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matlab的直接序列扩频DSSS的Rake接收机仿真(DSSS direct sequence spread spectrum matlab the Rake Receiver Simulation)

说明：  matlab仿真延迟相乘法估计调制信号符号速率(matlab simulation multiplication delayed modulation signal symbol rate is estimated)

清理c程序注释的matlab小程序，仅供学习交流!(Matlab program to clean up the c programming notes for learning exchanges....)

An analytical symmetric Ricker pulse with a pulse period Tp = 0.5 and pulse peak acceleration ap = 0.8 g given by this matlab code. It can be used in dynamic analysis of structures in aspect of near-fault earthquake palse.

因子分析是指研究从变量群中提取共性因子的统计技术。最早由英国心理学家C.E.斯皮尔曼提出。因子分析可在许多变量中找出隐藏的具有代表性的因子。将相同本质的变量归入一个因子，可减少变量的数目，还可检验变量间关系的假设。(Factor analysis is the study of common factors extracted from the variable group statistical techniques. First proposed by British psychologist CE Spearman. Factor analysis can identify a representative factor to hide many variables. Will be essentially the same variables into one factor, can reduce the number of variables, but also test the hypothesis that the relationship between variables.)

In numerical analysis, the secant method is a root-finding algorithm that uses a succession of roots of secant lines to better approximate a root of a function f.(The secant iteration to find the zero of some non-linear function converges to zero if appropriate starting values are chosen. Although the convergence rate is not as good as the one of the Newton method, it may sometimes converge when Newton fails. The funtion should be defined as an inline function and two starting values are required to start the iteration. Please enter help secant from the Matlab prompt for usage information and examples. )

说明：  图论与网络论中求最短路径的DDijkstra算法(Graph theory and network theory to seek the shortest path algorithm DDijkstra)

to do KNN classifier

运动学问题 平抛运动 自由落体运动 有无阻力情况等

模糊邻域贪心向前粗糙集 基于胡清华博士程序改编 网上下载 非原创(rough set )