Results 81 to 90 of about 854,084 (200)

Development of portable orthogonal lock-in amplifier based on FPGA

Dianzi Jishu Yingyong, 2018
A portable orthogonal phase-locked amplifier for weak signal detection has been developed based on FPGA. First,the signal processing module receives the signal,does variable gain amplification on the signal and puts it through the power frequency noise ...
Xie Guihui, Zheng Xuchu, Zhao Tianming, Liu Zixu, Zhao Juan   +4 more
doaj   +1 more source

Multiband Fusion GPS Weak Signal Tracking and Acquisition Based on Opportunistic Ant Clustering [PDF]

Jisuanji gongcheng, 2018
Ant cluster network architecture of multi-space-time,high-dimensional stochastic process is built based on signal detection and tracking metadata fants dustering algorithm,so that any ant individuals according to the random access signal opportunity to ...
ZHANG Junchao,ZHAO Rongxiang,HUO Ping,FENG Jing
doaj  

Application of Fractional-Order Multi-Wing Chaotic System to Weak Signal Detection

Fractal and Fractional
This work investigates a fractional-order multi-wing chaotic system for detecting weak signals. The influence of the order of fractional calculus on chaotic systems’ dynamical behavior is examined using phase diagrams, bifurcation diagrams, and SE ...
Hongcun Mao, Yuling Feng, Xiaoqian Wang, Chao Gao, Zhihai Yao   +4 more
doaj   +1 more source

Chaotic Fiber Laser-Based Distributed Fiber Sensing for Weak Vibration Detection Using Machine Learning

Photonics
To address the challenge of weak vibration signal detection, we propose a chaotic fiber laser-based distributed sensing system integrated with machine learning-assisted signal extraction.
Weicheng Zheng, Yiwei Chen, Haoran Pan, Xiangkun Ma, Jiahua Xu, Junmin Liu, Chunxiang Zhang   +6 more
doaj   +1 more source

Radar Intelligent Processing Technology and Application for Weak Target

Leida xuebao
Weak target signal processing is the cornerstone and prerequisite for radar to achieve excellent detection performance. In complex practical applications, due to strong clutter interference, weak target signals, unclear image features, and difficult ...
Xiaolong CHEN, Xiaoyang HE, Zhenhua DENG, Jian GUAN, Xiaolin DU, Wei XUE, Ningyuan SU, Jinhao WANG   +7 more
doaj   +1 more source

Design and Analysis of Micro Signal Detection Circuit for Magnetic Field Detection Utilizing Coil Sensors

Applied Sciences
Eddy current inspection has been extensively employed in non-destructive testing of various conductive materials. The coil probe, as a mainstream sensor in the eddy current detection system, inevitably encounters interference from external signals while ...
Qifan Xu, Sichang Zhang, Siyu Li, Zhe Xu, Shouqi Cao, Meiling Wang   +5 more
doaj   +1 more source

Detection and interpretation of weak signals

, 2016
Managing safety at a nuclear power plant is about a complex system with demanding technology under time pressure where the cost of failure is exceptionally high. Swedish nuclear power plants have over the last few years introduced Pre-job Briefing and other so called Human Performance Tools to advert errors and strengthen control. By using the Systemic
openaire   +1 more source

A Weak Signal Detection Method Based on HFER Features in Sea Clutter Background

Journal of Marine Science and Engineering
To address the issue of aliasing between weak signals and sea clutter, we have developed a weak signal detection method leveraging High-Frequency Energy Ratio (HFER) features.
Yan Yan, Yongxian Song, Hongyan Xing, Zhengdong Qi   +3 more
doaj   +1 more source

Weak signal detection: A discrete window of opportunity for achieving 'Vision 90:90:90'? [PDF]

SAHARA J, 2016
Burman CJ, Aphane M, Delobelle P.
europepmc   +1 more source

Generalized Parameter-Adjusted Stochastic Resonance of Duffing Oscillator and Its Application to Weak-Signal Detection. [PDF]

Sensors (Basel), 2015
Lai ZH, Leng YG.
europepmc   +1 more source