NDLI: Range filtering for sequential gps receivers with external sensor augmentation

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Range filtering for sequential gps receivers with external sensor augmentation

Content Provider	NASA Technical Reports Server (NTRS)
Author	Paielli, Russell
Copyright Year	1987
Description	The filtering of the satellite range and range-rate measurements from single channel sequential Global Positioning System receivers is usually done with an extended Kalman filter which has state variables defined in terms of an orthogonal navigation reference frame. An attractive suboptimal alternative is range-domain filtering, in which the individual satellite measurements are filtered separately before they are combined for the navigation solution. The main advantages of range-domain filtering are decreased processing and storage requirements and simplified tuning. Several range filter mechanization alternatives are presented, along with an innovative approach for combining the filtered range-domain quantities to determine the navigation state estimate. In addition, a method is outlined for incorporating measurements from auxiliary sensors such as altimeters into the navigation state estimation scheme similarly to the satellite measurements. A method is also described for incorporating inertial measurements into the navigation state estimator as a process driver.
File Size	1300474
Page Count	22
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19870010824
Archival Resource Key	ark:/13960/t50g8js2x
Language	English
Publisher Date	1987-04-01
Access Restriction	Open
Subject Keyword	Aircraft Communications And Navigation Augmentation Inertial Navigation Global Positioning System Receivers Navigation Aids Microwave Sensors Satellite Navigation Systems Altimeters Kalman Filters Sequencing Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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