[1]ZHANG Fengshuang.Estimation on Velocity and Cycle of GPS Reference Stations in Yunnan Area Based on the Colored Noise Models[J].Journal of Seismological Research,2016,39(03):410-420.
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Estimation on Velocity and Cycle of GPS Reference Stations in Yunnan Area Based on the Colored Noise Models
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
39
Number of periods:
2016 03
Page number:
410-420
Column:
Public date:
2016-07-23
- Title:
- Estimation on Velocity and Cycle of GPS Reference Stations in Yunnan Area Based on the Colored Noise Models
- Keywords:
- Yunnan Area; GPS reference station; noise analysis of time-series; maximum likelihood estimate; optimal noise model
- CLC:
- P315.72
- DOI:
- -
- Abstract:
- Based on the calculation result of time series of the 3D coordinate recorded by 25 GPS continue observation stations in Yunnan Area from 2010 to 2014,we implemented the noise analysis on it by using different noise model combinations.The results suggest that the component of different station coordinate has the different noise feature,and the optimal noise models represent the characteristic of diversity,the model of flicker noise plus white noise and power law noise plus white noise is the main noise models in Yunnan.The distribution of optimal noise models of vertical components represents regional characteristics on both sides along the Red River Fault with NE.The quantitative analysis of the noise model and the movement parameters of observation station show that the influence of the noise model on the linear velocity uncertainty and annual cycle uncertainty is large,the velocity uncertainty and annual cycle uncertainty under colored noise model are 3～7 and 2～3 times of that under white noise model respectively.The noise model has a little influence on the velocity and the amplitude of the annual cycle,under colored noise model and white noise model,the linear velocity deviations of vertical component are less than 1 mm/a generally at majority stations,and they are more than 1 mm/a at minority stations.The deviations of annual cycle amplitude are less than 0.5 mm,and the deviations of vertical component are bigger than that of horizontal component,as well as the deviations of EW component are bigger than that of north component.
- References:
- -
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Last Update:
1900-01-01