2011_inertial-navigation_second

：介绍了扩展卡尔曼滤波算法和无迹变换(unscented transformation，UT)算法，并对扩展卡尔曼滤波算法(EKF)和无 迹卡尔曼滤波算法(UKF)进行比较，阐明了UKF优于EKF。在此基础上，提出了一种基于Unscented变换(uT)的高斯和滤 波算法，该算法首先通过合并准则得到适当个数的混合高斯模型，逼近系统中非高斯噪声的概率密度(: Introduction of the extended Kalman filter algorithm and unscented transform (unscented transformation, UT) algorithm, the extended Kalman filter algorithm (EKF) and unscented Kalman filter (UKF) for comparison to clarify the UKF is superior to EKF. On this basis, we propose an approach based on Unscented Transform (uT) and the Gaussian filtering algorithm, which first of all, by merging the appropriate number of criteria to be a mixture of Gaussian model, which was close to the system of the Central African Gaussian noise probability density)

说明：  截止频率在0.3Hz的巴特沃斯低通滤波器，采用二阶级联进行编程。(In the 0.3Hz cutoff frequency of Butterworth low-pass filter, used to program the second class together.)

利用边值问题求解器bvp4c求解常微分方程的数值解(The numerical solution of ordinary differential equations is solved by using the boundary value solver bvp4c)

"Statistical Sims.rar" Computing, mean, standard deviations, probability density functions, Autocorrelation functions from 1st principles of two sinusoidal waves.

车辆类型识别，简单的车辆模型识别技术，通过交通灯来检测一条道路上车辆的多少(trafficpatterns- a simple model of vehicular traffic on four roads all leading to an intersection controlled by a traffic light. It turns green for each of the four paths with specified durations. Tweak the traffic light durations to study how much traffic builds up on the different paths.)

说明：  PAM调制，实现模拟信号的数字抽样，能够启发matlab初学者的编程(PAM modulation, realize simulation signal digital sampling )

说明：  自己编写的改进人口迁移算法求解函数最优值，已实现(I have written to improve the migration algorithm optimal value function has been to achieve)

direct sequence spread spectrum technology for secure data tranfer

Matlab tutorial file

考虑噪声和弱行波的对测量影响的配电网行波测距。在PSCAD上搭建模型仿真获得数据导入MATLAB进行小波分析，最终实现故障测距，精度达到102m，(Consider the impact on the measurement of the distribution network traveling wave noise and weak traveling wave. Built on the model simulation PSCAD get data into MATLAB wavelet analysis, the ultimate realization of fault location with an accuracy of 102m,)