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丁丽娟 数值计算方法 课后实验matlab部分上机答案 仅供参考(Dingli Juan numerical methods matlab part of after-school experiment on board the answer is for reference only)

ga源代码，使用matlab实现遗传算法的源代码(ga source code, the use of genetic algorithm matlab source code)

一幅彩色图像数字化后，在显示时颜色经常看起来有些不正常。这是色通道的不同敏感度，增光因子和偏移量造成的，称为三基色不平衡。这个校正过程称为彩色平衡。(After a digital color image in the display color always looks somewhat normal. This is a different color channel sensitivity factor and credit to offset caused by the imbalance as the three primary colors. This correction process is called color balance.)

说明：  为ifft后的时域数据加cp的MATLAB程序。(After the time-domain data ifft added cp' s MATLAB.)

this is a matlab program.

信号为两个正弦信号加高斯白噪声，各正弦信号的信噪比均为10dB，长度为N，信号频率分别为 和 ，初始相位 ，取 ， 取不同数值：0.3，0.25。 为采样频率。分别用Levinson递推法和Burg法进行功率谱估计，并分析改变数据长度、模型阶数对谱估计结果的影响。(Signal into two sinusoidal signals applied Gaussian white noise, the SNR of each sinusoidal signals are 10dB, a length of N, respectively, and the signal frequency, initial phase, take, take different values: 0.3,0.25. It is the sampling frequency. Respectively Levinson recursion method and Burg method for power spectrum estimation, and change the length of the data analysis, the impact of model order estimation result spectrum.)

说明：  Hopfield网络仿真实例参考:包含Hopfield网络设计实例及仿真源程序.(Hopfield network simulation reference: examples include the design and simulation of Hopfield network source.)

关于PID算法的基于matlab的simulink下的仿真，很好的资料，可以快速的帮助设计PID参数。(Under the simulink simulation matlab based on good information about the PID algorithm can quickly help design PID parameters.)

标准卡尔曼滤波对船的航线进行滤波处理，方便导航定位。(Standard Kalman filter for filtering routes boat handling, easy navigation and positioning.)

说明：  分数阶热传导工具箱可以用于求解分数阶微分方程中的热传导过程的求解，包含解析解与数值解的求解方式，含有显式，隐式和Crank–Nicolson求解方法。(The methods of solving models of heat conduction are described, namely analytical and numerical methods. In the case of numerical methods regards the finite difference method by using GL definition for the fractional time derivative. Implementation of these individual methods was realized in MATLAB. The two libraries of m-functions for the heat conduction model have been created, namely Heat Conduction Toolbox and Fractional Heat Conduction Toolbox.)