用MATLAB实现了FSK的调制过程，还实现了其对应的解调(This procedure achieved using the MATLAB process of FSK modulation, but also the realization of the corresponding demodulator)

主要是希尔伯特——黄HHT中的EMD分解过程的工具箱，将其导入matlab的工具箱中，就能使用！(Mainly Hilbert- Huang HHT in the toolbox EMD decomposition process will import the toolbox matlab, you can use!)

说明：  古典密码 一共4种古典密码的matlab实现，算是一个很实用的加密基础训练(A total of four kinds of classical classical password password matlab implementation, be a very useful basis for training of encryption)

雷达信号处理,matlab仿真,雷达系统设计的一组MATLAB程序(radar signal processing, Matlab simulation, radar systems designed a group MATLAB program)

基于rls算法的多麦克风降噪matlab程序代码(Matlab code based on the the rls algorithm of multi-microphone noise reduction)

planet rendering program implementation