bpsk-ldpc

计算任意层数平板波导结构。其中slabexec为主程序，readme中有程序使用的详细说明。可以计算任意层数的平板波导结构的有效折射率，光场分布和远场分布(PhotonicCrystals )

设计一超前校正环节，使得超调量为20 ，调节时间为1s。系统单位斜坡稳态响应误差为10 。并作出校正前后后的系统单位阶跃响应时域曲线加以比较。(Design a lead correction link, so the overshoot is 20 , adjust the time of 1s. Steady-state response of the system unit error of the slope is 10 . Made before and after correction and after the system unit step response curves are compared in time domain.)

　OFDM —— OFDM(Orthogonal Frequency Division Multiplexing)即正交频分复用技术，实际上OFDM是MCM Multi-CarrierModulation，多载波调制的一种。其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。此程序为ofdm仿真程序！(OFDM- OFDM (Orthogonal Frequency Division Multiplexing) that is orthogonal frequency division multiplexing, OFDM is the fact MCM Multi-CarrierModulation, a multi-carrier modulation. The main idea is: The channel is divided into a number of orthogonal sub-channel, high-speed data signals into parallel low-speed sub-data stream, modulated to be transmitted in each sub-channel. This program is ofdm simulation program!)

SQPLab program in Matlab

说明：  绘制的Z图形，供了解MATLAB的可视化功能(z=sin(sqrt（x^2+y^2）)/(sqrt(x^2+y^2)))

brsola 解非线性方程 经典算法 改进版的拟牛顿叠代，收敛很快了(brsola solving nonlinear equations of classical algorithm for improved version of the quasi-Newton iteration, the convergence soon)

说明：  GM（1，1）灰色预测模型预测发展趋势，并确定模型的精确合格度(GM (1,1) gray prediction model predicts the development trend and determines the accuracy of the model)

说明：  用matlab解决一些实际的问题,如交通,销售,动物繁殖等(using Matlab solve some practical problems, such as the transport, sale, breeding, etc.)

该代码用于分类，主要是基于pso优化svm参数的分类代码(The code used for classification, mainly based on pso classification code optimization svm parameters)

文件是经典卡尔曼算法matlab实现代码，包括线性卡尔曼滤波，扩展卡尔曼滤波，无迹卡尔曼滤波等，初学者有福啦~~(The code is mainly for kalman alogrithm by matlab,including linear kalman,expanding kalman,unscented kalman.it s very helpful for the green_hand about them.)