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