NAVIC

CONTENTSINTRODUCTIONHISTORYSATNAVSINDIA’S SATNAVSGNSS SATNAV’SGPS SATNAV’SADVANTAGESDISADVANTAGESAPPLICATIONSREFRENCESQUERIES

INTRODUCTION• NAVIGATION SATELLITE

IS GENERALLY KNOWN AS SATNAV .SATNAV MEANS USING PORTABLE RECEVIER PICKING UP THE SIGNALS FROM ORBITING SATELLITES. INDIA OWN GPS IS CALLED GAGAN OR NAVIC

HISTORYTHE FIRST SATELLITE WHICH ENTERED

INTO SPACE IS SPUTINK ON 4 OCT 1957.GALILEO’S CONSTELLATION LEADS

TO INVENTION OF SATNAV’S

DEVELOPMENTAS PART SATNAV PROJECT , ISRO OPENED A NEW SATNAV CENTER WITH IN THE CAMPUS OF DEEP SEA NETWORK AT BYALALU IN KARNATAKA ON 28 MAY 2013.

SATNAV’STHE FIRST SATNAV WHICH ENTERED THE SPACE IS GIOVE-A ON 28 DEC,2005 .ON 2008 SECOND LAUNCHED IN TO ORBIT.INDIA LANUCHED IT’S FIRST SATNAV ON 12 JUNE 2013.

INDIA’S SATNAV’S

IRNSS-1A - 12 JUNE 2013IRNSS-1B - 4 APRIL 2014IRNSS-1C - 10 NOV2014IRNSS-1D - 28 MAR2015IRNSS-1E - 20 JAN 2016IRNSS-1F - 10 MAR 2016IRNSS-1G - 28 APRIL 2016

FEATURES OF SATNAV’SIRNSS USED TO PROVIDE REAL TIME POSITIONING.IT ALSO PROVIDES PNT SERVICES ,PSCC AND RSSA SERVICES.FREQUENCY ALLOCATION PROBLEMS ARE LESS.WORLD WIDE CONTINUES COVERAGE

TYPESOF SATNAV’S SATNAV’S ARE CLASSIFIED IN TO TWO TYPES

THEY ARE:1.GNSS 2.GPS

GNSS SATNAVHISTORY:

IN 2000,UN CONFERENCE ON EXPLORATION AND PEACEFUL USES OF OUTER SPACES(UNISPACE-III) ESTABLISHED GNSS.38 MEMBERS STATES AND 15 ORGANISATIONS ARE ACTIVELY PARTICIPATED IN IT.

DEFINITIONGNSS: A SATNAV WITH GLOBAL COVERAGE MAY TERMED AS GNSS .GNSS IS PLACED AT AN ALTITUDE OF 20,000km FROM EARTH

CLASSIFICATION OF GNSSGNSS ARE CLASSIFIED AS FOLLOWS AS:1.GNSS-1 WITH SATELLITE BASED AUGMENTATION SYSTEM2.GNSS-2 PROVIDED FOR CIVILIAN NAVIGATION 3.GROUND BASED AUGMENTATION SYSTEM(GBPS)4.DEPARTMENT OF TRANSPORTATION NATIONAL SERVICE

DEVELOPMENT OF GNSS

GPSGPS IS DEVOLPED BY UNITED STATES DEPARTMENT

OF DEFENCE.IT IS PROVIDED BY CONSELLTATION OF THE 24 TO 33 EARTH ORBIT SATELLITES.

CONCEPT OF GPSCONCEPT INVOVLED

IN GPS IS TRIANGULATION.

IT PROVIDES THREE DIMENSIONAL SIGNALS

SEGMENTS OF GPSTHERE ARE THREE SEGMENTS OF GPS:SPACE SEGMENTCONTROL SEGMENT USER SEGMENT

SEGMENTS OF GPS• SPACE

SEGMENT: 24 SATELLITES

ROTATE IN CIRCULAR ORBITS.21 ARE FUNCTIONING AND 3 ARE ORBITL OPERATIONAL

SEGMENTS OF GPS•CONTROL SEGMENT: IN THESE SATELLITES ARE MONITORED BY GPS MASTER CONTROL STATION

SEGMENTS OF GPS

• USER SEGMENT:IT CONTAINS TWO

SERVICES STANDING POSITIONING SERVICE(SPS) AND PRECISE POSITIONING SERVICE(PPS)

GPS ON ROADS

DIMENSIONS OF GPS NAVIGAOR

HEIGHT:2.5”WIDTH:1.6”THIN:0.7”WEIGHT:50g

COMPARISION OF GNSS AND GPS

ADVANTAGES

SMALL AND PORTABLELONG BATTERY LIFESMS AND EMAIL ALERTSACCURACY IS MORE

DISADVANTAGES

SIGNALS ARE LOW IN VILLAGES

USES OF GPS• USEFUL FOR HANDICAPPED PERSONS• USEFUL FOR COPS• USEFUL FOR ASTRONAUTS

APPLICATIONS OF SATNAV

ROADS AND FIELDSAIRWAYSMARINESMILTARY AND NAVY

APPLICATIONS OF SATNAV

• ROADS AND FIELDSON ROADS TO LOCATE EXACT LOCATINSFARMERS USES GPS TO PRESICE AND ESTIMATE HARVESTATION

APPLICATIONS OF SATNAV

• RAILWAY TRACKS : TO AVOID TRAINACCIDENTS GPSIS USED.

APPLICATIONS OF SATNAV

APPLICATIONS OF SATNAV

• AIRWAYS

SOME TIMES AT RESCUE OPERATION AIRCRAFTS WITH GPS IS NECESSARY

APPLICATIONS OF SATNAV

SHIPS WITH GNSS IS TO FIND LOCATIN OF SPACES

APPLICATIONS OF SATNAV

• MILTARY AND NAVY

SATNAV’S ARE USED TO FIND OUT THEARTS

FUTURE SCOPE• In future we all see our mobile phones with IRNSS

receivers.

CONCLUSION• SATNAV’S PLAYS VITAL ROLE IN THE

DEVELOPMENT OF INDIA.

QUERIES

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