Electives

强混沌干扰中的谐波信号提取程序.算法参考<物理学报>,50(6),2001.(strong chaotic interference harmonic signal extraction procedures. Algorithm Reference)

相控阵天线阵列的密度加权matlab程序代码。 运行gui.m文件 lmax.m和lmin.mLinear_func.m最后几行被调用，放在和Linear_func.m路径相同的文件夹下即可 运行后command window里第一条分割线上面是第一幅图的几个值，第二条分割线上面是第二幅图的几个值。其中，peak_first是数值最大的峰值，peak_second是数值第二大的峰值(第一旁瓣)，theta_var是与 peak_first最近的左右两个谷值横坐标的距离。 因为是找半峰值点的，因为都是小数，在数组里没有正好等于主瓣幅值一半的点，只有接近一半的点，所以要设定一个范围比如大0.05或小0.05都认为是半峰值，但是有的数组里0.05的范围还是太小，所以可能报错。(Phased array antenna array the density weighted matlab program code. The last few lines of the run gui.m the file lmax.m lmin.mLinear_func.m call, same placed Linear_func.m path folder above the dividing line of the command window to run the first picture the several values ​ ​ above the dividing line several values ​ ​ of the second image. Wherein, peak_first numerical maximum peak the peak_second is the the numerical second largest peak (first sidelobe), the theta_var is the abscissa and peak_first recent about two valley distance. To find half the peak point are decimal, the array does not just equal to main lobe amplitude half points, only nearly half points, so you want to set a range, such as 0.05 or 0.05 are considered semi-peak some array, but the range of 0.05 or too small, it may be an error.)

本程序利用粒子群算法（PSO算法），求BANANA函数在（1，1）附近的极小值(This program makes use of particle swarm optimization (PSO algorithm), find BANANA function (1,1) near the minimum)

用MATLAB编码数字通信系统了该，源代码(hshdfkewkjfosjl)

说明：  一种用于生成二维数据分布图形的函数,在观察大数据量的数据集合是很有效.(A function to plot the distribution of 2-dimensional data)

偏最小二乘法是一种数学优化技术，它通过最小化误差的平方和找到一组数据的最佳函数匹配。 用最简的方法求得一些绝对不可知的真值，而令误差平方之和为最小。(Partial least squares method is a kind of mathematical optimization technique, it through the minimum error sum of squares to find a set of data the best function matching. With the Jane s method for some absolutely unknowable true value, and make the sum of error square to a minimum.)

基于Nd:YAG/Cr4:YAG的半导体激光器被动调Q ，速率方程组仿真(经典四阶龙格库塔法)。(the rate equation simulation of Nd:YAG/Cr4:YAG passively Q-switched solid laser.)

对MATLAB的MAT文件进行读书，用C++语言实现(read and write mat files, using C++ Language)

说明：  一点遗传算法的matlab程序，本人初学算法，积累不多，这个是转载的，比较清晰易懂，适于初学者(Point genetic algorithm matlab program, I am learning algorithm, the accumulation of small, this is reproduced, more user-friendly, suitable for beginners)

It contains sample files of Extended Kalman Filter (EKF).