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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
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wavlet
说明: matlab 实现小波图像去噪,自编程序非调用库函数(matlab implementation of wavelet image denoising, non-self-compiled programs call library functions)
- 2010-03-26 13:53:01下载
- 积分:1
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BWLabel
一种二值图像连通区域标记方法,能用于目标跟踪,我已经应用过,效果不错。(It is a new connected componet labeling algorithm for binary image,and can be used in object tracking. It is effective to be proved.)
- 2013-06-24 14:08:47下载
- 积分:1
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Matrix-positioning-procedure
基于MDS-MAP和矩阵重复优化的无线传感器网络定位程序(Matrix based on MDS-MAP and repeat the optimization of wireless sensor network positioning procedure)
- 2012-01-18 20:23:11下载
- 积分:1
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ViBe-master
前景检测 对动态背景进行多角度监测 动态背景检测(Foreground detection is used to monitor dynamic background from different angles)
- 2020-11-17 21:19:39下载
- 积分:1
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isar
isar成像处理,对测试数据进行处理的模板,可以显示二维像(ISAR imaging processing, the test data processing template, you can display the 2D image
)
- 2021-05-13 11:30:02下载
- 积分:1
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HistDemoA
数字图像处理实验——直方图的均衡化,打开图像并实现其均衡化(Digital image processing experiments- histogram equalization, open the image and realize its equalization)
- 2014-06-07 00:05:05下载
- 积分:1
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Morph
用Visual C++实现基于数学形态学的数字图像处理,包括二值图像的腐蚀,膨胀,开,闭,细化及中轴变换等运算.(Visual C++ using mathematical morphology-based digital image processing, including binary image erosion and dilation, opening, closing, thinning, and the central axis transform operations.)
- 2011-11-08 16:34:42下载
- 积分:1
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nirmaf
移动窗口算法平滑光谱矩阵,用于近红外等光谱数据的预处理(Moving window spectral matrix smoothing algorithm for near-infrared spectral data, such as the pretreatment)
- 2020-07-02 20:40:01下载
- 积分:1
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GABOR 小波代码
用于人脸识别边缘检测,实现5个尺度、8个方向的检测。(Edge detection for face recognition)
- 2017-09-06 08:01:34下载
- 积分:1