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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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zhongxinbijin
中心逼近式改进灰色模型滑坡形变预测预报代码，自己写的，带有详细的解释(Center approach to improve the gray model of landslide deformation forecasting code, wrote it myself, with a detailed explanation)
- 2013-02-28 22:04:27下载
- 积分：1
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steepest.m
Using the steepest descent to solve do the optimization work. You can either cll the function or use the difference method to derive the gradient
- 2014-08-27 04:19:31下载
- 积分：1
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3gpp-turbo
3gpp下的turbo码的编译码仿真程序,经测试可直接运行(3gpp turbo code in compiled code simulation program)
- 2012-10-07 09:58:28下载
- 积分：1
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cma
恒模算法的matlab实现，这是个人的一点看法，对于不同的电脑可能会有不同的小问题，仔细检查即可(Constant modulus algorithm matlab realize, this is a personal point of view, may be different for different computers, double-check to)
- 2013-04-29 14:31:38下载
- 积分：1
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proj_toolbox
投影bb法，用于求解非线性无约束最优化问题。(projected bb algorithm)
- 2012-11-23 19:45:13下载
- 积分：1
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802.11a-OFDM-MATLAB
IEEE802.11a系统级仿真完整程序，包含发送端，接收端以及信道建模等(IEEE802.11a complete system-level simulation, including the sending end, the receiver, channel modeling, can be used to run a bit error rate, frame error rate, etc.)
- 2021-04-08 15:19:00下载
- 积分：1
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eemd能量熵
有EEMD分解的源程序，可求解分量信号的能量熵(Source program containing EEMD to solve the energy entropy of component signals)
- 2021-03-02 19:29:33下载
- 积分：1
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pp
说明： 基于MATLAB的PQ法潮流计算的计算机编程(flow)
- 2010-05-16 12:11:06下载
- 积分：1
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mymorletcwt
morlet小波的源代码，对比morlet的源代码于matlab指令cwt的效果(wavelet morelet cwt)
- 2011-09-05 21:55:54下载
- 积分：1
