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bemd
Description: The function is called upon as follows:
a = bemd(im1)
im1 -> Image
a(:,:,1) => IMF 1
a(:,:,2) => IMF 2
a(:,:,3) => IMF 3
a(:,:,4) => Residu
- 2013-10-02 22:23:45下载
- 积分：1
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finite-element_de
使用有限元方法求解漫射方程,其中所需要的三维有限元网格来自netgen软件。压缩包中包含了网格数据文件和源代码。代码运行之前首先要注意修改源代码中的网格文件的存放路径。(solve the diffusion equation with finite method,the mesh which is used in it is generated by netgen。A matlab source code and a mesh file is include in it. The mesh file path should be set before running the sourcecode.)
- 2012-11-15 18:41:28下载
- 积分：1
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e2qaq2e
用欧拉角表示的飞行器姿态运动学方程在大角度时会出现奇异现象,而采用四元数来
表示,则可以避免这个问题。因此,飞行器运动学方程都采用四元数来表示。而飞行器的控
制规律都采用欧拉角来表示,且欧拉角表示姿态角比起四元数更加形象,更易于被人理解,
所以,在飞行器控制系统仿真设计的时候,需要四元数与欧拉角之间的转换。给定1 个欧拉
角,对应1 个四元数,因而欧拉角到四元数之间这种一一对应的关系使得欧拉角到四元数的
转换比较容易。但是,1 个四元数通常有1 个或者2 个欧拉角与之对应,它们之间不是一一
的对应关系,因而,四元数到欧拉角之间的转换比较困难。一般文献或者参考资料上的转换
仅仅适于欧拉角在- 90°～ + 90°之间的情况[1 ] 。文献[ 2 ,3 ]中给出了滚动轴在- 90°～ + 90°
之间变化,俯仰轴、偏航轴在- 180°～ + 180°之间变化的四元数到欧拉角的转换公式。本文
提出了滚动、俯仰和偏航3 个轴的欧拉角均在- 180°～ + 180°之间取值的全角度转换算法,
经过数字仿真证实,这个算法是完全正确的、而且很实用。(Euler angles of the spacecraft attitude kinematics equation at large angles appear strange phenomenon, and quaternion
, You can avoid this problem. Therefore, the aircraft kinematic equations using quaternion to represent. Aircraft control
The system of law Euler angles and Euler angles attitude angle than the the quaternion more image easier to be understood,
Therefore, in the design of aircraft control system simulation, you need to convert between quaternions and Euler angles. Given an Euler
Angle corresponding to a quaternion, which this one-to-one relationship between the Euler angles to quaternion makes Euler angles to quaternion
Conversion is relatively easy. However, a quaternion usually have one or two corresponding Euler angles between them than eleven
The correspondence relationship, therefore, the quaternion to convert between the Euler angle is relatively difficult. General literature or reference conversion
Only suitable for Euler angles- 90 ° to+ 90 ° betwe)
- 2013-05-10 22:42:47下载
- 积分：1
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jigou
原创，平面连杆机构动力学方程及仿真程序，实用！(Original, planar linkage mechanism dynamics equation and simulation program, practical!)
- 2021-03-24 16:29:15下载
- 积分：1
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imageGUI
运用MATLAB工具箱实现图像处理的GUI程序设计
1）图像的读取和保存。
2）设计图形用户界面，让用户能够对图像进行任意的亮度和对比度变化调整，显示和对比变换前后的图像。
3）设计图形用户界面，让用户能够用鼠标选取图像感兴趣区域，显示和保存该选择区域。
4）编写程序通过最近邻插值和双线性插值等算法将用户所选取的图像区域进行放大和缩小整数倍的操作，并保存，比较几种插值的效果。
5）图像直方图统计和直方图均衡，要求显示直方图统计，比较直方图均衡后的效果。
6）能对图像加入各种噪声，并通过几种滤波算法实现去噪并显示结果。比较去噪效果。7）频谱处理，能够分析图像频谱，显示频谱图。
8）设计巴特沃斯低通滤波对图像进行低通滤波处理，显示结果。
9）设计高斯高通虑波器，显示结果。
(The realization of the use of MATLAB image processing toolbox GUI Programming)
- 2020-12-28 09:59:02下载
- 积分：1
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sin
正弦波信号的均匀量化和线性编码
A/D 变换，实数的线性编码
D/A 变换，实数的线形译码(Uniform quantization of sinusoidal signal and linear coding A/D conversion, the linear coding real D/A conversion, real decoding of linear)
- 2009-05-25 21:29:27下载
- 积分：1
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Filtrer
codage programmes pour la parole
- 2010-05-10 23:33:05下载
- 积分：1
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cosine_filter
一组取值为+/-1的随机序列，每两个数据之间插入3个0，然后将序列通过一个设计好的根升余弦滤波器，并用周期图法和Welch法分别绘制信号的功率谱。再次通过根升余弦滤波器后用stem函数绘图。(A set of values is+ /-1 random sequence inserted between every two data 3 0, then the sequence through a root raised cosine filter designed, periodogram and Welch method to draw the signal powerspectrum. Stem function by root raised cosine filter with drawing again.)
- 2012-05-03 09:59:07下载
- 积分：1
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waveprop
功能函数，土体一维运动响应分析，计算由于SV或SH波引起的土层界面的位移。(Function [f, U, A, B] = WAVEPROP(input) calculates the displacement fields on the soil interfaces, caused by the wave propagation of a unitary VERTICAL SV or SH wave through an elastic multilayer soil profile.
)
- 2013-05-06 20:53:36下载
- 积分：1
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LDPC-code-construction
LDPC code construction
- 2014-01-14 04:14:36下载
- 积分：1
