read_data_nc

在matlab环境下对图像进行对比度以及亮度处理，可以输入对比度参数的大小。(Image contrast in the Matlab environment, you can enter the size of the contrast parameter.)

医学超声成像权威仿真软件Field Ⅱ使用说明书(Authoritative medical ultrasound imaging simulation software Field Ⅱ manual)

此程序为自适应信号处理中，求取LMS与GAL算法结合的性能的程序。(lms and gal algorythm)

摘要 本文提出了一种新的基于极大似然法的椒盐噪声滤波算法。在传统BP 算法中引入 了极大似然估计，在训练样本时能够在考虑网络逼近行为的同时对噪声分布进行估计。而且 针对椒盐噪声模型构造了新的鲁棒误差函数，从而使算法本身的抗干扰性增强。实验结果表 明了该算法与传统BP 算法相比具有更好的滤波性能。(Abstract This paper presents a new maximum likelihood method based on impulse noise filter. In the traditional BP algorithm, the introduction of the maximum likelihood estimation, the training samples can also be considered acts of the network approach to estimate the noise distribution. Salt and pepper noise and model construction for a new robust error function, so that the enhanced anti-jamming algorithm itself. Experimental results show that the algorithm compared with the traditional BP algorithm has better filtering performance.)

dSPACE实时仿真系统是由德国dSPACE公司开发的一套基于MATLAB/Simulink的控制系统开发及半实物仿真的软硬件工作平台，实现了和MATLAB/Simulink/RTW的完全无缝连接。dSPACE实时系统拥有实时性强，可靠性高，扩充性好等优点。dSPACE硬件系统中的处理器具有高速的计算能力，并配备了丰富的I/O支持，用户可以根据需要进行组合；软件环境的功能强大且使用方便，包括实现代码自动生成/下载和试验/调试的整套工具。dSPACE软硬件目前已经成为进行快速控制原型验证和半实物仿真的首选实时平台。本文件为dSPACE-controldesk基础教程 (dSPACE real-time simulation system is developed by the German a dSPACE-based MATLAB/Simulink control system development and semi-physical simulation platform of hardware and software work to achieve and MATLAB/Simulink/RTW' s completely seamless. dSPACE real-time system with real-time, high reliability, scalability and good. dSPACE processor hardware system with high-speed computing power, and with a wealth of I/O support, users can be combined as needed powerful software environment and easy to use, including the realization of automatic code generation/download and test/debug set of tools. dSPACE software and hardware has become a fast control loop simulation and prototyping real-time platform of choice.)

l粒子滤波，matlab程序，欢迎大家交流，共同提高(l particle filter, matlab program, welcome to share and improve together)

利用firpmord和firpm函数设计双带通滤波器，其指标为，第一带通指标：f =4kHz,f =5 kHz ,f =3.6 kHz ,f =5.4 kHz 第二带通指标：f =6kHz,f =7 kHz ,f =5.6 kHz ,f =7.4 kHz 通带衰耗A <3dB，阻带衰耗A >40dB，抽样频率f =20kHz。(Double belt pass filter using firpmord and firpm function design, for its indicators, through the first area index: f = 4 kHz, f = 5 kHz, f = 3.6 kHz, f = 5.4 kHz The second bandpass indicators: f = 6 kHz, f = 7 kHz, f = 5.6 kHz, f = 7.4 kHz Pass band attenuation A < 3 db, stop-band attenuation A > 40 db, f = 20 KHZ sampling frequency.)

自己编的，用两电平电压型PWM整流器实现网侧单位功率因数整流，SVPWM调制(control rectifier with svpwm)

cyclic convolution and discrete spread spectrum

matlab code for baseline and for remove detrend file