HEED

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)

face recognition thesis

自己编写的，使用morlet复指数小波，进行连续小波变换的程序。能帮助理解小波变换的算法。(I have written using complex exponential morlet wavelets, continuous wavelet transform performed procedures. To help understand the algorithm based on wavelet transform.)

数字图像处理中的用小波进行图像边缘检测！希望对大家有用matlab(Digital image processing for image using wavelet edge detection! Want to be useful to everyone matlab)

fingerprint recognization with more dip results

The purpose of the present work is to investigate inference and statistical prediction when the data and (or) the unknown parameter have large or infinite dimension.

本程序能够产生ami码，并且能够绘制其波形图和功率谱密度图(This procedure can produce ami code, and can draw their waveforms and power spectral density map)

FSK数字调制simulink仿真，很好的资料，希望对大家有帮助(FSK digital modulation simulink simulation, very good information, we hope to help)

本代码是解决结构动力学中经典的问题的源程序并且采用了gui设计，一定程度上实现了人工智能的作用(This code is to solve the classic problem in structural dynamics of the source and using the gui design, implemented to some extent the role of artificial intelligence)

Spatial structure and chaos in insect population dynamics