nni

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). )

对经过分块算法隐藏的图像，进行信息提取，此算法适用于二值图像(After a block algorithm for the hidden images, the information extraction, this method is applicable to binary images)

matlab最大特征值计算，很简单，对矩阵中数据替换就可以。(matlab largest eigenvalue calculation is very simple replacement of the data matrix can.)

张量处理工具箱，包括了基本运算，有示例说明，很容易学懂，可以应用在信号处理领域(Tensor toolbox for signal processing)

校正雷达定位飞机的误差的MATLAB。通过建立概率密度空间球。(Correction MATLAB aircraft radar positioning errors. Through the establishment of the probability density space ball.)

DistMesh giving a singular FEM matrix?(Hi Anyone here with some experience of using DistMesh in finite element code? I m solving the scalar Helmoltz equation in an annular region in 2D: rho_1 < rho < rho_2 where rho_1 is the radius of a Perfect Electric Conducting cylinder and rho_2 is where the mesh is truncated using an Absorbing Boundary condition. Now, I ve written code to mesh the region myself (by dividing the region into annular rings and picking a fixed number of points on each ring) and I ve written another program which uses DistMesh to mesh the region. I get a nice solution using my own meshing code but the FEM matrix becomes singular when I use DistMesh. This is the DistMesh Code I used: Circle with hole rABC=1.5 rCyl=0.5 fdstring=sprintf( ddiff(dcircle(p,0,0, f),dcircle(p,0,0, f)) ,rABC,rCyl) fd=inline(fdstring, p ) box=[-2,-2 2,2] [p,N]=distmesh2d(fd,@huniform,0.04,box,[]) I tried changing box and the 0.04 value (initial edge length). But every time, the matrix becomes sin)

we investigate a new blind adaptive fractionally-spaced TEQ (FS-TEQ) for multicarrier systems in order to reduce efficiently intersymbol interference. We also exploit the cyclic prefix and fractionally-spaced TEQ to create a blind adaptive globally convergent channel-shortening algorithm.

蓝牙调频通信系统的编程仿真，对研究蓝牙技术和调频技术的人有一定的参考价值(Programming Bluetooth FM communication system simulation, Bluetooth and FM technologies of people have some reference value)

说明：  matlab的图像命令，，有详尽的函数说明，，便于查询(matlab image order, a detailed function description, easy to check)

基于电流滞环的模糊PI控制的异步电动机的SIMULINK仿真代码(Fuzzy PI control hysteresis current induction motor SIMULINK simulation code)