vsya_model

三次样条曲线拟和，能够很好的处理离散点的拟和问题，值得收藏(Cubic spline curve fitting and)

这个Matlab仿真程序实现LDPC低密度奇偶校验码（Low Density Parity Check）算法。适用于AWGN信道下(The Matlab simulation program to achieve low density parity check codes LDPC (Low Density Parity Check) algorithm. AWGN channel for)

Matlab 利用S函数编写系统模型，分为离散模型和非线性模型。(Matlab to using S functions to the preparation of system model, is divided into discrete model and nonlinear models are.)

说明：  MATLAB通用神经网络源代码 MATLAB通用神经网络源代码(Generic neural network MATLAB source code)

说明：  ：DBSCAN是一个基于密度的聚类算法。该算法将具有足够高密度的区域划分为簇，并可以在带有“噪声”的空间数 据库中发现任意形状的聚类。但DtLqCAN算法没有考虑非空间属性，且DBSCAN算法需扫描空间数据库中每个点的e一 邻域来寻找聚类，这使得DBSCAN算法的应用受到了一定的局限。文中提出了一种基于DBSCAN的算法，可以处理非空 间属性，同时又可以加快聚类的速度。(: DBSCAN is a density-based clustering algorithm. The algorithm has a sufficiently high density area is divided into clusters, and to be with the &quot noise&quot found in the spatial database clusters of arbitrary shape. But DtLqCAN algorithm did not consider non-spatial attributes, and spatial database DBSCAN algorithm to be scanned for each point e in the neighborhood to find a cluster, DBSCAN algorithm which makes the application subject to certain limitations. In this paper, an algorithm based on DBSCAN can handle the non-spatial attributes, can also speed up the clustering speed.)

文件整理了冈萨雷斯版Matlab例程的源代码，有用到的同学可以下载。(Filing the gonzalez version of Matlab routines source code, useful to the students can download.)

地震勘探 谱比法Q值估计（谱比法）谱比法Q值估计是地震勘探的常用方法(Seismic spectral ratio Q value estimation (spectral ratio))

关于非线性离散系统辨识，这个有中文注释，看得明白，最小二乘回归分析算法。( Nonlinear discrete system identification, The Chinese have a comment, understand it, Least-squares regression analysis algorithm.)

说明：  一种永磁同步电机simulink模型，仅供学习参考(A Simulink model of permanent magnet synchronous motor)

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