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拉东正变换与反变换，很好用的可逆变换，可用于面波反演。(Radon transformation and inverse transform, a reversible transformation well used, can be used for surface wave inversion.)

说明：  用matlab语言实现单频脉冲信号（CW）的时域波形、频域图像、模糊度图。(The time-domain waveform, frequency-domain image and ambiguity map of single frequency pulse signal (CW) are realized by MATLAB.)

This is matlab code to performs a single-level one-dimensional wavelet decomposition/construction based on lifting method

此程序能将一个信号进行EMD分解，已近调试过，绝对没问题，主程序为emd1.m，用户可以随意更改里面的信号函数Xn。(This program converts a signal with EMD nearly debugged, absolutely no problem, main program for emd1.m, the user can freely change inside the signal function Xn.)

Matlab code to determne the optimum pressure ratio for a brayton cycle gas turbine

子阵级自适应天线数字波束行程方法研究，线性最小化方差方法(Subarray adaptive antenna the digital beam travel method, linear minimum variance method)

lms matlab model for ics

Spectral analysis and correlation of stochastic discrete signals

声波方程的正演程序，注释非常清晰，并且可以显示正演波场快照。(Acoustic wave equation forward procedure, comments are very clear, and can display the forward wave field snapshot.)

it s about numerical analysis method using matlab or microsoft excel program.