登录
首页 » PDF » 421

421

于 2014-04-23 发布 文件大小:375KB
0 226
下载积分: 1 下载次数: 14

代码说明:

  针对齿轮滚动轴承等的早期损伤类故障, 提出将小波包分解作为包络分析的前置处理手段以提取振动信号的故障信息特征 。 在简述小波包基本原理的基础上, 通过仿真信号, 对振动信号的具体处理过程进行分析, 并对可能遇到的问题, 提出处理办法, 然后应用于诊断实例 。 (Early damage fault for rolling bearings and other gear, the proposed wavelet packet decomposition as pre-processing means envelopment analysis to extract characteristic vibration signal fault information. On the basis of the basic principles outlined wavelet packet, through simulation signal processing for specific vibration signals are analyzed, and the problems that may be ncountered, proposed approach, and then applied to the diagnosis example.)

文件列表:

421.pdf,424078,2014-04-01

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • subcornerfinder
    亚像素角点定位函数代码,输入参数为角点像素级粗略坐标,输出精确的亚像素级角点坐标(corner subpixel positioning function code, the input parameters for the corner pixel rough coordinates, Output precision Subpixel corner coordinates)
    2007-06-07 07:58:39下载
    积分:1
  • matting
    图像抠图是将图像的目标物体从背景图像分割出来的技术,这段代码是用MATLAB实现的一段抠图的代码(Image matting is the image of the target object from the background image segmentation techniques, this code is implemented using MATLAB code section of matting)
    2010-11-01 17:50:48下载
    积分:1
  • snake
    道路提取,设置初始的点,输入图像,snake 模型(Road extraction, set the initial point, input image, snake model)
    2018-01-08 21:20:08下载
    积分:1
  • myexcise1
    我做的课题的响应信号,做了响应的小波包能量分析,希望对大家有帮助(I do issue a response signal, so the response of the wavelet packet energy analysis, we want to help)
    2011-09-18 15:22:52下载
    积分:1
  • cut_video
    把视频分割成一帧一帧并且保存为图像,实现视频录制(Put the video into a frame of a frame and saved as image segmentation)
    2013-06-14 16:55:58下载
    积分:1
  • MATLAB Hough霍夫曼直线检测
    MATLAB图像处理 Hough霍夫曼直线检测(MATLAB image processing Hough Hoffman line detection)
    2018-10-07 15:20:38下载
    积分:1
  • Application_study_of_wavelet_analysis_on_ultrasoni
    说明:  :在深海采矿环境中超声波传输介质里存在着大量气泡、扰动沉积物、机械噪声等背景噪声与混响,导致有用信号与高 噪声信号迭加在一起,严重影响了测距精度。采用小波分析方法将超声回波信号进行3层小波分解,适当设置门限阈值对小波 系数进行处理,然后对信号进行重构,有效地抑制了信号中噪声对测量精度的影响。研究结果表明:小波方法有很好的降低回 波信号中噪声的效果,其测距精度高于自适应滤波去噪后的测距精度。(There are much background and mixture noise in the course of ultrasonic wave transmission under deep sea mining environment,such as air bubbles and disturbed sediment and mechanical noise.Because of these factors, the useful signals and the high noise signals are combined together,which seriously affects the distance measurement precision.Ultrasonic echo signals are decomposed into three layer wavelets,and a threshold is set to process the wavelet coeficients.Then the signals are reconstructed.Accordingly the influence of environment noise on distance measurement precision is effectively restrained.Research resuhs indicate that wavelet transform method is very useful for noise reduction in signals.Its precision is higher than that of the adaptive filtering method.)
    2010-04-24 08:14:49下载
    积分:1
  • 1
    说明:  图像分割指把图像分成各具特性的区域并提取出感兴趣目标的技术和过程,它是由图像处理到图像分析的关键步骤。小麦的图像分割是使用各种图像分割算法对小麦图像进行处理和研究,提取出有用的图像信息以实现小麦粘连籽粒的分离,为进一步利用图像处理技术分析小麦品质提供依据。因此,对小麦图像分割方法的研究具有十分重要的意义。 本文首先研究了图像分割算法的分类以及常用图像分割算法的基本原理。然后针对小麦图像的特点,研究了在不同光照、背景和连接情况下使用的小麦图像分割方法,对各种分割算法进行了比较、结合和改进。重点研究了基于小波变换的分水岭算法和阈值分割算法在小麦图像分割中的应用,并借助MATLAB工具软件对选定图像进行处理,实现了对小麦粘连籽粒的分离。最后本文对图像分割技术进行了展望。 本论文的研究对于图像分割技术在小麦品质中的应用具有一定的参考价值。 (Image segmentation is a technology and process that divide image into different character area, which is interesting us. It is a key step from image processing to image analyzing. The wheat image segmentation is a way using many algorithms does some research and processing, and it also can realize the separation of wheat adhesion and realize the extraction of useful image information. So it can lay the foundation for using image processing technologies to analysis the quality of the wheat. there is a very important meaning for the research of the image segmentation method. This paper studies the class and the principle of segmentation algorithm in common use firstly, then, studies the wheat image segment algorithm with different illumination background. It contrasts kinds of algorithms, and improved them. This paper is based on wavelet transform, and combines with the watershed algorithm and the threshold segmentation method. Using the MATLAB software, does some process on the wheat i)
    2009-10-21 11:25:02下载
    积分:1
  • Wavelet-domain-Hidden-Markov-Models
    用小波域隐马尔科夫树模型进行图像降噪的matlab软件,rice大学编制(Software For Image Denoising Using Wavelet-Domain Hidden Markov Tree Models)
    2012-12-21 16:46:41下载
    积分:1
  • Vehicle_Detection_Recognition-master
    车型识别图像处理MATLAB代码可运行适合新手入门只用(car recognization adapted rookie study playplay)
    2018-01-09 22:14:19下载
    积分:1
  • 696518资源总数
  • 106161会员总数
  • 5今日下载