shuxuemoxing

Two photon absorption

Photonic crystal is discribed in this matlab code please notice that it does not compatible with any work you want to do,you may modify it to use.

A fast customizable function for locating and measuring the peaks in noisy time-series signals. Adjustable parameters allow discrimination of "real" signal peaks from noise and background. (A fast customizable function for locating and measuring the peaks in noisy time-series si gnals. Adjustable parameters allow discrimin ation of the "real" signal peaks from noise and back ground.)

设计巴特沃斯和切比雪夫滤波器，实现低通滤波，并计算滤波系数，给出效果图(Design a 20-order Butterworth filter, low-pass filter, and the filter coefficient calculation gives renderings)

高斯-赛德尔迭代、超松弛迭代、雅可比迭代。(The approximate solution of a linear equation set by Jacobi,SOR and Gauss_Seidel method.)

说明：  Viterbi编码器和译码器的MATLAB实现，适合各种编码方式，包括213，217，219等，是一种通用的程序(Viterbi encoder and decoder in MATLAB to achieve, for a variety of encoding, including the 213,217,219, etc., is a common procedure)

％直接型到并联型的转换 ％ ％[C,B,A]=dir2par(b,a) ％C为当b的长度大于a时的多项式部分 ％B为包含各bk的K乘2维实系数矩阵 ％A为包含各ak的K乘3维实系数矩阵 ％b为直接型分子多项式系数 ％a为直接型分母多项式系数 ％ ( Directly to the shunt-type conversion [C, B, A] = dir2par (b, a) C for when the b is greater than the length of a polynomial when part of B to include the bk of the K x 2 Victoria real coefficient matrix A contains the ak for the K x 3-dimensional real coefficient matrix b-type elements for direct polynomial coefficients a direct-type denominator polynomial coefficients)

用于将层速度转化为动校正速度，使用在地震勘探研究中。(Computing the Vnmo from Vstrata for horizontal strata in seismic research.)

说明：  里面包含了关于极化码的MATLAB仿真程序，注释很详细(It contains the MATLAB simulation program of polarization code. The notes are very detailed)

说明：  一个GUI界面，实现图像读入，滤波等功能，适合初学matlab的GUI者(A GUI interface, the realization of the image read, filter and other functions, suitable for novice matlab from the GUI)