speech

近红外光谱平滑去噪算法，由于光谱仪得到的光谱信号中既有有用的信息，同时也叠加着随机误差，即噪声，而这种方法能取到很好的去噪作用。(Nir denoising smoothing algorithm, as a result of the spectrometer for spectrum signal in both the useful information, and superposition of the random error, the noise, and this method can get very good denoising effect. )

noise reduction method

hht_toolbox工具箱用 时频分析必备 大家共同学习(HHT toolbox for HHT time-frequency analysis )

用于根据切削原理生成螺旋锥齿轮齿面散点。(Used to generate helical bevel gear tooth surface scatter according to the cutting principle.)

针对基本无线传感器网络DV-Hop定位算法中，计算平均跳距时产生偏小误差的原因，提出了基于平均跳距修正的DV-Hop算法。改进算法中，引入信标节点个数比例、所有信标节点平均跳距的最大值以及所有信标节点平均跳距的平均值三个因子，并采用它们对平均跳距进行修正。通过Matlab软件对算法进行仿真验证，结果表明，改进后的 DV-Hop 算法有效降低了未知节点的定位误差，是一种可行的无线传感器网络节点定位解决方案。(DV-Hop localization algorithm for wireless sensor networks, we calculate the average hop distance small error of reasons, raised the DV-Hop algorithm based on the average hop distance correction. Improved algorithm, the proportion of the number of nodes, the introduction of beacons, the beacon node average maximum jump distance as well as all the beacon nodes average jump from the average of three factors, and their average hop distance correction. Matlab software simulation results show that the improved DV-Hop algorithm effectively reduce the unknown node positioning error, the solution is a viable wireless sensor network node positioning algorithm.)

DPCM method description

本文分析了语音数字信号的采集来源以及其预处理。通过实例，利用Matlab对语音信号进行时频变换与分析，同时构造一个固定频率的干扰信号，对两个信号进行合成，设计数字滤波器，实现对语音信号的F IR、IIR滤波处理，最后在时域和频域中对信号进行分析比较。(This paper analyzes the sources of voice digital signal acquisition and its pretreatment. By example, voice signals using Matlab time-frequency transform and analysis, and construct a fixed-frequency interference signals, the two signal synthesis, design digital filters to realize the speech signal F IR, IIR filtering, and finally time domain and frequency domain signal analysis and comparison.)

线性预测分析的基本原理,线性预测分析的基本原理,线性预测分析格型法的解法,线谱对的分析法(The basic principle of linear predictive analysis, the basic principles of linear predictive analysis, the solution of linear predictive analysis lattice method, the line spectrum pair analysis)

自己建的双馈式异步风力发电机模型，经过一系列封装后建成的整体模型。(Build the doubly fed induction generator model, and after a series of integrated model of the whole model.)

关于混沌的控制，同步等一些理论的英文文章的具体翻译。(On chaos control, synchronization and some other specific theories of the English translation of the article.)