Title :
Ultratight GPS/Reduced-IMU Integration for Land Vehicle Navigation
Author :
Debo Sun ; Petovello, Mark G. ; Cannon, M.E.
Author_Institution :
Univ. of Calgary, Calgary, AB, Canada
Abstract :
A reduced inertial measurement unit (RIMU) is ultratightly (UT) integrated with a vector-based Global Positioning System (GPS) receiver using two approaches; vector delay and frequency lock loops (VDLL/VFLL), and a VDLL with a cascaded phase lock loop (CaP). A CaP plus a frequency discriminator (CaPF) composite loop is developed to provide reliable Doppler measurements and improves navigation performance by up to 20% compared with other methods using real world data.
Keywords :
Doppler measurement; Global Positioning System; frequency locked loops; phase locked loops; radio receivers; units (measurement); CaP plus a frequency discriminator composite loop; CaPF composite loop; Doppler measurements; GPS receiver; Global Positioning System receiver; RIMU; cascaded phase lock loop; land vehicle navigation; reduced inertial measurement unit; ultratight GPS-reduced-IMU integration; vector delaylock loops; vector frequency lock loops; Doppler effect; Doppler measurement; Frequency measurement; Global Positioning System; Phase locked loops; Tracking loops;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2013.6558019
