MATLAB_FDTD_SARY

SER of 16-PSK modulation

说明：  LMS语音信号去噪matlab代码，可以对一段较长的语音信号进行去噪(LMS speech signal denoising matlab code, you can denoise a long speech signal)

此程序包含心音信号的低通滤波、小波去噪、EMD分解、希尔伯特黄变换以及心音阈值定位一系列算法。输入为采集到的单通道心音信号。入口程序为main.m (A program that process heart sound signals to separete each heart sound clearly.Functions like Low-pass filters and Hilbert transformers are involed.)

基带信号周期采样的分析与仿真设计低通信号，对该信号进行周期采样，最后从采样数据中恢复原始信号；改变采样频率，给出相应的仿真结果；考察前端抗混叠滤波器的作用和必要性；分析后端理想恢复滤波器是否唯一。( Periodic sampling of the baseband signal analysis and simulation to design low pass signal, the signal is periodic sampling, finally recover the original signal from the sampled data changing the sampling frequency, gives the corresponding simulation results examine the front of the role of anti-aliasing filter and necessity analysis backend ideal restoration filter is unique.)

说明：  机器视觉啊；想下个东西哈哈哈哈哈哈哈哈哈(machine vision ,Think of the next thing)

本程序用于测量增强语音与纯净语音的对数谱距离，用于语音增强。对数谱距离越小，表明增强语音与纯净语音越接近，增强语音质量越好；反之，则增强语音质量越差。(Calculates the average log-spectral distance between CLEAN and NOISY signals. Frames are 25ms long with 60 percent (15ms) overlap, hamming windowed. RS is the remove silence option (default: 0) if 1, the program uses a Voice Activity Detector to find non-speech frames and eliminates them from calculation of LSD. FS is the sampling frequency (Default 10KHz). )

imlimentation hist matlab

this code is in matlab 2009 and can is for bin packing problem with first fit next fit and best fit

QPSK瑞利信道衰减仿真全过程，加成型滤波等。(QPSK Rayleigh channel simulation of the whole process of decay, plus shaping filtering.)

M序列自相关特性，并画出图像，可任意长度。 (M autocorrelation sequence, and draw the image, can be any length.)