Tperf

说明：  求正弦信号和余弦信号的傅里叶变化，以及图形之间的转变(Sine signals and cosine signals request the Fourier transform, and the graphics change between)

声纳技术 常用水声信号及其处理方法 内容 CW信号(Commonly used in underwater acoustic signal processing method)

在matlab平台上实现DTW孤立字识别，通过调用GUI界面实现(DTW in matlab platform to achieve isolated word recognition, by calling the GUI interface to achieve)

利用FDD进行模态分析 得到输入激励的后的频率(FDD modal iditification)

编程实现基于8×8子块的DCT图像变换，基于JPEG量化矩阵的量化与反量化，基于8×8子块DCT的图像重建；以一幅512×512、8比特/象素的图像为实验对象，计算重建后的PSNR。(Programming based on 8 × 8 sub-block of the DCT image transform, quantization matrix based on the JPEG quantization and anti-quantitative, based on the 8 × 8 sub-block DCT of the image reconstruction to a 512 × 512,8 bits/as Su-image for the experiment, re-calculation of PSNR.)

This program is used to Simulate the performance of (n,k)Reed Solomon code in AWGN channel with plotting the results and compare with the theoretical performance of this code in AWGN channel. The program also print the SNRdB, absolute snr ,simulated probability of error, exact probability of error in each steps

模式分类，提取的新特征，包括熵和尺寸特征，可分性好效果明显(pattern recognition ,new feature incuding entropy and size feature, better performance)

Matlab video anlaysis A packet is the basic unit of data in a transport stream. It consists of a sync byte, whose value is 0x47, followed by three one-bit flags and a 13-bit Packet Identifier (PID). This is followed by a 4-bit continuity counter.

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

A Novel Data-Aided Channel Estimation with Reduced Complexity for TDS-OFDM Systems