Attitude determination of satellites is normally the job of
inertial instruments, such as gyroscopes, or through sensing
instruments, such as star trackers orGlobal Positioning Satellites
(GPS). Satellite health monitoring systems watch and determine if
the satellite deviates from its normal operating
attitudeorientation. Knowing the orientation of a satellite is
essential in being able to control it in order to complete the
satellite's designated mission. While there area multitude of ways
to determine a satellite's orientation, very little research has
been done on determining if the attitude of a satellite can be
determineddirectly from telemetry data of the attitude control
systems and an accurate spacecraft model. The fidelity of a
satellite attitude determination model requiredto get reasonable
predictions from using only telemetry data of the attitude
controllers, such as thruster on/off indicators and reaction wheel
rotor speeds, isinvestigated. Experimental tests using telemetry
data received from the Air Force Institute of Technology's (AFIT)
Simulated Satellite, SimSat, is used inverifying a Matlab model
which outputs SimSat's orientation from SimSat's reaction wheel and
thruster telemetry data. Software modeling results showed thatit is
possible to determine a satellite's attitude from only the attitude
controllers' telemetry data when the satellite's dynamic model is
known.
General
| Imprint: |
Biblioscholar
|
| Country of origin: |
United States |
| Release date: |
October 2012 |
| First published: |
October 2012 |
| Authors: |
Jason E. Smith
|
| Dimensions: |
246 x 189 x 8mm (L x W x T) |
| Format: |
Paperback - Trade
|
| Pages: |
142 |
| ISBN-13: |
978-1-249-59413-0 |
| Categories: |
Books >
Social sciences >
Education >
General
|
| LSN: |
1-249-59413-8 |
| Barcode: |
9781249594130 |
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