A vehicle location system (VLS) solution approach

Author

Chadwick, J. Brooks ; Bricker, J.L.

Author_Institution

Hughes Aircraft Co., Fullerton, CA, USA

fYear

1990

fDate

20-23 Mar 1990

Firstpage

127

Lastpage

132

Abstract

The Hughes vehicle location system (VLS), which locates and tracks one or more asynchronous aperiodic transmitters in either two or three dimensions, is described. It uses a dynamic receiver time-of-arrival (TOA) source selection, a direct hyperbolic position location solution, and an observation noise filter. For tracking a transmitter in two dimensions in an overdetermined system, hyperbolic geometric-dilution-of-precision (GDOP) is used to select an optimum subset of TOA triplets and to form a weighted position estimate. Particular emphasis is placed on the 2-D direct solution approach. The effect of observation noise on position estimation error in 2-D for an overdetermined system is demonstrated, and the derivation of the 2-D direct solution approach is presented

Keywords

aircraft instrumentation; computerised navigation; computerised signal processing; digital simulation; position measurement; tracking systems; 2-D direct solution; Hughes vehicle location system; asynchronous aperiodic transmitters; computerised navigation; direct hyperbolic position location; dynamic receiver time of arrival source; hyperbolic geometric-dilution-of-precision; noise; observation noise filter; position estimation error; tracking; weighted position estimate; Apertures; Clocks; Estimation error; H infinity control; Protection; Protective relaying; Relays; Transmitters; Vehicles; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Position Location and Navigation Symposium, 1990. Record. The 1990's - A Decade of Excellence in the Navigation Sciences. IEEE PLANS '90., IEEE

Conference_Location

Las Vegas, NV

Type

conf

DOI

10.1109/PLANS.1990.66166

Filename

66166