synthetic aperture - Definition. Was ist synthetic aperture
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Was (wer) ist synthetic aperture - definition

MIXING SIGNALS FROM MANY TELESCOPES TO PRODUCE IMAGES WITH HIGH ANGULAR RESOLUTION
Aperture Synthesis; Synthetic aperture; Synthesis imaging; Synthetic Aperture; Uv-plane; Interferometric imaging
  • Most aperture synthesis interferometers use the rotation of the Earth to increase the number of baseline orientations included in an observation. In this example with the Earth represented as a grey sphere, the baseline between telescope A and telescope B changes angle with time as viewed from the radio source as the Earth rotates. Taking data at different times thus provides measurements with different telescope separations.

Aperture synthesis         
Aperture synthesis or synthesis imaging is a type of interferometry that mixes signals from a collection of telescopes to produce images having the same angular resolution as an instrument the size of the entire collection. At each separation and orientation, the lobe-pattern of the interferometer produces an output which is one component of the Fourier transform of the spatial distribution of the brightness of the observed object.
Inverse synthetic-aperture radar         
Inverse Synthetic aperture radar; Inverse Synthetic Aperture Radar; Inverse SAR; Inverse synthetic aperture radar
Inverse synthetic-aperture radar (ISAR) is a radar technique using radar imaging to generate a two-dimensional high resolution image of a target. It is analogous to conventional SAR, except that ISAR technology uses the movement of the target rather than the emitter to create the synthetic aperture.
Synthetic Aperture Personality Assessment         
User:Dc023/Synthetic Aperture Personality Assessment
Synthetic Aperture Personality Assessment (SAPA) is a method used for telemetric assessment of individual differences, primarily in the context of online surveys. The SAPA method uses data collected from the administration of large inventories of personality assessment items to large pools of participants, though it differs from traditional data collection methods in that each participant responds to only a small subset of all available items.

Wikipedia

Aperture synthesis

Aperture synthesis or synthesis imaging is a type of interferometry that mixes signals from a collection of telescopes to produce images having the same angular resolution as an instrument the size of the entire collection. At each separation and orientation, the lobe-pattern of the interferometer produces an output which is one component of the Fourier transform of the spatial distribution of the brightness of the observed object. The image (or "map") of the source is produced from these measurements. Astronomical interferometers are commonly used for high-resolution optical, infrared, submillimetre and radio astronomy observations. For example, the Event Horizon Telescope project derived the first image of a black hole using aperture synthesis.

Beispiele aus Textkorpus für synthetic aperture
1. One of the American devices, a mini–synthetic aperture radar, will map ice deposits in the moon’s polar regions.
2. To test this theory, the scientists measured ice velocity with interferometric synthetic–aperture radar data collected by the European Space Agency‘s Earth Remote Sensing Satellites 1 and 2 in 1''6; the Canadian Space Agency‘s Radarsat–1 in 2000 and 2005; and the European Space Agency‘s Envisat Advanced Synthetic Aperture Radar in 2005.
3. Ice and minerals One of the American devices, a mini–synthetic aperture radar, will map ice deposits in the Moon‘s polar regions.
4. Here, the architecture comprises passive and active remote sensing satellite systems such as electro–optical and Synthetic Aperture Radar (SAR) systems and ground systems.
5. He and Irwin gave Saturno high–resolution commercial satellite images of the rain forest, and collected data from NASA‘s Airborne Synthetic Aperture Radar, an instrument flown aboard a high–altitude weather plane that can penetrate clouds, snow and forest canopies.