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Determination of angles of attack and sideslip from radar data and a roll-stabilized platformEquations for angles of attack and sideslip relative to both a rolling and nonrolling body axis system are derived for a flight vehicle for which radar and gyroscopic attitude data are available. The method is limited to application where a flat, nonrotating earth may be assumed. The gyro measures attitude relative to an inertial reference in an Euler angle sequence. In particular, a pitch, yaw, and roll sequence is used as an example in the derivation. Sample calculations based on flight data are presented to illustrate the method. Results obtained with the present gyro method are compared with another technique that uses onboard camera data.
Document ID
19720012071
Document Type
Technical Memorandum (TM)
Authors
Preisser, J. S. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 2, 2013
Publication Date
March 1, 1972
Subject Category
NAVIGATION
Report/Patent Number
NASA-TM-X-2514
L-7886
Funding Number(s)
PROJECT: RTOP 117-07-04-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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