NASA NTRS · 19870007827
The Electronically Steered Thinned Array Radiometer (ESTAR)
Abstract
The concept of a thinned array radiometer is described as an alternate to large filled apertures to achieve high resolution imaging from space. The serious limitations of conventional mechanical scanning systems and the practical problems associated with a multiple receiver pushbroom system that utilizes a large antenna are discussed. The thinned array is developed in terms of aperture synthesis techniques used in radio astronomy. Examples of thinned array configurations are presented, and future directions are discussed.
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Swift, C. T., Ruf, C., Tanner, A., Levine, D.. 1986-08-01. The Electronically Steered Thinned Array Radiometer (ESTAR). https://ntrs.nasa.gov/citations/19870007827
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