Inversion of Sea Surface Target of Spaceborne GNSS-R Based on PCA Algorithm
Abstract To suppress the sea clutter in delay Doppler map (DDM) and improve the accuracy of sea surface target inversion, we propose principal components analysis (PCA). In this paper, the Norwegian Snøhvit gas platform is used as the sea surface target, and the DDM data on November 13, 2016, are used for target inversion. Before using PCA to suppress sea clutter, the average error of inversion position is 17.65 km, the average error of inversion position after suppressing sea clutter is 11.42 km, and the position accuracy is improved by 35.30%.
Key words :
GNSS-R
delay Doppler map
PCA
Jacobi matrix
target inversion
Cite this article:
HU Yuan,GU Shisen,LIU Wei et al. Inversion of Sea Surface Target of Spaceborne GNSS-R Based on PCA Algorithm[J]. jgg, 2022, 42(10): 991-994.
HU Yuan,GU Shisen,LIU Wei et al. Inversion of Sea Surface Target of Spaceborne GNSS-R Based on PCA Algorithm[J]. jgg, 2022, 42(10): 991-994.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2022/V42/I10/991
[1]
WANG Juntao,ZHU Yongchao,GAO Fei,LI Jiangyang,TAO Tingye. Research on Detection Method of Water Distribution of Spaceborne GNSS-R Based on CYGNSS Data [J]. jgg, 2021, 41(8): 777-782.
[2]
PEI Yuekun,HAN Xinxin. Overview of GNSS-R Technique for Soil Moisture Detection [J]. jgg, 2021, 41(2): 140-144.
[3]
JIN Cong,LIN Song,DENG Xiaohu,CHENG Fei,CHENG Miao. Cross-Well Seismic Polarization Analysis Method Based on PCA and Its Application [J]. jgg, 2021, 41(12): 1300-1305.
[4]
QING Long,YUAN Linguo,HAO Jingkai,LI Bing,JIANG Zhongshan. Principal Component Spatial Filtering Analysis on Continuous GPS Network in Taiwan [J]. jgg, 2020, 40(8): 838-842.
[5]
WU Xuerui,JIN Shuanggen,SONG Yezhi,YANG Lei,LI Xuanran,SHA Rula. Progress on Soil Moisture Monitoring with GNSS-R/IR Technique [J]. jgg, 2019, 39(12): 1277-1282.
[6]
WANG Jian,ZHOU Xiaohui,ZHU Zhaohan,LIANG Linlin. Research on Elimination of Common Mode Error in Large-Scale GPS Networks [J]. jgg, 2018, 38(1): 78-82.
[7]
WU Fengbo,YUE Guosen,LIANG Jingzu,LI Yekun,DONG Xianfu. A Combination Algorithm Based on PCA and Lifting Wavelet to Extract Vibration Signal of Building Structure [J]. jgg, 2016, 36(9): 808-812.
[8]
GONG Guodong,HE Xiaoxing,HUA Xianghong,SHU Ying,DING Linghang. [J]. jgg, 2016, 36(11): 951-957.
[9]
YU Hongjuan,GUO Jinyun,LI Jiulong,MU Dapeng,KONG Qiaoli. Zero Drift and Solid Earth Tide Extracted from Relative Gravimetric Data
with Principal Component Analysis [J]. jgg, 2015, 35(5): 906-910.
[10]
Fang Ying;Jiang Zaisen;and Gu Guohua. INFLUENCE OF KUNLUN MOUNTAIN Ms8.1 EARTHQUAKE ON CRUSTAL MOVEMENT IN SICHUANYUNNAN REGION [J]. , 2008, 28(4): 25-30.