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MATLAB图形句柄 1 图形对象及其句柄 2 图形对象属性 3 图形对象的创建 (MATLAB graphics handle a graphic object and the handle 2 graphics object property 3 to create graphic objects)

在分析结构损伤后，给结构添加噪声，再对结构不同损伤情况下的分析(After the analysis of structural damage to the structure adding noise, and then the structure is different in case of damage)

dbscan聚类代码及说明，包含多个文件的代码。(DBSCAN clustering code and description)

说明：  直接序列扩频程序直接序列扩频程序 直接序列扩频程序直接序列扩频程序(dsss dsss dsss dsss implementdsss dsss dsss dsss implement)

matlab simulation of a direct sequence spread specrum

对心率变异性（HRV）曲线进行时域分析时候，主要参数SDNN，SDANN，SDNN_INEDX等的matlab计算程序。(On heart rate variability (HRV) curve when the time-domain analysis, the main parameters SDNN, SDANN, SDNN_INEDX etc. matlab calculation program.)

交错网格声波模拟，可展示波场快照，反映波传播的过程。(Staggered grid acoustic simulations, can show a snapshot of the wave field, reflecting the wave propagation process.)

属性分类的粒子群算法Particle swarm optimization (pso) algorithm to the classification of the attribute(Particle swarm optimization (pso) algorithm to the classification of the attribute)

It is the algorithm for energy detector in WRAN.

说明：  利用BP神经网络设计指纹识别算法，给神经网络提供每一模式类中的一些样本作为训练样本。BP网络经过学习，不仅能够识别已训练过的样本，而且能够识别未出现过的样本。利用神经网络的泛化能力，提高指纹识别算法的识别率，图像增强、提取指纹特征(BP neural network is the first mock exam to design fingerprint recognition algorithm, and it provides samples for each neural network as training samples. After learning, BP network can not only recognize the trained samples, but also recognize the samples that have not appeared. The generalization ability of neural network is used to improve the recognition rate of fingerprint recognition algorithm, image enhancement and fingerprint feature extraction)