Assertion: synthetic aperture radar | /r/HasProperty | sar
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text: Synthetic Aperture Radar (SAR) refers to a technique used to synthesize a very long antenna by combining signals (echoes) received by the radar as it moves along its flight track.
text: NASA/JPL's radar program began with the SEASAT synthetic aperture radar (SAR) in 1978.
text: Synthetic-aperture radar (SAR), was invented in the early 1950s at Goodyear Aircraft Corporation.
text: Current radar imaging techniques rely mainly on synthetic aperture radar (SAR) and inverse synthetic aperture radar (ISAR) imaging.
text: Synthetic aperture radar (SAR) [ edit ]
text: A number of earth-observing radar satellites, such as RADARSAT, have employed synthetic aperture radar (SAR) to obtain terrain and land-cover information about the Earth.
text: a synthetic aperture radar (SAR) for high-resolution imaging
text: Synthetic Aperture Radar (SAR) provides such a capability.
text: Synthetic Aperture Radar (SAR) complements photographic and other optical imaging capabilities because it is not limited by the time of day or atmospheric conditions and because of the unique responses of terrain and cultural targets to radar frequencies.
text: A detailed description of the theory of operation of Synthetic Aperture Radar (SAR) is complex and beyond the scope of this site.
text: (Click here for a more detailed explanation of Synthetic Aperture Radar (SAR).)
text: Consider an airborne Synthetic Aperture Radar (SAR) imaging perpendicular to the aircraft velocity as shown in the figure below.
text: Typically, Synthetic Aperture Radar (SAR) produces a two-dimensional (2-D) image.
text: Range measurement and resolution are achieved in Synthetic Aperture Radar (SAR) in the same manner as most other radars: range is determined by measuring the time from transmission of a pulse to receiving the echo from a target and, in the simplest Synthetic Aperture Radar (SAR), range resolution is determined by the transmitted pulse width, i.e. narrow pulses yield fine range resolution.
text: Since Synthetic Aperture Radar (SAR) is much lower in frequency than optical systems, even moderate Synthetic Aperture Radar (SAR) resolutions require an antenna too large to be practically carried by an airborne platform: antenna lengths several hundred meters long are often required.
text: Since Synthetic Aperture Radar (SAR) is much lower in frequency than optical systems, even moderate Synthetic Aperture Radar (SAR) resolutions require an antenna too large to be practically carried by an airborne platform: antenna lengths several hundred meters long are often required.
text: Through-the-wall radars can be made with Ultra Wideband impulse radar, micro-Doppler radar, and synthetic aperture radar (SAR).
text: It carries a Synthetic Aperture Radar (SAR), a powerful microwave instrument that can transmit and receive signals to "see" through clouds and darkness, obtaining detailed images of the Earth.
text: RADARSAT-1 carries an advanced Synthetic Aperture Radar (SAR) operating at 5.3 GHz (C-band).
text: This geodetic method uses two or more synthetic aperture radar (SAR) images to generate maps of surface deformation or digital elevation, using differences in the phase of the waves returning to the satellite or aircraft.
text: In the air-to-surface mode the N010 radar offers a mapping capability using either Synthetic aperture radar (SAR), real beam or doppler beam narrowing modes with a resolution of up to 3x3m with zooming and image freezing functions.
text: Through-the-wall radars can be made with Ultra Wideband impulse radar, micro-Doppler radar, and synthetic aperture radar (SAR).
text: Synthetic aperture radar (SAR) allow for an angular resolution beyond real beamwidth by moving the aperture over the target, and adding the echoes coherently.
text: Synthetic aperture radar (SAR) allow for an angular resolution beyond real beamwidth by moving the aperture over the target, and adding the echoes coherently.
text: Synthetic Aperture Radar (SAR) mode:
text: Also see: Synthetic Aperture Radar (SAR) and InSAR Guides.
text: A synthetic aperture radar (SAR) is an active sensor that first transmits microwave signals and then receives back the signals that are returned, or backscattered , from the Earth’s surface.
text: Synthetic-aperture radar (SAR) is a form of radar which moves a real aperture or antenna through a series of positions along the objects to provide distinctive long-term coherent-signal variations.
text: Synthetic-aperture radar (SAR) is a form of radar that is used to create two-dimensional images or three-dimensional reconstructions of objects, such as landscapes.
text: Instead, this page is intended to give the reader an intuitive feel for how Synthetic Aperture Radar (SAR) works.
text: Synthetic aperture radar (SAR) is a form of radar in which sophisticated processing of radar data is used to produce a very narrow effective beam.
text: Synthetic aperture radar (SAR) is employed on an aircraft or satellite and generally its antenna beam is oriented perpendicular to its direction of travel.