Specifications

Classification code: 408.2 Structural Members and Shapes - 421 Strength of Building
Materials; Mechanical Properties - 672 Naval Vessels - 811.1 Pulp and Paper - 931.3
Atomic and Molecular Physics - 951 Materials Science
DOI: 10.3139/146.110896
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
2.
Accession number: 20133016534351
Title: Design & development of multi-mode integrated timing device
Authors: Ke, Xizheng1 ; Liu, Juanhua1 ; Li, Jianxun1, 2/柯熙政;;李建勋
Author affiliation:
1 Faculty of Automation and Information Engineering, Xi'an University of Technology, Xi'an
710048, China
2 Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an 710119, China
Corresponding author: Ke, X. ([e-mail])
Source title: Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument
Abbreviated source title: Yi Qi Yi Biao Xue Bao
Volume: 34
Issue: 6
Issue date: June 2013
Publication year: 2013
Pages: 1209-1217
Language: Chinese
ISSN: 02543087
CODEN: YYXUDY
Document type: Journal article (JA)
Publisher: Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract: A multi-mode combined timing device was designed based on multi-scale data
fusion theory, which can output the time frequency signal with higher precision by combining the
GPS, GLONAS and Beidou timing signals. Firstly, the GPS, GLONAS and Beidou timing signals are
decomposed respectively in different wavelet scales. Secondly, the wavelet coefficients of these
signals in the same scale are synthesized with wavelet weighting method scale by scale. Thirdly,
inverse wavelet transform is used to reconstruct the signal that represents the timescale. The
new timescale is in step with UTC theoretically. Test result shows that after disciplining the local
oscillators, the frequency stability of the device reaches to 10-12, which is higher than that of the
single-mode device by one order of magnitude.
Number of references: 15
Main heading: Signal processing
Controlled terms: Data fusion - Radio navigation - Timing devices - Wavelet
transforms
Uncontrolled terms: Combined timing - Different wavelets - Inverse wavelet
transforms - Local oscillators - Multi-scale datum - Time frequency signals - Wavelet
coefficients - Weighting methods
Classification code: 716.1 Information Theory and Signal Processing - 716.3 Radio Systems