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BHARATI VIDYAPEETH COLLEGE OF ENGINEERING RITESH ANAND SWAPNIL 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
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BHARATI VIDYAPEETH COLLEGE OF ENGINEERINGRITESH ANANDSWAPNIL MISHRAPROJECT GUIDE : Prof. A. V. SUTAR
INFORMATION ABOUT PRATHAM • DIMENSION 260mm X 260mm X260mm • WEIGHT 10KG • 10:30 POLAR SUN SYNCHRONIZED ORBIT • 3 MONOPOLE ANTENNA • KILL SWITCH • AUTONOMOUS
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 ΝΒcosӨdl ∆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
OUR APPROACH ANTENNA Two crossed yagi antenna Centre frequency 437 MHz and 145 MHz Receiving Section LNA Polarization Circuit Analog to Digital Converter PC LNA LNA Polarization Circuit LNA Tracking Section ROOF UNIT LAB UNIT Control Circuit(PIC µC) BURNING UNIT PC(RTT) MOUNT
Fully fabricated antenna at centre frequency 437Mhz Fabricated Antenna Fully fabricated antenna at 145 MHz frequency.
TRACKING SYSTEMS Rotator ARS
TRACKING SECTION ROOF UNIT LAB UNIT BURNING UNIT PC(RTT) Control Circuit(PIC µC) MOUNT
ALGORITHM FOR STEPPER MOTOR 1 START ACCESS VARIABLE SA=STEP ANGLE AOSS=ACQUISITION OF SIGNAL START AOSE= ACQUISITION OF SIGNAL END NO TD= TOTAL DURATION DELAY YES ANGLE PER SECOND APS=(AOSE-AOSS)/TD NUMBER OF STEPS PER SECOND NSS=APS/SA TOTAL STEPS TS= NSS x TD DELAY= TD/TS EXECUTE DELAY TS=TS-1 CHECK IF TS=0 RESET END
ALGORITHM FOR STEPPER MOTOR 2 START ME= max. elevation AE= ME-0.05ME EXECUTION END
Real Time Satellite Tracking Software
Real Time Satellite Tracking Software
CONCLUSION • TEC MAP OF INDIA. • Application of Theory. • Commercial Application of TEC. • Social Goal