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该文给出了一种利用matlab系统实现频谱分析与显示的方法。该方法对语音信号进行基于FFT的短时频谱分析，频谱图的伪彩色映射及显示。(This paper presents a system implementation using matlab spectrum analysis and display methods. The method is based on the speech signal short-time FFT spectrum analysis, spectrum and display pseudo-color mapping.)

说明：  MATLAB编写的图形色彩绘制程序，功能十分强大(Written in MATLAB graphics color drawing program, a very strong function)

说明：  锅炉汽包水位控制系统是火力发电厂中的一个重要的热工控制系统，汽包水位的 控制大多采用传统PID控制方式。但是，传统PID控制器参数的整定是在获取对象数学 模型的基础上，根据某一整定规则来确定的，不能进行在线调整，难以适应锅炉汽包 水位这样一个复杂多变的控制系统，其控制效果往往难以满足要求。 本文应用模糊控制技术，设计了一种二输入三输出模糊自整定PID控制器，对锅 炉汽包水位进行控制，实现了PID参数的自适应调节。利用MATLAB对控制系统进行 仿真。结果表明，该控制器自整定能力及鲁棒性比传统PID控制器更强，响应速度快、 精度高，同时对虚假水位有较好的控制效果。(Boiler water level control system is an important thermal power plant in the thermal control system, boiler water level Control most of the traditional PID control method. However, the traditional PID controller tuning parameters for objects in mathematics Model based on the rules to determine a whole and can not be adjusted online, it is difficult to adapt to the boiler drum Water level control such a complex system, its control effect is often difficult to meet the requirements. In this paper, fuzzy control technology, designed a two input and three output fuzzy self-tuning PID controller, the pot Steam drum level control, the PID parameters to achieve the adaptive regulation. The control system using MATLAB Simulation. The results show that the controller auto-tuning capability and robustness more than the traditional PID controller, fast response, High precision, while the water level has better control of false results.)

在matlab绘图中指定坐标轴范围的函数，奉献给大家！ (Graphics in matlab axes specified in the scope of the function, dedicated to you!)

求二维点对问题，但是没有实现不知道怎么做？(the distans of some points )

学习二进小波变换用于图像增强，很好的例子，可以实现非线性增强。希望对大家有帮助。(study wavelet transform for image enhancement, good example, can achieve a nonlinear increase. We want to help.)

Writing C + + code, is to allow the use ns2 select the channel, which is our experimental multichannel implementation, hoping to share.

Matlab script for solution to the driven cavity problem using the FDS algorithm, which discretizes the Stokes form of the Navier-Stokes equations.

Steganography LSB by 2 bits method Find and hide information in a image

说明：  国外的CIC补偿滤波器设计文件，非常有用(Abroad, CIC compensation filter design files, very useful)