cognitiveradio

自己写的提取音频信号mfcc参数的算法，用matlab实现，欢迎大家参考(Write their own audio signal MFCC extraction algorithm parameters, using matlab to achieve, welcome to the reference)

计算米粒大小的总体分布对图像进行增强，结果显示该算法效果很好(rice detection matlab)

kpss test matlab- useful econometric tool

基于MATLAB的瑞利信道建模程序，可针对MIMO信道进行仿真(MIMO channel simulation based on MATLAB Rayleigh channel modeling program,)

改进的粒子群算法，与遗传算法，神经网络，模拟退火等算法相结合(An improved particle swarm optimization algorithm combined with genetic algorithm, neural network, simulated annealing algorithm and so on)

This program compress and recostruct using wavelets. We can select level of decomposition(here maximum 4 levels are given) of images using selected wavelet. For eg:-wavelets can be haar, db1, db2,dmey............... Decomposition can be viewed in figure. (Please note that select 256X256 image for better result.) Then compression can performed, PERFL2 give compression score. Then reconstruction can be performed. Each decompsition we can choose different threshold values. For each threshold value we can calculate mse,psnr,pq(picture quality), bit ratio etc. To get pq install pqs function . (This program compress and recostruct using wavelets. We can select level of decomposition (here maximum 4 levels are given) of images using selected wavelet.For eg:-wavelets can be haar, db1, db2, dmey ........ ....... Decomposition can be viewed in figure. (Please note that select 256X256 image for better result.) Then compression can performed, PERFL2 give compression score.Then reconstruction can be performed.Each decompsition we can choose different threshold values . For each threshold value we can calculate mse, psnr, pq (picture quality), bit ratio etc. To get pq install pqs function.)

Ultrasonic NDT for signal processing fault

Use of FFT to compute Continuous-Time Fourier Transform

自己編寫的matlab代碼，實現fft函數及ifft函數功能(I have written matlab code to achieve the original fft function and the ifft function)

MSE mean square error of Two Digital Images