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CAS IR Grid
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长春光学精密机械与... [14]
金属研究所 [3]
沈阳自动化研究所 [2]
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Self-Noise Spectrum Analysis and Joint Noise Filtering for the Sea-Wing Underwater Glider Based on Experimental Data
期刊论文
OAI收割
IEEE Access, 2020, 卷号: 8, 页码: 42960-42970
作者:
Sun J(孙洁)
;
Wang J(王瑾)
;
Shi, Yang
;
Hu F(胡峰)
;
Wang X(王旭)
|
收藏
|
浏览/下载:62/0
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提交时间:2020/04/11
Underwater glider
noise filtering
self-noise characteristics
hydrodynamic flow noise
mechanical noise
experimental data processing
Interpretation of comprehensive two-dimensional gas chromatography data using advanced chemometrics
期刊论文
OAI收割
trac-trends in analytical chemistry, 2014, 卷号: 53, 页码: 150-166
作者:
Zeng, Zhongda
;
Li, Jia
;
Hugel, Helmut M.
;
Xu, Guowang
;
Marriott, Philip J.
收藏
|
浏览/下载:32/0
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提交时间:2015/11/17
Chemometrics
Comprehensive two-dimensional gas chromatography (GC x GC)
Data characteristics
Data processing
Deconvolution
Mass spectrometry
Multivariate curve resolution (MCR)
Multivariate data analysis
Orthogonality
Signal processing
Hot deformation map and its application of GH4706 alloy
期刊论文
OAI收割
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, 2014, 卷号: 21, 期号: 5, 页码: 462-468
作者:
Huang Shuo
;
Wang Lei
;
Lian Xintong
;
Zhao Guangpu
;
Li Fangfei
|
收藏
|
浏览/下载:14/0
|
提交时间:2021/02/02
DYNAMIC RECRYSTALLIZATION
MICROSTRUCTURAL CONTROL
WORKING CHARACTERISTICS
PROCESSING MAPS
SUPERALLOY
BEHAVIOR
superalloys
nickel alloys
deformation
microstructure
dynamic recrystallization
Hot deformation map and its application of GH4706 alloy
期刊论文
OAI收割
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, 2014, 卷号: 21, 期号: 5, 页码: 462-468
作者:
Huang Shuo
;
Wang Lei
;
Lian Xintong
;
Zhao Guangpu
;
Li Fangfei
|
收藏
|
浏览/下载:19/0
|
提交时间:2021/02/02
DYNAMIC RECRYSTALLIZATION
MICROSTRUCTURAL CONTROL
WORKING CHARACTERISTICS
PROCESSING MAPS
SUPERALLOY
BEHAVIOR
superalloys
nickel alloys
deformation
microstructure
dynamic recrystallization
Research on infrared dim-point target detection and tracking under sea-sky-line complex background (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:
Dong Y.-X.
;
Zhang H.-B.
;
Li Y.
;
Li Y.
;
Li Y.
收藏
|
浏览/下载:112/0
|
提交时间:2013/03/25
Target detection and tracking technology in infrared image is an important part of modern military defense system. Infrared dim-point targets detection and recognition under complex background is a difficulty and important strategic value and challenging research topic. The main objects that carrier-borne infrared vigilance system detected are sea-skimming aircrafts and missiles. Due to the characteristics of wide field of view of vigilance system
the target is usually under the sea clutter. Detection and recognition of the target will be taken great difficulties.There are some traditional point target detection algorithms
such as adaptive background prediction detecting method. When background has dispersion-decreasing structure
the traditional target detection algorithms would be more useful. But when the background has large gray gradient
such as sea-sky-line
sea waves etc.The bigger false-alarm rate will be taken in these local area.It could not obtain satisfactory results. Because dim-point target itself does not have obvious geometry or texture feature
in our opinion
from the perspective of mathematics
the detection of dim-point targets in image is about singular function analysis.And from the perspective image processing analysis
the judgment of isolated singularity in the image is key problem. The foregoing points for dim-point targets detection
its essence is a separation of target and background of different singularity characteristics.The image from infrared sensor usually accompanied by different kinds of noise. These external noises could be caused by the complicated background or from the sensor itself. The noise might affect target detection and tracking. Therefore
the purpose of the image preprocessing is to reduce the effects from noise
also to raise the SNR of image
and to increase the contrast of target and background. According to the low sea-skimming infrared flying small target characteristics
the median filter is used to eliminate noise
improve signal-to-noise ratio
then the multi-point multi-storey vertical Sobel algorithm will be used to detect the sea-sky-line
so that we can segment sea and sky in the image. Finally using centroid tracking method to capture and trace target. This method has been successfully used to trace target under the sea-sky complex background. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Noise processing technology of a TDICCD sensor (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
作者:
Zhang L.-P.
