SAR > Synthetic Aperture Radar |
(MI_Instrument) uuid: 8293FAD4B8F275F2E040AC8C5AB4576F citation: (CI_Citation) title: Alaska SAR Facility, Scientific SAR User's Guide date: (CI_Date) date: 1993-07 dateType: (CI_DateTypeCode) publication identifier: (MD_Identifier) code: gov.noaa.ngdc.fgdccitation:14448 citedResponsibleParty: (CI_ResponsibleParty) individualName: Olmsted, Coert role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) individualName: ASF > Alaska Satellite Facility role: (CI_RoleCode) publisher citation: (CI_Citation) title: Synthetic Aperture Radar Marine User's Manual date: (CI_Date) date: 2004-09 dateType: (CI_DateTypeCode) publication identifier: (MD_Identifier) code: gov.noaa.ngdc.fgdccitation:62462 citedResponsibleParty: (CI_ResponsibleParty) individualName: Christopher R. Jackson (ed.) role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) individualName: John R. Apel (ed.) role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) individualName: DOC > U.S. Department of Commerce role: (CI_RoleCode) publisher identifier: (MD_Identifier) code: SAR > Synthetic Aperture Radar type: imager description: Instrument Type: imager, Operational Mode: , Collection Type: radar, Other Information: To image terrain, the radar is carried on an aircraft or spacecraft platform moving at uniform speed and altitude. The forward motion provides scanning in the along track direction. The radar beam is directed to the side and down toward the surface. The beam is wide in the vertical direction and so intersects the surface in an oval with the long axis extended in the across track (range) direction. The echo of a short pulse will be received from surface points at increasing range. Thus, digitizing the signal in time provides scanning in the range direction. This direction is determined by the side to which the radar looks. |