Research on ELoran Demodulation Algorithm Based on Multiclass Support Vector Machine

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Publicado no:Remote Sensing vol. 16, no. 17 (2024), p. 3349
Autor principal: Liu, Shiyao
Outros Autores: Baorong Yan, Guo, Wei, Yu, Hua, Zhang, Shougang, Lu, Jun, Xu, Lu, Yang, Dong
Publicado em:
MDPI AG
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035 |a 3104044637 
045 2 |b d20240101  |b d20241231 
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100 1 |a Liu, Shiyao  |u National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China; Key Laboratory of Precise Positioning and Timing Technology, Chinese Academy of Sciences, Xi’an 710600, China 
245 1 |a Research on ELoran Demodulation Algorithm Based on Multiclass Support Vector Machine 
260 |b MDPI AG  |c 2024 
513 |a Journal Article 
520 3 |a Demodulation and decoding are pivotal for the eLoran system’s timing and information transmission capabilities. This paper proposes a novel demodulation algorithm leveraging a multiclass support vector machine (MSVM) for pulse position modulation (PPM) of eLoran signals. Firstly, the existing demodulation method based on envelope phase detection (EPD) technology is reviewed, highlighting its limitations. Secondly, a detailed exposition of the MSVM algorithm is presented, demonstrating its theoretical foundations and comparative advantages over the traditional method and several other methods proposed in this study. Subsequently, through comprehensive experiments, the algorithm parameters are optimized, and the parallel comparison of different demodulation methods is carried out in various complex environments. The test results show that the MSVM algorithm is significantly superior to traditional methods and other kinds of machine learning algorithms in demodulation accuracy and stability, particularly in high-noise and -interference scenarios. This innovative algorithm not only broadens the design approach for eLoran receivers but also fully meets the high-precision timing service requirements of the eLoran system. 
653 |a Receivers & amplifiers 
653 |a Machine learning 
653 |a Back up systems 
653 |a Accuracy 
653 |a Decoding 
653 |a Error correction & detection 
653 |a Support vector machines 
653 |a Pulse position modulation 
653 |a Signal processing 
653 |a Algorithms 
653 |a Codes 
653 |a Information processing 
653 |a Demodulation 
700 1 |a Baorong Yan  |u National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China; Key Laboratory of Precise Positioning and Timing Technology, Chinese Academy of Sciences, Xi’an 710600, China 
700 1 |a Guo, Wei  |u National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China; Key Laboratory of Precise Positioning and Timing Technology, Chinese Academy of Sciences, Xi’an 710600, China 
700 1 |a Yu, Hua  |u National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China; Key Laboratory of Precise Positioning and Timing Technology, Chinese Academy of Sciences, Xi’an 710600, China 
700 1 |a Zhang, Shougang  |u National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China; University of Chinese Academy of Sciences, Beijing 100039, China; Key Laboratory of Time and Frequency Standards, Chinese Academy of Sciences, Xi’an 710600, China 
700 1 |a Lu, Jun  |u School of Software Engineering, Chengdu University of Information Technology, Chengdu 610225, China 
700 1 |a Xu, Lu  |u School of Software Engineering, Chengdu University of Information Technology, Chengdu 610225, China 
700 1 |a Yang, Dong  |u Sichuan Meteorological Service Centre, Chengdu 610072, China 
773 0 |t Remote Sensing  |g vol. 16, no. 17 (2024), p. 3349 
786 0 |d ProQuest  |t Advanced Technologies & Aerospace Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3104044637/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full Text + Graphics  |u https://www.proquest.com/docview/3104044637/fulltextwithgraphics/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3104044637/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch