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8/13/2019 Windowing Effect on SAR Image Formation
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AAnalysis of Windowing Enalysis of Windowing Eon Synthetic Aperture Ron Synthetic Aperture R
Raw FocusedRaw Focused--Image FormImage Form
Rahmat Arief anDivison of Acuisition and !round Stat
Remote Sensing "echnology a
Indonesian $ational Institute of Aeronautics and
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Introduction Synthetic Aperture Radar (SAR)
SAR Image Formation Algorithms
SAR Image Quality Parameters
Sidelobes and Its Suppression
Methods n o! unct on
SAR Image Quality Measurement
Simulation and Results
"onclusion
Re#erences
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IntrIntr
$he use o# Synthetic Aperture Radar
has been increased% recently&
hy radar (SAR)'
SAR has o!n illumination able to o
and night SAR penetrates cloud and precipitati!eather system
SAR pro*ides di##erent #eature o# ob+complementary o# optical image
("ummi
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IntrIntr
Se*eral SAR image #o
ha*e de*eloped to prsuch as Range 0opple"hirp Scalling algorit2 algorithm and Spec
SAR image #ormationo# a coherent%integration o# the rsamples (Reigber% et&al% -
SAR Ac4uisition System
R0A is o#ten usedachie*e bloc5 procusing #re4uency domboth range andmaintaining the sidimensional operatio-../)
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IntrIntr SAR image 4uality re#ers to7
impulse response properties o# radar8proccombination and response o# the system toscatterers (9ipscomb% -..-)
$he per#ormance o# SAR image7
characteri6ed through its impulse responseresponse #unction (IRF) obtained by me
%ground% called point target
("umming , ong% -../: 9ipscomb% -
$he most important 4uality parametbe measured #rom the point target ar
the impulse response !idth (IR) that de#resolution
the pea5 or integrated sidelobe ratio (PS9Rpertains to image contrast
("umming , ong% -../: 9ipscomb% -
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IntrIntr Radar signal beam consists o# mainlobe and
Sidelobe or spilled energy is generated by bnature o# the data that causes un#ocusing ohence the appearing o# target !ill be !orseto interpretate
;enerally% it is considered
sidelobes% or at least redu
more tolerable le*
A6imuth beam pattern o# point target
and image resulted
!indo!8!eighting #unctio
#ormation to impro*e th
image result (Moreira% 3ouse&
9ipscomb% C& (-..-)& SAR Image Quality& Alas5a&
S5olni5% M& (-..3)& Introduction to radar systems$ %rd ed#
@enere% 9& M& (-.3-)& SAR Image &uality Assesment# "ordoDni*ersidad Eacional de "ordoba&
ore ra% &% e &a & ( en e rp ca ng gor mSpaceborne SAR Data !rocessing in Stripmap and ScanSARIBBB $ransactions on ;eoscience and Remote Sensing oSeptember 3
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