Lpc-and-pesss

分析粒子群算法在求解组合优化问题中的运行原理并与遗传算法和 改进的粒子群算法仿真比较． 结果表明 混合优化算法在收敛速度和精度上均有明显的提高(Ｔｈｅ 　 ｍｅｃｈａｎｉｓｍ 　 ｏｆ 　 ｐ ａｒｔｉｃｌｅ 　 ｓｗａｒｍ 　 ｏ ｐ ｔｉｍｉｚａｔｉｏｎ ＰＳＯ ｉｎ 　 ｓｏｌｖｉｎ ｇ 　 ｃｏｍｂｉｎａｔｏｒｉａｌ 　 ｏ ｐ ｔｉｍｉｚａｔｉｏｎ ｐ ｒｏｂｌｅｍｓ 　 ｗａｓ 　 ａｎａｌ ｙ ｚｅｄ．Ｓｉｍｕｌａｔｉｏｎｓ 　 ｃｏｍ ｐ ａｒｉｓｏｎ ｗｉｔｈ 　 ＧＡ 　 ａｎｄ 　 ｉｍ ｐ ｒｏｖｅｄ 　 ＰＳＯ 　 ｓｈｏｗｓ 　 ｔｈａｔ 　 ｔｈｅ 　 ｈ ｙ ｂｒｉｄ 　 ｏ ｐ ｔｉｍｉｚａｔｉｏｎ 　 ａｌ ｇ ｏｒｉｔｈｍ 　 ｈａｓ 　 ｏｂｖｉｏｕｓ 　 ｉｍ ｐ ｒｏｖｅｍｅｎｔｓ 　 ｉｎ ｃｏｎｖｅｒ ｇ ｅｎｃｅ 　 ｓ ｐ ｅｅｄ 　 ａｎｄ 　 ａｃｃｕｒａｃ ｙ)

Partition index is a measure ofvalidity similar to partition coeGcient, based on using Pj = ci=1 (uij)m as a measure ofhow well the jth data point has been classi- 2ed. The closer a pixel is to a codebook entry, the closer Pj is to one. Ifa pixel becomes an outlier to all cluster centers, the value of Pj approaches 1=cm − 1, which is the minimum value it can have.

根据邻接矩阵，计算复杂网络中节点的介数。(According to adjacency matrix, Calculate the Betweenness of network nodes)

说明：  计算行星齿轮的固有频率，来分析其共振现象，刚度矩阵(Calculate the natural frequency of planetary gear to analyze its resonance phenomenon and stiffness matrix)

Simple show in 3D model of Single-slit diffraction.

kmeans image segmentation Input: ima: grey color image k: Number of classes Output: mu: vector of class means mask: clasification image mask

clean算法的matlab实现代码，采用TH-PPm调制(Clean algorithm matlab implementation code, using TH-PPm modulation)

程序采用显示方案实现“平均曲率运动(MCM)”的模型，解法为显示解(Program implementation by show "mean curvature motion (MCM)" model, solution for display solutions )

主要用于辐照图变化下，对最大功率的寻求，代码基本没问题，希望有所帮助(It is mainly used to seek the maximum power under the change of irradiation pattern.)

说明：  SAR点目标成像，RD算法和CS算法都有，含报告(SAR point target imaging, RD algorithm and CS algorithm, including report)