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noise
图片去噪:对一幅图像加入不同的噪声(随机点噪声、椒盐噪声等),选取不同的方法去噪,比如说邻域平均、中值滤波、图像迭加等,比较对于不同的噪声,不同的方法哪种更好(Image denoising: for an image by adding different noise (random-dot noise, salt and pepper noise, etc.), select a different method of denoising, for example, the neighborhood average, median filter, image superposition and so on, compared for different noise, different methods which better)
- 2007-11-08 21:00:13下载
- 积分:1
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PID--MATLAB
包含微型计算机控制的案例,尤其以PID控制为主(microcomputer control)
- 2012-12-04 18:16:16下载
- 积分:1
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Hertzian-dipole
高斯脉冲波源下的磁偶极子场的计算,并与fdtd法进行了比较(The analytical solution to the Hertzian Dipole (with a Gaussian pulse source) problem for comparison with the FDTD simulation.)
- 2014-02-24 22:35:17下载
- 积分:1
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QSGS
说明: 运用随机四参数生成法形成多孔介质,可更改孔隙率(Using random four parameter generation method to form porous media, the porosity can be changed)
- 2021-03-04 16:19:32下载
- 积分:1
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亲测可用的基于二阶统计量的盲源分离算法源程序
ICA(主分量分析)算法和程序,是小学期课程设计的题目,基于kaiser窗的双谱线插值FFT谐波分析,一种流形学习算法(很好用),BP神经网络用于函数拟合与模式识别,Matlab实现界面友好。
- 2023-08-21 14:55:03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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text_watermarking
this script is used for watermarking a text using converting text to 0, 1 symbols. this program uses Huffman coding and decoding for increasing capacity . finally returns 0 or 1 for validity check.
- 2015-03-07 18:26:18下载
- 积分:1
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主动毫米波论文实现
实现主动毫米波异物检测及分割,内部附有论文,及参照论文的实现代码(To achieve active millimeter wave foreign body detection and segmentation, with papers inside, and reference to the implementation of the code)
- 2020-07-16 09:28:49下载
- 积分:1
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speaker_recognition
说话人识别系统,界面友好,可以对实时录音的说话人进行识别(Speaker recognition system, user-friendly, real-time recording can be carried out to identify the speaker)
- 2021-04-20 14:38:50下载
- 积分:1
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matlabdrawing
MATLAB的一个作图教程,简单,但挺实用的(A mapping MATLAB tutorial, simple but very useful)
- 2010-07-08 20:33:37下载
- 积分:1