multiband_blending_matlab_code

<matlab在电子信息中的应用>一书中个章节的配套源代码。(1 )

calculating signal to noise ratio

批处理for语句从入门到精通，讲述批处理的for语句的机制，目录如下： 一 前言 二 for语句的基本用法 三 for /f 含变量延迟 四 for /r 五 for /d 六 for /l(Batch for statements entry to the master, tells the story of a batch of for statements mechanism, directories are as follows: one preface Two basic uses of the for statement Three for /f with variable delay Four for /r Five for /d Six for /l)

设计一个简单的GUI界面，对导入的音频文件进行时域特性分析。计算其时域波形、平均幅度、短时能量、短时过零率。对该音频文件进行加噪处理，分析其时域波形变化。设定一个固定时长，对该音频添加回声并保存为“*.wav”格式文件。 对音频文件的时域分析是对音频文件进行传输、降噪及其他再编辑的基础。其中短时能量可用作清浊音区分的标准和语音起始点的判断。短时过零率可用作判断有声段与无声段和从背景噪声中提取语音信号。 (Design a simple GUI interface that time domain characteristics analysis on import audio files.Calculate the average time domain waveform, amplitude, short-time energy and short-time zero crossing ratio.Add to deal with the noise of the audio files, analyze the changes in the time domain waveform.To set a fixed time, to add the audio echo and saved as a *. Wav format file. The time domain analysis of the audio file was transmitted to audio files, noise reduction and other editor again.The short-time energy voiced distinguish between standard and can be used as a clear voice starting point judgement.Short-time zero crossing ratio can be used as a judgment audio segment and silent segment and extract speech signal background noise.)

Video player to access single video frames for further processing. (e.g.: annotations, retrieve coordinates of single pixels, etc) The player can either be controlled using its GUI or remotely by method calls. It also features various events and properties allowing the user to keep track of the player state and playback process.

《MATLAB图形技术_绘图及图形用户接口》 MATLAB语言在数值计算，数据处理，自动控制，信号处理，神经网络，优化计算，模糊逻辑，小波分析，图像处理，统计分析等众多领域有着广泛的用途。(" MATLAB graphics _ graphics and graphical user interface" MATLAB language in the numerical calculation, data processing, automatic control, signal processing, neural network, optimization of computing, fuzzy logic, wavelet analysis, image processing, statistical analysis and many other fields have a wide range of applications .)

本程序给出了两种通信调制方式的matlab代码，可以提供给大家参考(This procedure gives the two communication modulation of matlab code that can be provided for your reference)

这是一个完整的OFDM系统建模，包括主程序OFDM 调制模块，解调模块，调制解调模块中包括BPSK,QPSK,16QAM,64QAM, 主程序包括循环前缀添加，加窗处理，频谱图、PAPR计算，误码率统计等功能。(This is a complete OFDM system modeling, including main program OFDM modulation module, a demodulation module, modulation and demodulation module include BPSK, QPSK, 16QAM, 64QAM, main program includes the cyclic prefix, windowing processing, the spectrum, PAPRcalculate the error rate statistics and other functions.)

3维点集Coherent Point Drift配准的matlab代码(Coherent Point Drift)

1/f Noise Characteristics of Sub-100 nm MOS Transistors