program2_2

实现粒子群算法的pid整定，适应于simulink模型的仿真，效果不错(Realize the pid tuning of particle swarm optimization algorithm, adapt to the simulation of simulink model, the effect is good)

高阶谱估计被开发出来，一直为人们所关注，只要信号和噪声中有一种是高斯分布，则累量的运用非常方便解决问题！(Higher order spectral estimation have been developed, has been a continuing concern, as long as there is a signal and the noise is Gaussian distribution, the cumulative amount of use is very easy to solve the problem!)

Implementation of a rule using a Groovy script.

求变截面梁的模态，目前只支持一处变截面，可以自己修改尺寸数据，简单好用(mode shape of the stepped cantilever beam)

说明：  关于雷达建模的一本书中很详细的Matlab代码，第3章：连续波和脉冲雷达。(Matlab code about radar system simulation, chapter3: continuous wave and pulsed radar.)

二维简单理想导体方柱在MATLAB环境下实现自动剖分，编码。自己整合方程并且求解，得到各点的场值(Simple two-dimensional perfectly conducting square cylinder in the MATLAB environment for automatic generation, coding. Their integration and for solving equations, the various points of market value)

基于二元系的wilson能量参数的拟合，用于求算二元系的活度系数。(wilson model energy function fitting)

图像harris角点检测matlab源代码，使用说明(images harris corner detection Matlab source code, use)

用矩形窗设计了一个FIR线性相位低通数字滤波器。截止频率0.5π，阶数为21阶。求出了系统函数并画出了幅频响应。(A rectangular window design with linear phase FIR low-pass digital filter. Cutoff frequency 0.5π, the order of 21 bands. Find the system function and plotted the amplitude-frequency response.)

watermarking with DCT