PPP RAPID CONVERGENCE ALGORITHM BASED ON REGIONAL ENHANCED INFORMATION
Zheng Yanli 1) ; Liu Jingnan 1) ;Song Weiwei 1) ; and Sun Hua 2)
1)Research Center of GNSS, Wuhan University, Wuhan 430079;2)Xiantao City Geotechnical Investigation and Surveying Designing Institute,Xiantao 433000
Abstract On the basis of a regional CORS reference network, single differenced OMC between satellites were modeled with polynomial fitting model. Rover receiver within the network coverage can get OMCs by interpolation, widelane phases. Widelane phase observation can be corrected with the OMCs.With the corrected widelane observations and ionospherefree code observations, widelane ambiguities can be fixed instantaneously. Once the widelane ambiguities were fixed, widelane phase observations become precise code observations, with ionospherefree phase, instantaneous PPP convergence can be achieved. The strategy is validated experimentally with Jiangsu CORS reference network, whose baseline lenths are 49 km and 110 km respctively. The validation confirms that with regional enhancement, widelane can be fixed in two epochs, PPP convergence can be achieved simultaneously.
Key words ：
precise point positioning（PPP）
LAMBDA
regional augmentation
instantaneous convergence
observed minus calculated(OMC)
Received: 01 January 1900
Corresponding Authors:
Zheng Yanli
Cite this article:
Zheng Yanli ,Liu Jingnan ,Song Weiwei et al. PPP RAPID CONVERGENCE ALGORITHM BASED ON REGIONAL ENHANCED INFORMATION[J]. , 2012, 32(4): 111-115.
Zheng Yanli ,Liu Jingnan ,Song Weiwei et al. PPP RAPID CONVERGENCE ALGORITHM BASED ON REGIONAL ENHANCED INFORMATION[J]. jgg, 2012, 32(4): 111-115.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2012/V32/I4/111
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