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Description: 选取windows系统自带的ding.wav信号作为分析对象，在Matlab软件平台下，利用函数wavread对音频信号进行采样，记住采样频率和采样点数，听一下原始声音sound(y, fs, bits)。
（2）音频信号的频谱分析，先画出音频信号的时域波形；然后对音频号进行快速傅里叶变换fft(y,N)，N取32768，画出信号的频谱特性，加深对频谱特性的理解。
（3）根据频谱，反演时域特性，画出时域波形。寻找幅值最大的两个频率，此频率除以fft点数在乘以采样频率就是信号的主频，即可合成信号的时域图形，听一下声音。
（4）对原音频信号进行1024点的分段付立业分析meshgrid
（5）根据主要频线合成音频，并画出时域图形，试听合成效果。
（6）采用线性插值（linspace）和傅立业反变换(fliplr, ifft)分别合成音频，并画出时域图形，试听效果。
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Size: 1024 |
Author: 何亮 |
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Description: meshgrid method in matlab
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Size: 1024 |
Author: Evgeny |
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Description: This guide can draw a mandelbrot figure. In default values it calculates Z=Z^2+C for 20 iterations, where Z initally equal to zero and C has the values of every pixel created by meshgrid function(built-in).
although mandelbrot equation is Z=Z^2+C you can change the degree of the equation between 1 - 50.
higher number in iteration, points in axes gives better results in image besides more resulting time.
to zoom an area of the figure you must aproximately choose the point and then change the center values to this point values then push Show Graph button. because of this is the first version there can be any lack of usage.
-This guide can draw a mandelbrot figure. In default values it calculates Z=Z^2+C for 20 iterations, where Z initally equal to zero and C has the values of every pixel created by meshgrid function(built-in).
although mandelbrot equation is Z=Z^2+C you can change the degree of the equation between 1- 50.
higher number in iteration, points in axes gives better results in image besides more resulting time.
to zoom an area of the figure you must aproximately choose the point and then change the center values to this point values then push Show Graph button. because of this is the first version there can be any lack of usage.
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Size: 8192 |
Author: Mike Gao |
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Description: meshgrid，gradient和quiver的基本用法，meshgrid，gradient和quiver的基本用法-meshgrid, gradient and the quiver of the basic usage, meshgrid, gradient, and basic use of quiver
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Size: 14336 |
Author: lin |
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Description: 各种matlab代码，实现各种功能，供查阅者参考，熟悉matlab软件的使用-x=linspace(0,1,21)
y=linspace(0,1,21)
[X,Y]=meshgrid(x,y)
z=(X.*Y)./(X+Y)
meshc(X,Y,z)
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Size: 11264 |
Author: wangchaoyang |
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Description: matlab中meshgrid命令的详解，以及plot3、mesh、surf、surfc、surfl、waterfall等命令的用法-The explanation of meshgrid command in matlab, and the usage of plot3, mesh, surf, surfc, surfl, waterfall and other commands
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Size: 9216 |
Author: 杨过 |
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Description: 用于高度计数据的绘图和网格化处理，利用matlab本身meshgrid函数-For altimeter data mapping and gridding processing
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Size: 1024 |
Author: 海月 |
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Description: 利用matlab采用meshgrid函数进行三维图形绘制，颜色、坐标轴都可以设置-based on matlab software to map 3D picture,the color can be altered
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Size: 13312 |
Author: 烟雨 |
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Description: plot 3d with matlab
with this code you can plot a surface with matlab functions: meshgrid, zeros, rastriginsfcn, meshc, xlabel, ylabel, zlabel, clear, clc
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Size: 1024 |
Author: msimchi |
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Description: 通过matlab画出心形的图案，压缩包包含3个代码，形成立体的彩色心形图案，且颜色可替换。-matlab heart meshgrid
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Size: 1024 |
Author: 孟思岐 |
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Description: 通过MATLAB对点云数据生成三维网格,并将三维网格做四边形网格细化处理。其中还有专门生成三维网格点云的MATLAB程序- This example shows how a triangular mesh can be resampled on a
meshgrid -generated square grid. We illustrate the usage of
both functions gridtrimesh and mxgridtrimesh . These two should
produce identical results. Funcion mxgridtrimesh is a compiled
MEX function written in C and should quicker than
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Size: 109568 |
Author: ddf dfd |
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Description: 这是用MATLAB实现开启和闭合操作的源代码
可适用于机械方面- clc clear
［x，y，z］=meshgrid（linspace（-1.3，1.3））
f=（x.^2+（9/4）*y.^2+z.^2-1）.^3-x.^2.*z.^3-（9/80）*y.^2.*z.^3
p=patch（isosurface（x，y，z，f，0））
set（p，‘FaceColor’，‘red’，‘EdgeColor’，‘none’）
daspect（［1 1 1］）
view（3）
camlight
lighting phong
legend（‘520，2014’）
set（gca，‘XTickLabel’，{‘19870722’，‘19940915’，‘20140318’，‘20140520’，‘forever’}）
set（gca，‘YTickLabel’，{‘anywhere’，‘cd’，‘hf’}）
set（gca，‘ZTickLabel’，{‘jy’}）
grid on
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Size: 3072 |
Author: 龙 |
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Description: 使用matlab中的meshgrid进行三维绘图，X,Y为坐标值，Z为误差值，用Z值大小及对应三维图上的颜色深浅表示误差大小的不同，对缺失的坐标点补全，并将误差赋值为0。有完整的代码和txt文件，点击即可运行，方便修改。-Using the meshgrid in matlab for three-dimensional drawing, X, Y for the coordinate value, Z for the error value, the size of the Z value and the corresponding color depth of the three-dimensional representation of the error of the size of the missing coordinate points to complete and error Assignment to 0. Have a complete code and txt file, click to run, easy to modify.
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Size: 31744 |
Author: 刘兰 |
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Description: 绘制函数的图形
1） x~[0, 30]
2） x,y~[-2, 2]
% 二维曲线
x = 0:30; % 冒号的功能…
y = exp(-x/10).*sin(x); % 向量运算，点号的功能
plot(x, y) % 绘制二维曲线
% 三维曲面
[x, y] = meshgrid( -2:0.2:2, -2:0.2:2 ); % 生成网格矩阵
z = x.*exp( -x.^2-y.^2 );
surf( x, y, z) % 绘制三维曲面(Draw a function graph.
Dimensional and three-dimensional curves)
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Size: 5120 |
Author: 小川lucky
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Description: ，用matlab绘制菊花 大家可以 使用此代码再次进行花的画法( data base
t0=linspace(0,2*pi)
for i=1:100
if rem(i,4)==0
t1(i)=NaN
else t1(i)=t0(i)
end
if rem(i,4)==2
t2(i)=NaN
else t2(i)=t0(i)
end
end
p=linspace(0,0.25*pi)
[xx,yy]=meshgrid(-2:0.05:2)
[xxx,yyy]=meshgrid([0.01 0.01])
drawing process
for i=1:10
if rem(i,2)==0
a=t1
elseif rem(i,2)==1)
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Size: 1024 |
Author: 龙 |
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