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数学优化分析综合工具软件包
- 1stOpt 是七维高科有限公司(7D-Soft High Technology Inc.)独立开发, 拥有完全自主知识产权的一套数学优化分析综合工具软件包。在非线性回归,曲线拟合,非线性复杂模型参数估算求解,线性/非线性规划等领域首屈一指; 1stOpt 应用范围 1) 模型自动优化率定 2) 参数估算 3) 任意模型公式线性,非线性拟合,回归 4) 非线性连立方程组求解 5) 任意维函数,隐函数极值求解 6) 隐函数根求解,作图,求极值 7) 线
EZW算法的过程详解和Matlab代码
- EZW算法的过程详解和Matlab代码(1)构建扫描次序表(修正小波树结构)写出EZW算法的Matlab程序,可以实现图像的任意级别的小波分解和重构、以及任意精度的EZW编解码过程。下面,我们以一幅16*16的Lena局部图像经过3级小波分解后的小波数据为例详细的说明EZW算法的编解码过程,并给出相应的Matlab代码。-Explain the process of EZW algorithm and Matlab code (1) building a scan list (Amendment
MATLAB
- 产生长度为1000的标准正太分布的随机信号,画出时域波形及频谱; 采用u=255的非均匀PCM编码,每符号为8bit,画输入-输出关系图; 计算信号量化噪声比(SQNR); 信道误码率为10-3; 解码,并画出u律反变换后的信号时域波形及频谱。 扩展要求: 采用均匀PCM、量化级数可变、信道误码率可变。 - have a standard len
WIM2_ITU_ChannelModel_ver4
- The channel modeling work package WP1 of IST-WINNER project provided a Matlab implementation of the WINNER Phase II Model (referred as WIM this onward). The main purpose of the WIM channel models is to generate a radio channel realisations for a
3level_inverter
- 三电平SVPWM算法逆变器,基于MATLAB例子,自己做了修改-Three-level inverter SVPWM algorithm, based on MATLAB examples, make changes
A2008
- awimg=rgb2gray(im1) tic [accum, circen, cirrad] = CircularHough_Grd(rawimg, [20 30],5,50) circen toc figure(1) imagesc(accum) axis image title( Accumulation Array from Circular Hough Transform ) figure(2) imagesc(rawimg) co
LastWave_3_0.windows
- LastWave,开源项目,信号处理,跨平台,主要以小波应用为主,涉及图像处理和音频处理,非常好的源代码-LastWave is a signal processing oriented command language. The 3.0 version is based on the GNU wxWidgets library. It allows LastWave to be truly multiplatform : it runs on both X11/Unix (or Li
otsu
- OTSU Gray-level image segmentation using Otsu s method. Iseg = OTSU(I,n) computes a segmented image (Iseg) containing n classes by means of Otsu s n-thresholding method (Otsu N, A Threshold Selection Method from Gray-Level Histograms, IEEE
EXP01
- Program for : 1) ZOOMING , 2) SHRINKING & 3) GRAY LEVEL RESOLUTION -Program for : 1) ZOOMING , 2) SHRINKING & 3) GRAY LEVEL RESOLUTION
jiyuzuixiaoerchengfagaijindesuijituoyuanjiance
- 为了提高数字图像中椭圆检测的效率和准确性,提出了一个基于最小二乘法的改进的随机椭圆检测算法. 该算法随机选取图像中的3 个边缘点,在以这3 个点为中心的窗口内,从边缘点中拟合出可能椭圆,并通过随机选 取的第4 个边缘点来确认可能椭圆. 利用直接最小二乘法椭圆拟合的特性,引入可能椭圆边缘点收集和椭圆重新 拟合的迭代过程来提取最终的椭圆参数. 通过对含有不同噪声的仿真图片和包括残缺椭圆的实际图片的实验表 明,新算法的改进是有效的. 与原算法相比,新算法降低了对参数的依赖性,提高了检测
svpwm_3level_final1
- svpwm of open loop three level inverter
MATLAB_Medical_Image_Process_Experiments
- MATLAB医学影像处理实验(内含14个原代码及教学的说明) (1)Plot a sine function using MATLAB, and write the data into a file (2)Read data from a file, plot a SINC function, and append the result back to the same file (3)Plot a Gaussian distribution using MATLAB (4)Fo
wavecompression
- The following implementation steps have been made for the devised algorithm, which is based on 2D-wavelet. 1. Reading an image of either gray scale or RGB image. 2. Converting the image into grayscale if the image is RGB. 3. Decomposition of im
hw2
- 1.对一个256*256的图像进行DCT变换得到图像D,将D得斜下角数值置为零,然后进行DCT反变换. 2.对源图像进行K-L转换 1和2比较-1.Get a grey level image which size is N*N. (For example, 256*256, however, N = ), and partition to 8*8 sub images. 2.. Apply DCT to these sub images, and get the transfo
wavelet
- 采样小波包分解语音信号,分解为3层,并求出分解系数-Speech signal using wavelet packet decomposition,decomposing 6 level,and attain decomposition coefficient
spwmnpc
- npc 3-level inverter spwm matlab
q
- 三篇关于MATLAB,模糊PID控制,液位控制与仿真的文章-3 on MATLAB, Fuzzy PID control, level control and simulation of the article
svpwm3level
- 三电平级联npc逆变器的空间矢量调制的matlab仿真策略-3-level npc inverter svpwm model
Data Acquisition
- 下面给出了48项泽尼克多项式,外加一项常数项。需要注意的是,读者并不需要严格按照下文所示的顺序排列这些泽尼克项,实际上在不同的应用和机构会采用不同的排列顺序。 表中的#0项是个常数或者说是平移项(piston term),这一项的系数也代表了平均光程差;而#1和#2项分别是x和y方向的倾斜项(tilt terms),#3代表了聚焦,因此,#1到#3项代表了波前的高斯或者近轴特性;#4和#5项代表了像散和离焦,#6和#7项代表彗差和倾斜,而#8项代表了3级像差和离焦,也就是说#4到#8项为3级相
物元分析法(matlab)
- 物元分析法由我国数学家蔡文在 20 世纪 80 年代提出. 应用物元法建立多指标评价模型,可以针对复杂问题建立形象化模型,定量化得出评价结果,从而较完整、准确地反映事物的综合水平。利用matlab编程,进行如下步骤计算:1、待判物元的确定;2、经典域、节域的确定;3、关联函数;4、综合关联度(Matter-element analysis method was put forward by Chinese mathematician Cai Wen in 1980's. Applying mat