Abstract
Based on the polarization difference between the multipath and the line-of-sight (LOS) signal, a method for multipath detection using a single antenna is proposed. The antenna has two channels to receive two orthogonal linear polarized components of the multipath and LOS signal, respectively. A hypothetical model of the antenna is employed such that the antenna patterns of the channels are assumed identical regarding amplitude and phase and are independent of azimuth. The antenna gain in the direction below the local horizon is assumed to be larger than in the direction toward LOS signals. Parallel cross-cancellation is used to remove the LOS signal from the received signals based on the magnitude and phase difference between the two orthogonal components. Then the residual signals are processed by a conventional digital processor of global navigation satellite system. The multipath can be detected by parallel cross-cancellation in the receiver in real time. The proposed method makes use of the polarization and spatial information of the multipath and LOS signal, and can detect short-delay multipath.
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References
Braasch MS (1994) Isolation of GPS multipath and receiver tracking errors. Navigation 41(4):415–434
Brenneman M, Morton J, Yang C, Graas FV (2007) Mitigation of GPS multipath using polarization and spatial diversities. In: Proceedings of ION GNSS 2007, Institute of Navigation, Fort Worth, TE, 25–28 Sept, pp 1221–1229
Brenneman MT, Morton YT, Zhou Q (2010) GPS multipath detection with ANOVA for adaptive arrays. IEEE Trans Aerosp Electron Syst 46(3):1171–1184
Closas P, Fernández-Prades C (2011) A statistical multipath detector for antenna array based GNSS receivers. IEEE Trans Wirel Commun 10(3):916–929
Comp CJ, Axelrad P (1998) Adaptive SNR-based carrier phase multipath mitigation technique. IEEE Trans Aerosp Electron Syst 34(1):264–276
Daneshmand S, Broumandan A (2013) GNSS multipath mitigation with a moving antenna array. IEEE Trans Aerosp Electron Syst 49(1):693–698
Dierendonck AJV, Fenton P, Ford T (1992) Theory and performance of narrow correlator spacing in a GPS receiver. Navigation 39(3):265–283
Elliott DK, Christopher JH (2006) Understanding GPS: principles and application, 2nd edn. Artech House Inc., Boston
IS-GPS-200H (2013) Global positioning system wing (GPSW) systems engineering and integrations. http://www.gps.gov/technical/icwg/
Jiang ZY, Groves PD (2014) NLOS GPS signal detection using a dual-polarisation antenna. GPS Solut 18(1):15–26
LaMance J, Small D (2011) Locata correlator-based beam forming antenna technology for precise indoor positioning and attitude. In: Proceedings of ION GNSS 2011, Institute of Navigation, Portland, OR, 19–23 Sept, pp 3436–2445
Leick A, Rapoport L, Tatarnikov D (2015) GPS satellite surveying, 4th edn. Wiley, Hoboken
Li M, Zhao W, Yuan L, Liu QL (2015) A GNSS multipath detecting method based on antenna arrays. In: Proceedings of the 6th China satellite navigation conference, Xi An, 21–23 May, pp 319–330
Manandhar D, Shibasaki R (2004) GPS signal analysis using LHCP/RHCP antenna and software GPS receiver. In: Proceedings of ION GNSS 2004, Institute of Navigation, Long Beach, CA, 21–24 Sept, pp 2489–2498
McGraw G, Braash M (2009) GNSS multipath mitigation using gated and high resolution correlator concepts. In: Proceedings of ION NTM 1999, Institute of Navigation, San Diego, CA, 25–27 Jan, pp 333–342
Mir HS, Sahr JD (2007) Passive direction finding using airborne vector sensors in the presence of manifold perturbations. IEEE Trans Signal Process 55(1):156–164
Monte LL, Elnour B, Erricolo D (2007) Design and realization of a distributed vector sensor for polarization diversity applications. In: Proceeding of 2007 waveform diversity & design, Pisa, Italy, pp 358–361
Nehorai A, Paldi E (1994) Vector-sensor array processing for electromagnetic source localization. IEEE Trans Signal Process 42(2):376–398
Rougerie S, Carrie G (2012) A new multipath mitigation method for GNSS receivers based on an antenna array. Int J Navig Observ 2012, Article ID 804732
Rougerie S, Carrie G, Ries L, Vincent F, Monnerat M (2011) Multipath mitigation methods based on antenna array. In: Proceedings of ION NTM 2011, Institute of Navigation, San Diego, CA, 24–26 Jan, pp 596–605
Seco-Granados G, Fernández-Rubio JA, Fernández-Prades C (2005) ML estimator and hybrid beamformer for multipath and interference mitigation in GNSS receivers. IEEE Trans Signal Process 53(3):1194–1208
Sharawi MS, Aloi DN (2006) Comparative analysis via simulation of two null-steering approaches for the multipath limiting antenna for LAAS. In: Proceedings of ION NTM 2006, Institute of Navigation, Monterey, CA, 18–20 Jan, pp 935–948
Sun L, Chen JP, Tan SS, Chai Z (2015) Research on multipath limiting antenna array with fixed phase center. GPS Solut 19(4):505–510
Tatarnikov DV, Stepanenko AP, Astakhov AV (2016) Moderately compact helix antennas with cutoff patterns for millimeter RTK positioning. GPS Solut 20:587–594
Wong KT, Lillshan L, Zoltowsli MD (2004) Root-MUSIC-based direction-finding and polarization estimation using diversely polarized possibly collocated antennas. IEEE Antennas Wirel Propag Lett 3(1):129–132
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The authors would like to thank anonymous reviewers for providing valuable comments which helped improving the paper.
Funding was provided by National Natural Science Foundation of China (Grant No. 61403413).
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Zhang, K., Li, B., Zhu, X. et al. Multipath detection based on single orthogonal dual linear polarized GNSS antenna. GPS Solut 21, 1203–1211 (2017). https://doi.org/10.1007/s10291-017-0603-z
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DOI: https://doi.org/10.1007/s10291-017-0603-z