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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