seismic response_spectrum

利用MATLAB中小波信号“db4 对信号分解和重构，去除噪音(MATLAB signal using wavelet )

Hamming 15, 11 Viterbi encoding and Decoding

DIGITAL WATERMARKING USING LSB

本文主要介绍了功率谱估计中古典谱估计中的周期图法和现代谱估计中的 AR模型Burg算法，对这两种算法进行了原理说明，并对其进行了仿真，通过结果分析比较其优缺点。 (In this paper, power spectral estimate the Burg AR model algorithm in the the periodogram in classical spectral estimation method and the modern spectral estimation, the principle description of these two algorithms and compare their excellent analysis of simulation results shortcomings.)

说明：  求解动态有限元方程，板式轨道过渡段动力响应分析源程序(Dynamic finite element equations to solve, slab track Dynamic Response Analysis of the transition source)

fit_rayleigh_pdf - Non Linear Least Squares fit of the Rayleigh distribution. given the samples of the histogram of the samples, finds the distribution parameter that fits the histogram samples.fits data to the probability of the form: p(r)=r*exp(-r^2/(2*s))/s with parameter: s format:result = fit_rayleigh_pdf( x,y,W,hAx ) input: y - vector, samples of the histogram to be fitted x - vector, position of the samples of the histogram (i.e. y = f(x,a)) W - matrix or scalar, a square weighting matrix of the size NxN where N = length(y), or 0 to indicate no weighting is needed. hAx - handle of an axis, on which the fitted distribution is plotted output: result - structure with the fields s - fitted parameter VAR - variance of the estimation type- weighted LS or not weighted LS iter- number of iteration for the solution

说明：  ofdm仿真程序，包括发射机和接收机两个部分，信道估计，(ofdm simulation program, including the two parts of the transmitter and receiver, channel estimation,)

这是在MATLAB中开发的OFDM调制系统中的同步算法仿真，对于同步算法的理解有很好的辅助效果(This is developed in MATLAB in the OFDM modulation system synchronization algorithm simulation, the synchronization algorithm have a good understanding of the effect of the auxiliary)

matlab有关数字信号处理方面的程序，希望能够给大家一点帮助。(Matlab the digital signal processing procedures, hoping to give us some help.)

虚拟频谱分析仪。vi可以好好的学习参照设计(Virtual spectrum analyzer. vi)