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兰州理工大学 [1]
长春光学精密机械与物... [1]
福州大学 [1]
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会议论文 [1]
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Preparation and microstructure of AlCoCrFeNi high-entropy alloy complex curve coatings
期刊论文
MATERIALS SCIENCE AND TECHNOLOGY, 2017, 卷号: 33, 期号: 5, 页码: 559-566
作者:
Wang, Yu-Sen
;
Wang, Xiao-Rong
;
Wang, Zhao-Qin
;
Lin, Tie-Song
;
He, Peng
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浏览/下载:24/0
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提交时间:2019/11/15
High-energy micro-arc spark deposition
Electrospark deposition
Equi-arc length deposition
Fixed step plus golden section
High-entropy alloy coatings
A fast algorithm for AR parameter estimation using a novel noise-constrained least-squares method
期刊论文
NEURAL NETWORKS, 2010, 卷号: 23, 页码: 396-405
作者:
Xia, Youshen
;
Kamel, Mohamed S.
;
Leung, Henry
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浏览/下载:6/0
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提交时间:2019/11/26
Autoregressive parameter estimation
Robust estimate
Noise-constrained least-squares method
Fixed step length
Fast learning algorithm
Mean-square error
Space camera imaging gain in-orbit adjusting strategy (EI CONFERENCE)
会议论文
2009 2nd International Conference on Intelligent Computing Technology and Automation, ICICTA 2009, October 10, 2009 - October 11, 2009, Changsha, Hunan, China
He X.
;
Jin G.
;
Wang J.
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浏览/下载:12/0
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提交时间:2013/03/25
A Multi-Step Gain Adjusting Strategy (MSGAS) of space camera was proposed
which was used to get higher SNR (Signal-Noise Rate) image. When the space camera working in poor light condition
the CCD signal was so weak that it's difficult to get a clear image
to reduce the quantization noise and improve the SNR
we must amplify the CCD signal first and then quantize. The MSGAS was achieved by adjusting the gain of the CCD (Charge Couple Device) signal processor step by step
the upper limit and lower limit were set
if the MDN (Mean Digital Number) of a fixed length image data was not between the lower and upper limit
the gain was adjusted step by step. In the experiment
the upper limit
lower limit and the step were set
and the result of the experiment showed that MSGAS was robust and SNR was improved from 28 to 39. 2009 IEEE.
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