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RS编译码的Matlab程序
RS编译码的Matlab程序，与陈文礼的《RS纠错编码原理及其实现方法》配套，已调试通过。(RS encoder and decoder ,matlab program)
- 2021-04-27 11:38:44下载
- 积分：1
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code
Eular方程的移动网格程序,用弧长函数做控制函数。(moving mesh for Eular equation)
- 2009-12-16 22:29:15下载
- 积分：1
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classification
说明： matlab环境下的模式识别分类例程。高维样本投影到低维空间进行分类识别。(matlab environment classification pattern recognition routines. High-dimensional samples are projected onto low-dimensional space for classification and identification.)
- 2008-11-19 17:25:27下载
- 积分：1
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pid
以中等纯度的精馏塔为研究对象，考虑到不等分子溢流的影响和非理想的汽液平衡，可以得到塔顶产品轻组分含量Y与回流量L之间的传递函数为：
其中由于现场环境干扰，输出带有测量噪声是（0，1）的正态分布序列，它的方差为ɑ=0.5。由于输出中带有很大的噪声信号，故将数字滤波技术中常见的低通滤波器由于偏差控制，滤掉其中的噪声信号，然后在对其进行PID计算，得到实际的控制量。在该方法在噪声较强的环境下，可以得到较好的控制效果。
控制要求：
1、 采用带低通滤波器的增量式PID将塔顶轻组分含量控制在0.99
2、 用ISTE法整定PID参数
3、 在控制过程中，到150周期加入幅度为-20 的阶跃干扰，在第300周期干扰消失。分析PID参数的抗干扰性。
(Medium-purity distillation column, taking into account ranging from molecular overflow and non-ideal vapor-liquid equilibrium, the transfer function between the light component content of the top product Y and the back flow L can be obtained as:
Because the field of environmental interference, output with the measurement noise is a normal distribution (0,1) sequence, its variance ɑ = 0.5. As with a lot of noise in the output signal, it will be common in low-pass filter in the digital filtering techniques due to the bias control, filter out the noise signal, then its PID, the actual amount of control. In the strong noise environment, you can get better control effect.
Control requirements:
1, using the incremental PID with a low-pass filter to the top of the tower content of light components in the 0.99
2, the method of ISTE tuning PID parameters
3, in the control process, to 150 cycles join the range of-20 step disturbance, disappearance of interference in the first 300 c)
- 2012-04-07 07:27:43下载
- 积分：1
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zhineg
用粒子群算法进行无功优化，比较实用，希望对大家有帮助(Particle swarm algorithm with reactive power optimization, more practical, we want to help, 14 nodes)
- 2015-04-16 17:09:52下载
- 积分：1
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dbri_subr
Clear out structures. This also intializes the command queue to all DBRI WAIT s since the WAIT opcode is 0.
- 2015-11-30 22:19:56下载
- 积分：1
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HHT
说明： 希尔伯特黄变换，经验模态分解，包络谱分析(Hilbert yellow transform, empirical mode decomposition, envelope spectrum analysis)
- 2019-12-16 22:09:33下载
- 积分：1
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noise
Removing noise from an image in matlab
- 2010-11-27 20:31:28下载
- 积分：1
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DigiPic
DigiPic 函数主要功能是将一个图片形式的表格函数,获取其数据,拟合为一个解析式.
便于计算机使用
DigiPic功能描述
在matlab 2013a运行环境下,启动DigiPic
首先,导入要分析的图表照片
取点建立坐标系,坐标系在取点时同时输入对应的实际坐标值,
拖拽坐标点使其位置在图片上尽量准确,便于后面坐标的自动计算.
按右键完成坐标系的建立.
在图片上原函数图线处取点.同时自动计算函数值
在拟合页,导入函数数据.选择相应的拟合函数.自动计算出最佳参数.
在拟合前,可人工在函数列表中修改,设定参赛,使计算更快.
选择保存目录,保存数据.数据以excel文件保存,图片和数据文件最好放在一个目录里.
excel文件数据可直接在其它分析软件中使用.
打开原分析文件时,可同时打开多个.( DigiPic function main function is to form an image in the form of a function, to get their data, fitting of an analytical style. To facilitate computer use DigiPic Description operating environment in matlab 2013a, start DigiPic First, import to be analyzed Charts Photos access point to establish a coordinate system, the coordinate system at the access point simultaneously enter the actual coordinate values corresponding to the coordinates of the point drag on the image to make it as accurate as possible location, easy to automatically calculate the coordinates back. completed by the right coordinates established. Uehara function graph in the picture at the access point. while automatically calculated in the fitting function value page data import function. choose the appropriate fitting function. automatically calculate the optimal parameters. before fitting, artificial modification in the function list, set the entry to make computing faster. choose to save)
- 2013-11-22 23:14:36下载
- 积分：1
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rosenbrock
说明： rosenbrock是数值最优化里的一个重要算例，运用MATLAB编程测试算例(rosenbrock numerical optimization is an important example in using the MATLAB programming test examples)
- 2010-04-17 08:26:40下载
- 积分：1
