Open AccessDoppler‐aided rapid positioning method for BDS receivers
Author(s) -
Jing Shourang,
Xu Bo,
Yong Ling,
Sun Guangfu
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2015.1033
Subject(s) - computer science , constellation , doppler effect , position (finance) , satellite , remote sensing , satellite navigation , beidou navigation satellite system , doppler frequency , satellite constellation , geodesy , real time computing , global positioning system , gnss applications , algorithm , telecommunications , geography , engineering , physics , aerospace engineering , finance , astronomy , economics
BeiDou navigation satellite system (BDS) adopts mixed constellation design. In addition, the rate of GEO NAV message is 500 bit/s. Therefore, a rapid BDS positioning algorithm with Doppler‐aided is presented to reduce the time to first fix. First, the approximate position is obtained using full pseudo‐ranges of GEO satellites and Doppler of all visible satellites. Secondly, the full pseudo‐ranges of non‐GEO satellites can be constructed with the approximate and reference GEO satellites. Finally, the receiver position can be estimated with full pseudo‐ranges in an accurate manner. Experimental data processing results show that the proposed method is effective to estimate receiver position.