Detection of ionospheric scintillation effects using LMD–DFA

被引：1
作者：
Raghavendra Vishnu Tadivaka
Bhanu Priyanka Paruchuri
Sridhar Miriyala
Padma Raju Koppireddi
Venkata Ratnam Devanaboyina
机构：
[1] KL University,Department of ECE
[2] Andhra Loyola Institute of Engineering and Technology,Department of ECE
[3] JNTUK,Department of ECE
来源：
Acta Geophysica | 2017年 / 65卷
关键词：
Detrended fluctuation analysis; Empirical mode decomposition; Global positioning system; Ionospheric scintillations; Local mean decomposition;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The performance and measurement accuracy of global navigation satellite system (GNSS) receivers is greatly affected by ionospheric scintillations. Rapid amplitude and phase variations in the received GPS signal, known as ionospheric scintillation, affects the tracking of signals by GNSS receivers. Hence, there is a need to investigate the monitoring of various activities of the ionosphere and to develop a novel approach for mitigation of ionospheric scintillation effects. A method based on Local Mean Decomposition (LMD)–Detrended Fluctuation Analysis (DFA) has been proposed. The GNSS data recorded at Koneru Lakshmaiah (K L) University, Guntur, India were considered for analysis. The carrier to noise ratio (C/N0) of GNSS satellite vehicles were decomposed into several product functions (PF) using LMD to extract the intrinsic features in the signal. Scintillation noise was removed by the DFA algorithm by selecting a suitable threshold. It was observed that the performance of the proposed LMD–DFA was better than that of empirical mode decomposition (EMD)–DFA.
引用
收藏
页码：777 / 784
页数：7
相关论文
共 60 条
  • [11] Woolfson AK(2007)Effects of geomagnetic storm on GPS ionospheric scintillations at Sanya GPS and ionospheric scintillations. Space Weather 5 9-299
  • [12] Golinska NE(2008)A fault diagnosis scheme for rolling bearing based on local mean decomposition and improved multiscale fuzzy entropy J Atmos Solar Terr Phys 70 1034-5
  • [13] Huang Z(2016)Robust detection of ionospheric scintillations using MF-DFA technique J Sound Vib 360 277-875
  • [14] Shen SR(2015)The complex local mean decomposition Earth Planets Space 67 1-4395
  • [15] Long EA(2011)Modified detrended fluctuation analysis based on empirical mode decomposition for the characterization of anti-persistent processes Neurocomputing 74 867-711
  • [16] Ihlen JW(2011)Automatic ionospheric scintillation detector for global navigation satellite system receivers Physica A 390 4388-454
  • [17] Kantelhardt E(2015)The local mean decomposition and its application to EEG perception data Radar Sonar Navigation IET 9 702-157
  • [18] Koscielny-Bunde JW(2005)Natural gas pipeline leak aperture identification and location based on local mean decomposition analysis J R Soc Interface 2 443-74
  • [19] Kantelhardt SA(2016)Multifractal behaviour of the ionospheric scintillation index time series over an Indian low latitude station Surat Measurement 79 147-270
  • [20] Zschiegner E(2014)A demodulation method based on improved local mean decomposition and its application in rub-impact fault diagnosis J Atmos Solar Terr Phys 109 66-1030
123456