baozhuang

使用EM算法，估计8PSK调制方式下的信噪比(EM algorithm using the estimated signal to noise ratio under 8PSK modulation)

2000年SCI上发表的两篇开创性的流行学习文章的仿真代码。关于LLE和ISOMAP的仿真程序，其中详细说明了实现的步骤。(2000 SCI published two seminal study popular articles simulation code.)

通过编程建立函数的最佳逼近。并且可估计它的最佳逼近误差(The best approximation of function is established by programming. And the best approximation error can be estimated.)

sweb a pedestrian MATLAB web session starter

PDstrip the open source strip theory computer code

主要基于Matlab平台开发的，特征提取仿真程序，主要用于生理信号的特征提取。(Mainly developed based on Matlab platform, feature extraction simulation program, mainly for physiological signal feature extraction.)

This paper propose a Firefly algorithm (FA) for optimal placement and sizing of distributed generation (DG) in radial distribution system to minimize the total real power losses and to improve the voltage profile. FA is a metaheuristic algorithm which is inspired by the flashing behavior of fireflies. The primary purpose of firefly’s flash is to act as a signal system to attract other fireflies. Metaheuristic algorithms are widely recognized as one of the most practical approaches for hard optimization problems. The most attractive feature of a metaheuristic is that its application requires no special knowledge on the optimization problem. In this paper, IEEE 33- bus distribution test system is used to show the effectiveness of the FA. Comparison with Shuffled Frog Leaping Algorithm (SFLA) is also given.

说明：  一种matlab实现网络划分的算法，主要用于复杂网络中的社区发现(A matlab algorithm for network partition, which is mainly used for community discovery in complex networks)

利用四阶亚当斯隐式公式求解常微分方程初值，并计算它与精确解的误差(Using fourth-order implicit Adams formula for solving initial value ordinary differential equations, and calculate the error with the exact solution)

当信噪比低，小信号输入时噪音严重，在整个音域的声音明显变得浑浊不清，不知发的是什么音，严重影响音质。信噪比的大小是用有用信号功率（或电压）和噪声功率（或电压）比值的对数来表示的。(When the signal to noise ratio is low, serious small signal input noise, the sound of the entire range becomes significantly turbid, I do not know what made the sound, seriously affecting the sound quality. Size is the number of the signal to noise ratio by the ratio of desired signal power (or voltage) and the noise power (or voltage) represented.)