picuture_fun

用matlab对设计的作为LTE上行链路的sc-fdma系统进行仿真(Design using matlab as LTE uplink system is simulated sc-fdma )

This routine draws a circle with center defined as X_CENTER,,Y_CENTER, radius as a scaler RADIUS.

在风力发电的模拟系统中,风速模拟是一个重要的环节,正确的风速模型不仅能够很好的 反应实际风速变化情况,而且能够给风力发电系统研究提供正确的源参数。本文用 Matlab/Simulink建立了风速组合数学模型,该模型将风速分为基本风速、阵风、渐变风速和噪声风 速4部分,仿真结果表明该模型能够理想的反应实际风速 (Wind speed simulation is an important part in the simulation of wind power generation system, wind speed model can well reflect the actual wind speed changes, but also to provide the correct source parameters to the wind power system studies. Wind speed combination of mathematical model using Matlab/Simulink, the model will be divided into basic wind speed, gust, gradient, wind speed and noise wind wind simulation results show that the model can be the ideal response to the actual wind)

小波包分析提取振动信号中的特征频率，ML法能够很好的估计信号的信噪比,利用自然梯度算法。( Wavelet packet analysis to extract vibration signal characteristic frequency, ML estimation method can be a good signal to noise ratio, Use of natural gradient algorithm.)

OFDM正交多载波传输技术具有抗无线传输多径效应影响的能力，正逐步成为各种宽带无线数字传输系统(OFDM Orthogonal multi-carrier transmission technology with anti-multipath effects of wireless transmission capacity, is becoming a variety of broadband wireless digital transmission system)

The PSNR is most commonly used as a measure of quality of reconstruction of lossy compression codecs (e.g., for image compression). The signal in this case is the original data, and the noise is the error introduced by compression

matlab实现图像加网功能，利用抖动算法(implementation of digital screening,using dithering algorithm)

对识别的指纹进行二值化处理，可以让指纹的纹路更清晰。(On binary fingerprint recognition processing, fingerprint patterns can be more clear.)

说明：  惯性导航的Matlab程序，可以直接运行(Inertial navigation of Matlab procedures, can be directly run)

基于matlab采用jpeg压缩 实现对图像的解压缩处理.dct编码等(Achieved using jpeg compression matlab-based image compression solution. Dct coding)