INVESTIGATION ON CHARACTERISTICS OF RECEIVER’S INITIAL PHASE BIAS CHANGE
Zheng Bin; Wu Shunxiao; Liu Zengjun; and Ou Gang
Satellite Navigation R&D Center, School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073
Abstract Satellite and receiver’s Initial Phase Biases (IPBs) have a significant influence on ambiguity resolution and convergence time of precise point positioning (PPP).The current receiver IPB is experimentally confirmed to be different when the receiver is turned off and back on. However, its underlying characteristics are seldom investigated in available literatures. On the basis of receiver design and carrier phase measurement mechanism, the article analyzed the impacts of frequency synthesizer, mixer, digital down converter and tracking loop on carrier phase measurement generation. Meanwhile, the mathematical models of carrier phase measurement and IPB are derived. Finally, the receiver IPB’s longterm stability and characteristics according to loss of lock, time adjust and poweron cycle are validated by experiment using navigation signal source and receiver platform.
Key words ：
Precise Point Positioning(PPP)
navigation receiver
carrier phase
initial phase bias
integer ambiguity
Received: 01 January 1900
Corresponding Authors:
Zheng Bin
Cite this article:
Zheng Bin,Wu Shunxiao,Liu Zengjun et al. INVESTIGATION ON CHARACTERISTICS OF RECEIVER’S INITIAL PHASE BIAS CHANGE[J]. , 2012, 32(4): 139-143.
Zheng Bin,Wu Shunxiao,Liu Zengjun et al. INVESTIGATION ON CHARACTERISTICS OF RECEIVER’S INITIAL PHASE BIAS CHANGE[J]. jgg, 2012, 32(4): 139-143.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2012/V32/I4/139
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