Fuhe

This source code for calculate of element of satellite.

rayleigh with N. you can change the #of N(rayleigh with N. you can change the#of N)

卡尔曼滤波的递推程序源码,是用MATLAB实现的,非常有用(source code of Kalman filter)

matlab design of Butterworth Band Pass Filter

error correcting matlab codes for primitive polynomial, vector speces

说明：  2011-zhang-Dynamic Modeling of Scraper Conveyor Sprocket

简洁但是经典的Root Music DOA 算法，是用多项式求解解的方法来寻找DOA(Direction of Arrival ) (The simple but classic Root Music of DOA algorithm is a polynomial solution method to find the DOA (the Direction of Arrival))

为了对数据进行准确的预测，建立了双隐层BP神经网络，并提供了源数据，实现了准确的数据预测。程序能够执行，误差较小，输出接近真实值。(To accurately forecast the data, we build the two-hidden layer BP neural network and provide the original data, which will forecast the data. The program can be executed with small error which will be close to the real data.)

说明：  matlab学习书籍，pdf格式，书名：MATLAB6.5应用接口编程(matlab learning books pdf format, the title: MATLAB6.5 application interface programming)

elasticsearch-river-mongodb 源码,主要讲述elasticsearch 和 mongodb 同步索引实现。可以实现自己编译。(Elasticsearch-river-mongodb source code, including elasticsearch and mongodb synchronization index. Can be compiled.)