synthetic aperture radar system full report

[seminar class]

PRESENTED BY
LAVANYA.N

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INTRODUCTION
• SAR IS AN IMAGING RADAR SYSTEM
• SAR SENDS MICRO WAVE PULSES TO THE SURFACE OF THE EARTH
• SAR SYSTEM PLACED ON SATELLITES FOR THE IMAGING PROCESS
X-BAND SAR INSTRUMENT DEMONSTRATOR
A RADIATOR WITH THE 30 RADIATOR SUBARRAYS
A SINGLE SUBARRAY
PROCESSING AND STORAGE SUBSYSTEM
• BUFFERING OF THE SAR RAW DATA STREAM IN REAL TIME
• OFF LINE IMAGE PROCESSING AND COMPRESSION OF THE BUFFERED SAR DATA
• MASS MEMORY DATA MANAGEMENT AND ORGANISATION
• REFORMATTING AND OUTPUT OF COMPRESSED DATA AT DOWNLINK RATE
PROCESSING AND STORAGE ARCHITECTURE
TOPAS ARCHITECTURE
ADVANTAGES
• OPERATIONAL UNDER ALL WEATHER CONDITIONS WITH THE CAPABILITIES FOR SENSING THE EARTH DAY AND NIGHT
• PROVIDES DESCRIPTION OF SURFACE TEXTURE
• HAS OWN SOURCE OF ILLUMINATION
• CLOUD AND FOG COVER ARE NOT A PROBLEM
• VEGETATION AND SUBSURFACE PENETRATION CAPABILITIES
DISADVANTAGES
• IMAGE DISTORTION
• COARSE RESOLUTION
• EXTENSIVE SHADOWING OF AREAS CHARACTERISED WITH RELIEF
APPLICATIONS
• OBSERVATION OF VOLCANIC ACTIVITIES AND FLOOD DISASTERS
• LAND AND SEA MONITORING
• OBSERVATION OF VEGETARIAN GROWTH
• MONITORING OF OCEAN CURRENTS AND TRAVELING ICEBERGS
• DETECTION OF OIL SPILLS IN OCEANS
CONCLUSION
• SAR IS A WELL ESTABLISHED PART OF RADAR ART
• THE CAPABILITY TO OPERATE UNDER ALL WEATHER CONDITIONS