BHARATI VIDYAPEETH COLLEGE OF ENGINEERING RITESH ANAND SWAPNIL MISHRA PROJECT GUIDE : Prof. A. V. SUTAR

INTRODUCTION

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

ANTENNA Two crossed yagi antenna Centre frequency 437 MHz and 145 MHz MOUNT Control Circuit(PI C µC) LAB UNIT LNA Polarization Circuit Analog to Digital Converter PC 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.

Rotator ARS 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

CONCLUSION TEC MAP OF INDIA. Application of Theory. Commercial Application of TEC. Social Goal

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