ALOS Data Users Handbook

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Section 3 Outline of ALOS Satellite System3.2.1.3 PALSARPALSAR is an L band Synthetic Aperture Radar which can change off-nadir angle in the range from 9.7 to 50.8degrees. Spatial resolution at off-nadir 34.3 degrees is 10m for the high resolution mode. PALSAR also has awide area observation mode called ScanSAR. An observation concept of PALSAR is shown in Figure 3.2-5.ALOSFlightDirection35゚48゚18゚Wide AreaObservation ModeHigh Resolution ModeEarth RotationDirectionFigure 3.2-5 PALSAR Observation Concept3-14
ALOS Data Users HandbookInstrument configuration of PALSAR and main characteristics of PALSAR are shown in Tables 3.2-7 and 3.2-8respectively.Table 3.2-7 PALSAR Instrument ConfigurationSystem Unit Component Q’tyAntenna Structure Antenna panel (APNL) 4SystemDeployment structure (DPM) 1(ASTS) Storage and opening structure (HDM) 1Transmission/reception module (TR) 80Transmission/reception power sourceTransmission/Reception (PTR)8Antenna Unit ModuleRF3 dividers (DIV-3) 12(ANT) (TRS)Divider 4 dividers (DIV-4) 3(DIV) 8 dividers (DIV-5) 24Control divider (CNT) 4Heater control circuit in antenna unit (AHCE) 4Thermal control system in antenna unit (ATCS) 1PALSARInstrumentation system in antenna unit (AHNS) 1SystemAntenna for REV (REV) 12Signal generating unit (SG)* 1Transmission/ReceptionTransmission unit (TX)* 1(TRX)Reception unit (RX)* 1Signal Processing System control unit 2Electric (SP) Data processing unit 2Circuit Unit Power Divider (PWD) 1(ELU) Antenna deployment driving circuit (ADE) 1Heater control circuit in electric circuit (EHCE) 1Thermal control system in electric circuit (ETCS) 1Instrumentation system in electric circuit (EHNS) 1Electric circuit structure (ELS) 1Instrumentation connecting various units (AEHN) 1* Redundancy construction3-15
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ALOS Data Users HandbookSection 8 D
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ALOS Data Users Handbook8.5 Outline
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ALOS Data Users HandbookALOS Centra
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ALOS Data Users HandbookWith respec
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ALOS Data Users Handbook8.7 AUIG8.7
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ALOS Data Users HandbookFigure 8.7-
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ALOS Data Users Handbook8.7.3 NOTES
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APPENDIXALOS Data Users Handbook
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Appendix 1 Acronyms and Abbreviatio
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ALOS Data Users HandbookAppendix 2
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ALOS Data Users Handbook

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