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bessel函数求根，求解bessel函数的前20个根(root of bessel)

关于等波纹滤波器设计的文档，其中包括三种图形，脉冲响应，对数幅频特性，通带阻带波纹。(Corrugated filter design documentation on and so on, which includes three graphics, impulse response, logarithmic amplitude-frequency characteristics, the stopband passband ripple.)

matlab实用程序百例 matlab实用程序百例(matlab Utility Utility matlab 100 cases 100 cases)

在对比度小的灰度图像中加入噪声，再对图像进行滤波和直方图均衡化，对图像进行增强，并比较了不同参数时的增强效果(In contrast, the gray image by adding a small noise, then the image filtering and histogram equalization of image enhancement, and compared the effect of different parameters of the enhanced)

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The paper deals with the fuzzy control of a wastewater treatment process in which the organic substances are removed. The process is treated as a multivariable process having as control inputs the dilution rate, the aeration rate and the recycling rate and as output variables the dissolved oxygen and the substrate concentrations in the effluent. The process sensitivities with respect to the control inputs in the case of indirect control through the control of dissolved oxygen concentration and of the direct control of substrate were studied. In all cases fuzzy controllers were used. It was also shown that fuzzy control provides good results in the presence of disturbances and parametric uncertainties of the model.

对于线性系统，输入输出在某频率点为正弦，利用本程序可以得到改频率点的幅值比和相位差。data文件为两组数据，通过matlab读取xls文件，可以用来验证本程序。(For linear systems, input and output sine wave at a frequency point, the use of this program can change the frequency by the amplitude ratio and phase difference. data files for the two sets of data, read by matlab xls files, can be used to test the program.)

WiMAX技术发展及其在配电网通信中的应用，是下一点网络无线在电力中的应用(WiMAX technology development and its distribution network communications, the application is under 1:00 wireless network in the application of electricity)

利用细菌觅食算法实现物体聚类功能，属于基础未做改进的算法。(Bacterial foraging algorithm object clustering function is basis without making improvements to the algorithm.)

刘宝碇《不确定规划及应用》第4章例4.3的matlab程序。内容简单，但可以有效的帮助初学者理解随机模拟的原理。(Liu anchor " uncertain Planning and Applications" in Chapter 4 Example 4.3 matlab program. Content is simple, but can effectively help beginners understand the principles of stochastic simulation.)