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BHARATI VIDYAPEETH COLLEGE OF ENGINEERING
RITESH ANANDSWAPNIL MISHRA
PROJECT GUIDE : Prof. A. V. SUTAR
INTRODUCTION
BVCOE GROUND STYATION TEAM WITH H.O.D AND PRINCIPAL
GROUND STATION TEAM WITH IITB “PRATHAM” TEAM MEMBERS
INFORMATION ABOUT PRATHAM
•DIMENSION 260mm X 260mm X260mm
•WEIGHT 10KG
•10:30 POLAR SUN SYNCHRONIZED ORBIT
•3 MONOPOLE ANTENNA
•KILL SWITCH
•AUTONOMOUS
EXPLODED VIEW OF PRATHAM
OBJECTIVE
• Low cost Ground Station
• TEC (Total Electron Count)
TEC :PLOT OF ELECTRON DENSITY WITH RESPECT TO LATTITUDE AND LONGITUDE IS CALLED TOTAL ELECTRON COUNT MAP(TEC).
FARRADAY’S LAW
∆ɸ=4.87*10-4*f-2 ʃ ΝΒcosӨ dl
∆ɸ = CHANGE IN ANGEL OF POLARIZATION PLANE Ν = ELECTRON DENSITY B = MAGNETIC FIELD OF EARTH Ө = ANGLE BETWEEN THE MAGNETIC FIELD AND THE DIRECTION OF PROPAGATION OF THE RADIO WAVE. f = FREQUENCY
Roll of Our Ground Station(contd.)
ANTENNA
Two crossed yagi antenna
Centre frequency 437 MHz and 145
MHz
MOUNTControl
Circuit(PIC µC)
LAB UNIT
LNA
LNA
LNA
LNA
Polarization Circuit
Polarization Circuit
Analog to Digital
ConverterPC
Receiving Section
OUR APPROACH
Tracking Section
BURNING UNIT
ROOF UNIT
PC(RTT)
Fabricated Antenna
Fully fabricated antenna at centre frequency 437Mhz
Fully fabricated antenna at 145 MHz frequency.
RotatorARS
TRACKING SYSTEMS
LAB UNIT
BURNING UNIT PC(RTT)
TRACKING SECTION
MOUNT
ROOF UNIT
Control Circuit(PI
C µC)
ALGORITHM FOR STEPPER MOTOR 1
TD= TOTAL DURATION
DELAY
ACCESS VARIABLE
SA=STEP ANGLE
AOSS=ACQUISITION OF SIGNAL START
AOSE= ACQUISITION OF SIGNAL END
START
ANGLE PER SECOND
APS=(AOSE-AOSS)/TD
TOTAL STEPS
TS= NSS x TD
NUMBER OF STEPS PER SECOND
NSS=APS/SA
EXECUTE
TS=TS-1
DELAY
DELAY= TD/TS
CHECK
IF TS=0
END
RESET
NO
YES
START
ME= max. elevation
AE= ME-0.05ME
EXECUTION
END
ALGORITHM FOR STEPPER MOTOR 2
Real Time SatelliteTracking Software
Real Time SatelliteTracking Software
CONCLUSION
•TEC MAP OF INDIA.
•Application of Theory.
•Commercial Application of TEC.
•Social Goal
THANK YOU