An Accurate Strapdown Direction Cosine Algorithm PDF Download

Author: John W. Jordan
Publisher:
ISBN:
Category : Inertial navigation systems
Languages : en
Pages : 20

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 400

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Author: Rongsheng (Ken) Li
Publisher: Artech House
ISBN: 163081704X
Category : Technology & Engineering
Languages : en
Pages : 440

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Book Description
This is the first book on the topic of all source positioning, navigation and timing (PNT) and how to solve the problem of PNT when the most widely-used measurement source available today, the GPS system, may be come unavailable, jammed or spoofed. Readers learn how to define the system architecture as well as the algorithms for GPS-denied and GPS-challenged PNT systems. In addition, the book provides comprehensive coverage of the individual technologies used, such as celestial navigation, vision-based navigation, terrain referenced navigation, gravity anomaly referenced navigation, signal of opportunity (SOO) based PNT, and collaborative PNT. Celestial Navigation is discussed, with stars and satellite used as reference, and star-tracker technology also included. Propagation based timing solutions are explored and the basic principles of oscillators and clocks presented. Initial alignment of strap-down navigation systems is explored, including initial alignment as a Kalman filter problem. Velocimeter/Dead reckoning based navigation and its impact on visual odometry is also explained. Covering both theoretical and practical issues, and packed with equations and models, this book is useful for both the engineering student as well as the advanced practitioner.

Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 956

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Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 964

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Author: United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 966

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Author:
Publisher:
ISBN: 9814475238
Category :
Languages : en
Pages :

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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 728

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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Author: Myron Kayton
Publisher: John Wiley & Sons
ISBN: 9780471547952
Category : Technology & Engineering
Languages : en
Pages : 806

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Book Description
Eine konsistente Behandlung der Technologie moderner Navigationssysteme - für den Entwicklungsingenieur ebenso wie für den Betreiber existierender Anlagen. Der Autor, ein erfahrener Praktiker, geht in dieser zweiten, aktualisierten Auflage auch auf neueste Entwicklungen in Theorie, Hard- und Software ein, wie sie beispielsweise in Satellitensystemen, elektronischen Fahrzeugsteuerungen und Landesystemen Anwendung finden.

Author: John E. Bortz (Sr.)
Publisher:
ISBN:
Category : Hybrid computers
Languages : en
Pages : 234

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Book Description
In conventional strapdown inertial navigation systems, the coordinate transformation matrix differential equation is integrated in the computer of the system. This computation typically requires 30 to 60 percent of the time budget of the computer. A method is presented in this report for significantly reducing the digital computation burden through the use of hybrid computational techniques. Analog correction signals for the non-commutativity phenomenon are fed onto the gyro torque generators causing the gyros to integrate a vector differential equation in the rotation vector argument of the coordinate transformation matrix. The coordinate transformation matrix is then merely evaluated as a matrix function of the rotation vector argument. A 20 to 1 reduction in the digital computer time budget can thus be realized.