DigitalSignalProcessing3

offline identification using neural network

It is a madlab code for EDFA gain with length of optical fiber. Hope it will help to the students.

用matlab实现的一个文本语音转换程序(a text to speech program compiled by matlab language)

compression rle compression et decompression rle pgm basic

决策树的matlab实现,包含训练和测试(Decision Tree matlab implementation)

分割算法 1.mean shift 的迭代过程只做了一次（为了简单） 2.对图像中的某一点进行平移时，只考虑了距离它小于2*hr的点，而不是图像中所有的 点。 3.实验过程中只用到了gauss核，虽然提供了method的选择，但在进行值域加权时只用 到gauss核，如果需要请自己改正。(mean shift algorithm )

小波降噪、时频分析等方法，系统地研究航天电子设备多余物噪声检测过程中各操作变量和微粒物理参数对声波频谱的影响。通过单因素试验，详细分析了微粒粒径、振动力学条件中加速度和频率等3因素对声音信号频谱分布的影响规律，比较了短时傅里叶变换和小波变换的特点。该结果为进一步识别多余物微粒的参数提供了指导依据(the complexity of the material interaction and the properties of the particles themselves make the received signal difficult to analyse. This paper based on particle collision sound wave mechanism, using the methods of wavelet de-noising, time-frequency analysis and so on, this paper systematically studies the influence of various operating variables and particle physics parameters on the sound spectrum in the process of detecting the noise of aerospace electronic equipment. Through the single factor test, the influences of the three factors such as acceleration and frequency on the spectral distribution of the sound signal are analyse in detail, and the characteristics of the short-time Fourier transform and the wavelet transform are compared. The result provides a guideline for further identification of the parameters of the extraneous particles.)

voice features for the speech recognition softeare

混合罚函数法，结合了外罚函数法和内罚函数法的有点，适用于matlab程序(Mixed penalty function method, a combination of external and internal penalty function method a little penalty function method for matlab program)

该程序是基于距离估计和NNSS的室内定位算法仿真程序。(The program is based on distance estimates and NNSS indoor location algorithm simulation program.)