| Citation: | WANG Xiaoyu, LI Deng'ao, ZHAO Juminet al. KBLMS channel compensation multipath mitigation algorithm based on BDS/GPS[J]. Journal of Beijing University of Aeronautics and Astronautics, 2021, 47(1): 169-176. doi: 10.13700/j.bh.1001-5965.2020.0008(in Chinese)
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In the Global Navigation Satellite System (GNSS), a channel compensation technique based on BDS/GPS Kalman Based Least Mean Square estimation (KBLMS) is proposed to address the problems that the single system cannot locate in the city canyon, the signal cannot be captured after locking, and the tracking performance is poor. Firstly, a dual system model is established. Secondly, the delay estimation module based on the minimum mean square error of Kalman estimation is designed to compensate the multipath distortion on the received signal. Finally, the Line-of-Sight (LOS) optimal estimation block is designed to generate a control error signal in the feedback loop for adaptively updating the filter coefficients. The performance of KBLMS channel compensation multipath mitigation algorithm is analyzed through measured data and experimental simulation. The results show that, compared with Least Mean Square (LMS) algorithm, the KBLMS channel compensation multipath mitigation technology can fast converge in the multipath channel, the code tracking error in ENU three dimensions reduces by 0.1 chip, carrier tracking error decreases by about 0.125 cm, the error due to multipath effect effectively reduces, and the final residual error decreases by 0.035 chip. This shows that the multipath algorithm can do more accurate estimation, which verifies the effectiveness of the algorithm.
| [1] |
李惟, 朱云龙, 王峰, 等.GNSS多径信号模型及测高方法[J].北京航空航天大学学报, 2018, 44(6):1239-1245. doi: 10.13700/j.bh.1001-5965.2017.0417
LI W, ZHU Y L, WANG F, et al.GNSS multipath signal model and altimetry method[J].Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(6):1239-1245(in Chinese). doi: 10.13700/j.bh.1001-5965.2017.0417
|
| [2] |
廖希, 薛睿, 赵旦峰.一种适用于双卫星系统窄带LMS信道的状态模型[J].西安电子科技大学学报, 2015, 42(1):161-167. doi: 10.3969/j.issn.1001-2400.2015.01.026
LIAO X, XUE R, ZHAO D F.State modeling of the narrowband LMS channel suitable for dual-satellite systems[J].Journal of Xidian University, 2015, 42(1):161-167(in Chinese). doi: 10.3969/j.issn.1001-2400.2015.01.026
|
| [3] |
MILLER S, ZHANG X, SPANIAS A.A new asymmetric correlation kernel for GNSS multipath mitigation[C]//2015 Sensor Signal Processing for Defence, 2015: 15490738.
|
| [4] |
JIA Q, WU R B, WANG W Y, et al.Multipath interference mitigation in GNSS via WRELAX[J].GPS Solutions, 2018, 21(2):487-498. doi: 10.1007/s10291-016-0538-9
|
| [5] |
CHEN X, DOVIS F, PINI M.An innovative multipath mitigation method using coupled amplitude delay locked loops in GNSS receivers[J].IEEE/ION Position, Location and Navigation Symposium.Piscataway:IEEE Press, 2010:1118-1126. http://ieeexplore.ieee.org/document/5507230/citations
|
| [6] |
RUI X, SUN Y B, ZHAO D F.CPM signals for satellite navigation in the S and C bands[J].Sensors, 2015, 15(6):13184-13200. doi: 10.3390/s150613184
|
| [7] |
ROST C, WANNINGER L.Carrier phase multipath mitigation based on GNSS signal quality measurements[J].Journal of Applied Geodesy, 2009, 3(2):81-87. http://www.degruyter.com/view/j/jag.2009.3.issue-2/jag.2009.009/jag.2009.009.xml?format=INT
|
| [8] |
CANNON M E, LACHAPELLE G, QIU W, et al.Performance analysis of a narrow correlator spacing receiver for precise static GPS positioning[C]//Position Location and Navigation Symposium.Piscataway: IEEE Press, 1994: 355-360.
|
| [9] |
DE BAKKER P F, VAN DER MAREL H, TIBERIUS C C J M.Geometry-free undifferenced, single and double differenced analysis of single frequency GPS, EGNOS and GIOVE-A/B measurements[J].GPS Solutions, 2009, 13(4):305-314. doi: 10.1007/s10291-009-0123-6
|
| [10] |
SÁNCHEZFERNÁNDEZ M, AGUILERAFORERO M, GARCÍ-AARMADA A.Performance analysis and parameter optimization of DLL and MEDLL in fading multipath environments for next generation navigation receivers[J].IEEE Transactions on Consumer Electronics, 2007, 53(4):1302-1308. doi: 10.1109/TCE.2007.4429216
|
| [11] |
TOWNSEND B, WIEBE J, JAKAB A.Results and analysis of using the MEDLL receiver as a multipath meter[C]//Proceedings of the National Technical Meeting of the Institute of Navigation, 2000: 73-79.
|
| [12] |
YUAN G, FENG L, TENG L.Analysis of multipath parameter estimation accuracy in MEDLL algorithm[C]//China Satellite Navigation Conference (CSNC) 2013 Proceeding, 2013: 597-606.
|
| [13] |
SAHMOUDI M, AMIN M.Fast iterative maximum-likelihood algorithm (FIMLA) for multipath mitigation in the next generation of GNSS receivers[J].IEEE Transactions on Wireless Communications, 2008, 7(11):4362-4374. doi: 10.1109/T-WC.2008.070700
|
| [14] |
STAUDER J.Estimation of point light source parameters for object-based coding[J].Signal Processing Image Communication, 1995, 7(4-6):355-379. doi: 10.1016/0923-5965(95)00008-7
|
| [15] |
SECO-GRANADO G, FERNANDEZ-RUBIO J A, FERNANDEZ-PRADES C.ML estimator and hybrid beamformer for multipath and interference mitigation in GNSS receivers[J].IEEE Transactions on Signal Processing, 2005, 53(3):1194-1208. doi: 10.1109/TSP.2004.842193
|
| [16] |
YAN G, WEI L, LI J, et al.A new iterative method for multipath mitigation[C]//China Satellite Navigation Conference (CSNC) 2015 Proceedings, 2015: 667-676.
|
| [17] |
SADRIEH S N, BROUMANDAN A, LACHAPELLE G.Doppler characterization of a mobile GNSS receiver in multipath fading channels[J].Journal of Navigation, 2012, 65(3):477. doi: 10.1017/S037346331200015X
|
| [18] |
SOKHANDAN N, BROUMANDAN A, CURRAN J T, et al.Accurate GNSS range estimation in multipath environments using stochastic-gradient-based adaptive filtering[J].Navigation, 2016, 63(1):39-52. doi: 10.1002/navi.126
|
| [19] |
CHEN X.Statistical multipath model comparative analysis of different GNSS orbits in static urban canyon environment[J].Advances in Space Research, 2018, 62(5):39-52. http://www.sciencedirect.com/science/article/pii/S027311771830471X
|
| [20] |
CHANG H K, SUN Y K, CHAN G P.An adaptive Kalman filtering approach to Fourier analysis for estimating various chirp-type GNSS interference frequencies:Chirp-type GNSS interference frequency tracking[J].Navigation, 2018, 65(1):3-13. doi: 10.1002/navi.217
|
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