db2

说明：  共同学习，共同提高，资源共享 移动通信中常用的turbo码相关程序(studying together, enhancing and sharing resources Mobile Communications common turbo codes related procedures)

说明：  Kalman 滤波的实际介绍 对于初学卡尔曼滤波的同学来说是一份非常好的参考资料哦！(Practical introduction to Kalman filter Kalman filter for beginner students is a very good reference Oh!)

Direct Torque Control, Induction Motor Vector Control Without an Encoder dtcc

分析正弦稳态电路，建立网孔电流方程求解电路电流，采用GUI直观形象的显示电流向量图(Sinusoidal steady state circuit analysis, mesh current equations to establish the circuit current, using an intuitive GUI displays the current image of the vector map)

本程序主要是对点迹数据进行滤波，形成航迹，并在雷达终端中进行显示。 本程序适用于阵列雷达，只显示一个阵面90度的范围。 由于通常雷达显示图以正北（显示器的正上方）为0度，与polar的零度不同，因此存在转化的问题。 (a program about radar display simulation)

语音识别是近年来发展非常迅速的一项计算机智能技术，广泛应用在语音控制、身份识别等多个领域。本次项目主要研究语音识别的预处理过程和特征参数的提取环节。通过对原始语音信号进行预加重和分帧、加窗，滤除低频干扰，提升对语音识别有用的部分，消除了部分噪音和失真。预处理之后进行信号的特征提取，主要选取了短时平均过零率和MFCC两个特征参数，应用matlab软件绘制波形图并提取特征参数矩阵，为之后的语音信号的识别打下了基础。(Speech recognition is a computer intelligent technology which has developed rapidly in recent years. It is widely used in speech control, identity recognition and other fields. This project mainly studies the pretreatment of speech recognition and the extraction of feature parameters. Through pre-emphasis, framing and windowing of the original speech signal, the low frequency interference is filtered out, the useful part of speech recognition is enhanced, and some noise and distortion are eliminated. After pretreatment, feature extraction of signal is carried out. Two feature parameters, short-term average zero-crossing rate and MFCC, are selected. Waveform diagram is drawn by MATLAB software and feature parameter matrix is extracted, which lays a foundation for speech signal recognition.)

code for object extraction using matlab

说明：  此图是hamming仿真等几个具体小仿真实验(This map is hamming simulation, and several specific small simulation experiment)

利用iTextsharp提取PDF文件中图片的控制台程序源码，根据原itextsharp.ExtractImagesFromPDF改进(This is a pick image console program, You can use pdf command to pick a image PDF file. )

用粒子群思想解决光谱分析问题,对学习光学知识的人很有帮助的，希望对大家有用(Idea of particle swarm to solve the spectrum problem, learning optical knowledge is helpful, and the hope that useful)