chapter1

对二维图像进行分数阶傅里叶变换，可用于图像去噪。(Fractional Fourier transform of the image, and can be used for image denoising.)

模糊逻辑控制matlab工具箱，可直接调用函数。(Fuzzy logic control matlab toolbox, can call the function directly.)

一个Matlab实例，内有例题描述已经m文件(A Matlab example, there has been described m Example document)

让某一频率以下的信号分量通过，而对该频率以上的信号分量大大抑制的电容、电感与电阻等器件的组合装置。 (low-pass filter )

This example of AC-DC-AC converter illustrates use of Universal Bridge, Multimeter, and Powergui blocks, as well as discrete control blocks of the Extras library.(A 60 Hz, voltage source feeds a 50 Hz, 50 kW load through an AC-DC-AC converter. The 600V, 60 Hz voltage obtained at secondary of the Wye/Delta transformer is first rectified by a six pulse diode bridge. The filtered DC voltage is applied to an IGBT two-level inverter generating 50 Hz. The IGBT inverter uses Pulse Width Modulation (PWM) at a 2 kHz carrier frequency. The circuit is discretized at a sample time of 2 us)

二用户CDMA系统，信道为加性高斯信道，使用BPSK调制，15位M序列扩频，可以正确解扩解调。 输出为2用户的基带信号、扩频信号、PSK调制信号、解调信号的时域和频域特性，给出两个用户分别的误码率。 (Second, the user CDMA system, channel for the additive Gaussian channel, using BPSK modulation, 15 M Sequence Spread Spectrum, you can correct demodulation despreading. Output of 2 user' s baseband signal, spread spectrum signal, PSK signal modulation, demodulation signal time domain and frequency domain characteristics of the two users are given the bit error rate, respectively.)

一维扩散，耦合数值模拟主程序，这个程序还算比较清楚了。选自一篇文章的主程序(1D，Predator-Prey Model Simulation)

matlab环境下的数学建模水灾巡视的模型及其代码(Mathematical modeling flood model and code inspections)

duffing（多芬）混沌系统的混沌与临界混沌的图像(Duffing (more fun) Chaos and Critical Image Chaos)

这是数字水印算法中最简单的LSB算法,实现了嵌入和提取,验证可以正确运行.测试运行环境为:matlab6.5(This is the digital watermarking algorithm LSB most simple algorithm, and the embedding and extraction. Verification can correct operation. runtime environment for testing : matlab6.5)