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

Volume

49

Issue

3

fYear

2013

fDate

Jul-13

Firstpage

1781

Lastpage

1791

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;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/TAES.2013.6558019

Filename

6558019