Submeter real-time differential GPS and attitude determination for unmanned navigation

M. Elizabeth Cannon; Gerard Lachapelle

doi:10.1117/12.241088

27 May 1996 Submeter real-time differential GPS and attitude determination for unmanned navigation

M. Elizabeth Cannon, Gerard Lachapelle

Proceedings Volume 2738, Navigation and Control Technologies for Unmanned Systems; (1996) https://doi.org/10.1117/12.241088
Event: Aerospace/Defense Sensing and Controls, 1996, Orlando, FL, United States

Abstract

The performance of real-time differential GPS navigation are affected by the satellite constellation available, the characteristics of user equipment, the data processing method used, the specifications of the data link used to broadcast the data from the reference station to the mobile platform, and the distance between the reference station and the platform. Each of the above parameters are discussed and related errors are quantified. The effect of user equipment characteristics such as code and carrier phase noise, multipath rejection capability, and number of tracking channels, is discussed. The use of latency is quantified as a function of the data processing method and receiver type used. Various aircraft positioning case studies are used to illustrate the capability of the system under various conditions. Attitude determination using a multi-antenna configuration is described, together with limitations due to fuselage stability and wing flexing. The results of various flight test are described to illustrate the performance levels achievable.

Citation Download Citation

M. Elizabeth Cannon and Gerard Lachapelle "Submeter real-time differential GPS and attitude determination for unmanned navigation", Proc. SPIE 2738, Navigation and Control Technologies for Unmanned Systems, (27 May 1996); https://doi.org/10.1117/12.241088

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KEYWORDS

Global Positioning System

Receivers

Data processing

Lithium

Antennas

Kinematics

Satellites

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