mohuzhengliu

tile demo..............................................

离散时间信号的傅立叶变换的各个例子的算法，很不错的，希望对大家有用(discrete-time signal Fourier Transform algorithm examples, very good, we hope to useful)

Eigenfunctions of integrable planar billiards are studied — in particular, the number of nodal domains, ν of the eigenfunctions with Dirichlet boundary conditions are considered. The billiards for which the time-independent Schrö dinger equation (Helmholtz equation) is separable admit trivial expressions for the number of domains. Here, we discover that for all separable and nonseparable integrable billiards, ν satisfies certain difference equations. This has been possible because the eigenfunctions can be classified in families labelled by the same value ofm mod kn, given a particular k, for a set of quantum numbers, m, n. Further, we observe that the patterns in a family are similar and the algebraic representation of the geometrical nodal patterns is found. Instances of this representation are explained in detail to understand the beauty of the patterns. This paper therefore presents a mathematical connection

解析wrf数据，并转化为格点数据,并可以定位任意时次的数据(convert wrf data to grid data)

有关于哈达玛矩阵的测量矩阵matlab代码,重构算法为TVAL3算法(About Hadamard matrix of measurement matrix matlab code, algorithms reconstruction algorithm for TVAL3)

说明：  无线中继协作下的AF、DF性能传输分析，信道采用的瑞利信道。(AF and DF performance transmission analysis under the wireless relay cooperation, Rayleigh channel adopted by the channel.)

根据DFT的基二分解方法，可以发现在第L（L表示从左到右的运算级数，L＝1，2，3…M）级中，每个蝶形的两个输入数据相距B=2^(L-1)个点，同一旋转因子对应着间隔为2^L点的2^(M-L)个蝶形。从输入端开始，逐级进行，共进行M级运算。在进行L级运算时，依次求出个2^(L-1)不同的旋转因子，每求出一个旋转因子，就计算完它对应的所有的2^(M-L)个蝶形。因此我们可以用三重循环程序实现FFT变换。同一级中，每个蝶形的两个输入数据只对本蝶形有用，而且每个蝶形的输入、输出数据节点又同在一条水平线上，所以输出数据可以立即存入原输入数据所占用的存储单元。这种方法可称为原址计算，可节省大量的存储单元。附件包含算法流程图和源程序。(err)

用于四阶龙格库塔数值积分，做matlab仿真实验时会用到。(For the fourth-order Runge-Kutta numerical integration, doing matlab simulation experiments will be used. )

基于MATLAB的数字滤波器，带有gui界面(Matlab-based digital filter, with GUI interface)

曹梦龙 仿真大实验 实验五 包括所有有用数据(Caomeng Long simulation experiment in Experiment 5, including all useful data)