NOISE LEVEL MEASUREMENT OF SG-053 WITH MLE
Wei Jin 1,2,3) ;Li Hui 2,3) ;Liu Ziwei 2,3) ; and Kang Kaixuan 2,3)
1)School of Geodesy and Geometics, Wuhan University,Wuhan 4300792)Institute of Seismology, CEA,Wuhan 4300713)Crustal Movement Laboratory, Wuhan 430071
Abstract The instrument noise level is one of the most important factor for the evaluation of SG053. The tidal gravity residual time series of the SG053 has been analyised with maximum likelihood estimation (MLE) and three noise(white noise, flicker noise, walk noise) models and their combination. It is shown that there is color noise in the tidal gravity residual,the white noise level is 1.40×10 -8 ms -2,the flicker noise 1.85×10 -8 ms -2 and the random walk noise 2.40×10 -8 ms -2. This analysis result is consistent with the tidal analysis.
Key words ：
superconducting gravimeter
residual time series
maximum likelihood estimation
noise level
white noise
Received: 01 January 1900
Corresponding Authors:
Wei Jin
[1]
.
[2]
LI Bing，YUAN Linguo，QING Long，ZHANG Di，LI Qinzheng. Weighted Mean Temperature Modeling with Seasonal Variations in Japan
[3]
LI Hang,CHEN Xiaodong,XU Jianqiao,SUN Heping,ZHANG Miaomiao,HAN Yufei. Comparison of Noise Levels between Gravimeters and Co-Located Seismometers at the Seismic Frequency Band
[4]
QI Wenlong,CHAI Hongzhou,YIN Xiao,DU Zhenqiang,SHI Mingchen. The Influence of Different ISB Models on GPS/BDS/Galileo Precise Point Positioning
[5]
.
[6]
.
[7]
WANG Jianguo，HU Xiaogang，LIU Lintao. Research on Lateral Features of Upper Mantle Medium in Chinese Central Mainland with Earth's Free Oscillation Normal Modes Excited by Moderate Earthquakes
[8]
WU Jicang,WANG Heng,WU Weiwei,CHEN Junping. Effect of Selecting Reference Frame on the Analysis Result of Continuous GPS Network Sites Position Time Series
[9]
JIANG Ying,LIU Ziwei,ZHANG Miaomiao,HAO Hongtao,LI Hui. Research on Background Noise Level of Global Superconducting Gravimeter
[10]
WU Weiwei,MENG Guojie,WU Jicang. Noise in GPS Coordinate Time Series for North China Fiducial Stations
[11]
HAN Yufei,JIANG Ying,ZHANG Xiaotong,ZHANG Rui,WANG Xinsheng,JIA Lulu. Research on Taiyuan gPhone Gravimeter Background Noise Level of CMONOC
[12]
Chen Xiaodong, Sun Heping, Zhang Weimin,Hao Xinghua. ACCURACY ANALYSIS ON DETERMINATION OF CALIBRATION
FACTOR OF A SUPERCONDUCTING GRAVIMETER USING AN
ABSOLUTE GRAVIMETER
[13]
Liu Ziwei;Hao Hongtao ;Wei Jin ;and Li Hui . DETECTION OF EARTH’S FREE OSCILATION EXCITEDBY CHILE Ms8.8 EARTHQUAKE BY USING SG-C053 SUPER CONDUCTING GRAVIMETER
[14]
Liu Ziwei;Li Hui ;Wei Jin;Hao Hongtao ; and Wu Yunlong . ACCURATE DETERMINATION OF CALIBRATION FACTOR OF gPhone SPRING GRAVIMETERS BY USING M2 TIDAL WAVE AMPLITUDE FACTOR
[15]
Zhang Rui ;Wei Jin;Liu Ziwei;Li Hui ;and Hao Hongtao . ACCURATE DETERMINATION OF SCALE VALUE OF gPh058 GRAVIMETER BY USE OF OBSERVATIONS WITH SGC053 SUPERCONDUCTING GRAVIMETER
