Transcript 1 Baumanetz microsatellite Bauman Moscow State Technical University

Bauman Moscow State Technical
University
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NPO Mashinostroeniya
MSTU named after Bauman and
Joint project
Baumanetz microsatellite
Bauman Moscow State Technical
University
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Globalstar services area definition
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Downlink possibility definition
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Uplink possibility definition
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Displacement possibility definition
NPO Mashinostroeniya
MSTU named after Bauman and
Joint project
Tasks:
Bauman Moscow State Technical
University
Onboard equipment
Qualcomm GSP 1620
Plate size
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Antenna size
NPO Mashinostroeniya
MSTU named after Bauman and
Joint project
Plate mass
Antenna mass
Voltage
Consumption
Temperature range
190 x 75 x 17 mm
180 g
ø103 mm,h=63mm
250 g
5.6-16 V
5.4 W
-30°С … +60°C
Interfaces
DB9, RS232
Data bit rate
9,6 kilo bps
Bauman Moscow State Technical
University
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NPO Mashinostroeniya
MSTU named after Bauman and
Joint project
Scheme of commutation
Bauman Moscow State Technical
University
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Satellites trajectory
NPO Mashinostroeniya
MSTU named after Bauman and
Joint project
Modelling
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Possibility of connection ≈30 % flight time
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Average time of connection 3..5 minutes
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Max Doppler effect less than 40 kHz
Bauman Moscow State Technical
University
Position algorithm
AT$QCPLS
measurements
N: <Degrees> <Minutes> <Seconds>
W: <Degrees> <Minutes> <Seconds>
Orbit plane
TIME: <Years>:<Days>:<Hours>:<Minutes>:<Seconds>
OK
NPO Mashinostroeniya
Minimum 4 measurements
Field of differences in main axis
f0
Orbit parameters
e
Variation of eccentric and pericenter
argument
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MSTU named after Bauman and
Joint project
ERR: <positioning error>
Real anomaly
Eccentric anomaly
Average motion
for 2 measurements
Main axis
for
2 measurements
Minimization
differences of main
axis for pair
measurements