allpass5

This function stretch and scale image histogram

无约束多维极值问题,适合数学计算,优化分析等极值问题的求解(Unconstrained multi-dimensional extremum problem, is suitable for mathematical calculations, the extremum problems of solving optimization analysis, etc )

基于!"#$" 的移动通信中多径衰落信道的仿真(Mobile communications based on !" #$" multipath fading channel simulation)

本文介绍了matlab常用数值函数，包括通用命令、运算符和特殊运算符、编程语言结构、基本矩阵函数和操作、基本数学函数和文件输入与输出等。(This article describes the commonly used numerical matlab functions, including general orders, operators and special operators, programming language, structure, function and basic matrix operations, and basic mathematical functions such as file input and output.)

优秀论文及配套源码。电压暂降是动态电能质量问题中最受关注的热点之一。大量新型电力电子设备的广泛使用对电网电能质量的要求越来越高，而且电压暂降在电网中又具有一定的传播性。因此，无论从电网还是用户都迫切需要对电压暂降进行研究和治理。对电压暂降的检测是解决电压暂降的前提条件，故本论文主要对电压暂降的检测方法进行研究。 本文分析了国内外短时电能质量扰动检测的研究现状，并着重讨论了短路故障、感应电动机启动和变压器激磁三种电压暂降扰动情况下电压暂降的特性；在此基础上选择了基于S变换的短时电能质量扰动检测方法，从S变换的结果S模矩阵及S复矩阵中提取出所需数据并以此来对各种扰动情况下的电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析。仿真结果表明，该方法很好地实现了对电压暂降各特征量的检测。 (The voltage sag is one of most hot topics in dynamic electric energy problems. Masses of new power and electron facilities have been put into use widely, requiring a high quality of electric network and power, chiefly the voltage sag. Moreover, the voltage sag can spread in the electric network. So people have every reason to research and control the voltage sag. However, before developing the voltage sag, people have to detect it. On account of the above, this essay will chiefly focus on the detect methods of the voltage sags. In this paper, the status of the short duration power quality disturbance based on the different method are researched firstly, and emphasizes the characteristic of the voltage sag under the situation of the three kinds of voltage sag disturbances like the short circuit fault, induction motor start-up and transformer excitation. On the basis of the above, the short duration power quality disturbance detection method based on S transform is chosen. The complex m)

说明：  无线传感器网络路由算法，采用最短路径，先搜索节点的一跳范围的距离，再搜索两跳的距离，仿真效果良好。(Wireless sensor network routing algorithm, using the shortest path first jump of the scope of the search node distance, and then search for the two jump distance, simulation results were very good.)

A fast customizable function for locating and measuring the peaks in noisy time-series signals.(A fast customizable function for locating and measuring the peaks in noisy time-series si gnals.)

说明：  机械振动，邓克莱法求解结构的模态（固有频率，振型）(mechanical vibration,dengkelai)

说明：  研究大气边界层的朋友可以看看。。伯翰平均值和脉动量(Study the friend can see atmospheric boundary layer. "John average and pulse)

包含两个画频谱图的matlab程序及代码注释 点出了画频谱时应注意点(constain two matlab cord about how to plot spactuam and what we should attent when we do this)