qinzhende

说明：  用MATLAB做的地面动目标检测，通过杂波抑制，dcpa等等相位中心天线技术，来检测出地面的动目标。(this code is the result of the code ,in fact ,it is the result of the code ,it is using the radar to detect the moveing targets in the ground ,that is it.)

this is simple qpsk for matlab code

LDPC编码整个流程 ，编码，Sum-min译码 (LDPC encoding the entire process, coding, Sum-min decoding)

基于matlab简单计算器，和我们平时用的普通计算器一样(Matlab prepared easy to use calculator)

JPEG图像压缩和解压MATLAB程序，使用了DCT2、线性量化编码、zigzag变换和游程编码理论(JPEG image compression and decompression MATLAB procedures, using DCT2, linear quantization coding, zigzag transform and run-length coding theory)

It describes the fading in wireless channels

对一维信号序列进行，短时能量法和功率谱分析，并显示波形(right one-dimensional signal sequence, and short-term energy and power spectral analysis, and display waveforms)

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.)

包含了阵列信号处理的常见算法，应用小区域方差对比，程序简单，MIMO OFDM matlab仿真。( Contains a common array signal processing algorithm, Application of small area variance comparison, simple procedures, MIMO OFDM matlab simulation.)

说明：  Polar码的SCL,SC,BP,SCAN译码算法(decoding algorithm of polar code)