收藏
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浏览/下载:19/0
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提交时间:2013/03/25
In the application of TDI-CCD
the other is all kinds of interference noise produced in the working process of a TDI-CCD
for reset noise
because of its serious noise interference
such as reset noise and 1 / f noise
correlated double sampling is employed. The experimental results show that after noise processing
the imaging quality is reduced
etc. According to the features of noise
the output S/N has been raised to about 50 dB. 2010 IEEE.
so that it is necessary to study the noise characteristics of TDI-CCD. There are two categories of noise
this paper has studied the corresponding noise-processing technology. For dark current noise
one is the inherent noise
refrigeration is taken
including shot noise
dark current noise
fixed pattern noise and transfer noise etc.
Target characteristic extraction algorithm based on block structure variables (EI CONFERENCE)
会议论文
OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
作者:
Zhou Y.
;
Yang H.
;
Yan F.
;
Yan F.
收藏
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浏览/下载:28/0
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提交时间:2013/03/25
In image processing system
the target recognition is very crucial. An optimized algorithm based on the definition of block is presented. In this algorithm
two structure variables are self-defined to calculate the areas and centroids of targets. The labeling conflicts are resolved by tracking and correcting
which means that if there is a conflict
trace the neighbored blocks and correct the labels of them. Finally
the characteristics of blocks
which have the same label
are accumulated. This method has outstanding advantages in saving memory
compared with Pixel labeling algorithm and Run-length code algorithm. The new algorithm is simple and the results of target characteristics are easy to be analyzed and handled in the following processes. 2010 IEEE.
The research on the automatic measurement of frequency characteristics of opto-electronic platform (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
作者:
Liu H.
;
Liu H.
;
Chen J.
;
Liu H.
收藏
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浏览/下载:28/0
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提交时间:2013/03/25
A new frequency characteristic test method is proposed based on the digitization characteristics of optoelectronic platform servo system. First a digital processing controller is used to automatically test the entire process and tested data are uploaded to a PC through CAN-bus
and then the tested data are transferred into accurate transfer function with the Levy method. Here we discuss the testing steps
the data processing
the extraction
the Bode diagram plotting and the model identification in detail. The corresponding experiments are carried out
and the results show that the method is simple with the features of high efficiency
high precision and engineering feasibility. 2010 IEEE.
Constitutive flow behavior and hot workability of powder metallurgy processed 20 vol.%SiC(P)/2024Al composite
期刊论文
OAI收割
Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, 2010, 卷号: 527, 期号: 29-30, 页码: 7865-7872
J. C. Shao
;
B. L. Xiao
;
Q. Z. Wang
;
Z. Y. Ma
;
Y. Liu
;
K. Yang
收藏
|
浏览/下载:22/0
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提交时间:2012/04/13
Metal matrix composites
Constitutive equations
Processing maps
Aluminum alloys
Powder metallurgy
6061+20-percent al2o3 composite
matrix composites
working
characteristics
deformation-behavior
al composite
maps
aluminum
20-percent
particles
extrusion
Improvement of urban land use and land cover classification approach in arid areas
会议论文
OAI收割
Proceedings of SPIE - The International Society for Optical Engineering, Image and Signal Processing for Remote Sensing XVI, Toulouse, France, 2010
Qian
;
Jing1
;
2
;
Zhou
;
Qiming1
;
Chen
;
Xi2
收藏
|
浏览/下载:36/0
|
提交时间:2011/08/23
Arid regions - Image analysis - Image classification - Land use - Landforms - Maximum likelihood - Photography - Pixels - Remote sensing - Signal processing - Aerial Photographs - Arid area - Bare soils - Beijing-1 - Built-up areas - Classification approach - Classification results - Construction materials - Data sets - Discrete elements - Extraction accuracy - Field investigation - High resolution image - Land-cover types - Landsat ETM - Maximum likelihood classifications - Mixed pixel - Multi-sensor data - Object oriented - object-oriented classification method - Object-oriented processing - Spectral characteristics - Stony deserts - Urban areas - Urban change detection - Urban environments - Urban land use
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