Modulated optical signal detection based on cross-correlation algorithm

2021 ◽  
Author(s):  
Ke Zeng ◽  
Junfeng Han ◽  
Haitao Wang ◽  
Chen Wang ◽  
Xiaoping Xie
Keyword(s):  
Signal Detection ◽  
Cross Correlation ◽  
Optical Signal ◽  
Correlation Algorithm

Brand new method for magneto-optical signal detection with ultraresolution

1995 ◽  
Author(s):  
Hideyoshi Horimai ◽  
Katsuhiro Seo ◽  
Kiyoshi Toyota ◽  
Kimihiro Saito
Keyword(s):  
Signal Detection ◽  
Optical Signal ◽  
New Method

Application of cross-correlation algorithm in moving target range-gated three-dimensional laser active imaging

2016 ◽  
Vol 45 (6) ◽  
pp. 0617003
Author(s):  
范有臣 Fan Youchen ◽  
赵洪利 Zhao Hongli ◽  
孙华燕 Sun Huayan ◽  
郭惠超 Guo Huichao ◽  
赵延仲 Zhao Yanzhong
Keyword(s):  
Cross Correlation ◽  
Three Dimensional ◽  
Target Range ◽  
Moving Target ◽  
Correlation Algorithm ◽  
Active Imaging

scholarly journals A New Cross-Correlation Algorithm Based on Distance for Improving Localization Accuracy of Partial Discharge in Cables Lines

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4549 ◽  
Author(s):  
Xianjie Rao ◽  
Kai Zhou ◽  
Yuan Li ◽  
Guangya Zhu ◽  
Pengfei Meng
Keyword(s):  
Cross Correlation ◽  
Partial Discharge ◽  
Effective Means ◽  
Sampling Rate ◽  
Propagation Distance ◽  
Test System ◽  
Computer Simulation Model ◽  
Localization Accuracy ◽  
Correlation Algorithm ◽  
Cable Lines

Locating the partial discharge (PD) source is one of the most effective means to locate local defects in power cable lines. The sampling rate and the frequency-dependent characteristic of phase velocity have an obvious influence on localization accuracy based on the times of arrival (TOA) evaluation algorithm. In this paper, we present a cross-correlation algorithm based on propagation distance to locate the PD source in cable lines. First, we introduce the basic principle of the cross-correlation function of propagation distance. Then we verify the proposed method through a computer simulation model and investigate the influences of propagation distance, sampling rate, and noise on localization accuracy. Finally, we perform PD location experiments on two 250 m 10 kV XLPE power cables using the oscillation wave test system. The simulation and experiment results indicate that compared with traditional TOA evaluation methods, the proposed method has superior locating precision.

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