2010
DOI: 10.1364/oe.18.010334
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Distributed aperture synthesis

Abstract: Distributed aperture synthesis is an exciting technique for recovering high-resolution images from an array of small telescopes. Such a system requires optical field values measured at individual apertures to be phased together so that a single, high-resolution image can be synthesized. This paper describes the application of sharpness metrics to the process of phasing multiple coherent imaging systems into a single high-resolution system. Furthermore, this paper will discuss hardware and present the results o… Show more

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Cited by 27 publications
(7 citation statements)
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“…In practice, digitalholographic detection allows for the estimation of the complex field in the presence of an extended noncooperative object via speckle averaging and image sharpening algorithms or the angular diversity created by using multiple transmitters and receivers. [7][8][9][10][11][12][13][14][15][16][17][18] This versatility allows for long-range imaging, 19 three-dimensional imaging, 20 laser radar, 21 and synthetic-aperture imaging. 22 In general, the applications are abundant.…”
mentioning
confidence: 99%
“…In practice, digitalholographic detection allows for the estimation of the complex field in the presence of an extended noncooperative object via speckle averaging and image sharpening algorithms or the angular diversity created by using multiple transmitters and receivers. [7][8][9][10][11][12][13][14][15][16][17][18] This versatility allows for long-range imaging, 19 three-dimensional imaging, 20 laser radar, 21 and synthetic-aperture imaging. 22 In general, the applications are abundant.…”
mentioning
confidence: 99%
“…While the optimum value for is best determined iteratively, the optimum value for is largely dependent upon the target. For high contrast targets such as our chrome-on-glass Ronchi rulings a  value somewhat less than unity is generally preferred [25]. As has been previously demonstrated, this has the effect of preferentially making dark pixels darker [24][25] [26].…”
Section: Hal Processing Stepsmentioning
confidence: 98%
“…It is known that the signal-to-noise ratio in case of speckle noise is inversely proportional with the square root of the number of realizations averaged [6]. Second, notice that in case of the three-aperture configuration, the resolution improves along the horizontal axis but not the vertical axis, which is obviously due to the arrangement of the sub-apertures [7]. (A more detailed description of the simulations will be given in Section 3.…”
Section: Aperture Synthesismentioning
confidence: 99%