 |
DTIC ADA1029080: Attitude Determination of a Spinning and Tumbling ... |
 |
by Defense Technical Information Center |
 |
Thumbnail |
|
Download |
 |
Web page |
|
|
|
This technical note reports on the attitude determination |
|
of Air Force Rocket No. A31.603 on which an ion emission |
|
experiment was performed. Two orthogonal magnetometers, |
|
one facing forward along the rocket spin axis and the |
|
other facing sideways, provide magnetic field component |
|
data. The bias-offset and scaling (signal conversion) |
|
factor are not given, but can be determined in a |
|
sinusoidal approximation. The algorithm used for |
|
generating magnetic pitch angles is discussed and an |
|
error analysis is provided. In a local vertical |
|
coordinate system, two sets of elevation angles are found |
|
for the tumbling rocket, and the set that satisfies an |
|
initial condition exactly is the correct one. The |
|
deviation of the rocket tumbling plane from the vertical |
|
plane can be determined at the times of closest encounter |
|
of the magnetic field vector and rocket vector. The |
|
deviation at all times can be approximately determined by |
|
sinusoidal curve fitting with tumbling frequency. The |
|
angles between the rocket vector and moonlight vector |
|
during the instants of moonviews at the onboard camera |
|
are also calculated. (Author) |
|
|
|
Date Published: 2020-02-20 08:46:20 |
|
Identifier: DTIC_ADA1029080 |
|
Item Size: 19838143 |
|
Language: english |
|
Media Type: texts |
|
|
|
# Topics |
|
DTIC Archive; Lai, Shu T ; AIR FORCE ... |
|
|
|
# Collections |
|
dticarchive |
|
additional_collections |
|
|
|
# Uploaded by |
|
@chris85 |
|
|
|
# Similar Items |
|
View similar items |
|
|
|
PHAROS |
|
