Journal articles on the topic 'Aperture Synthesis Imaging'

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1

Ward, Jennifer E., William T. Rhodes, and John T. Sheridan. "Lucky imaging and aperture synthesis with low-redundancy apertures." Applied Optics 48, no. 1 (November 19, 2008): A63. http://dx.doi.org/10.1364/ao.48.000a63.

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2

Hysell, D. L., and J. L. Chau. "Optimal aperture synthesis radar imaging." Radio Science 41, no. 2 (March 25, 2006): n/a. http://dx.doi.org/10.1029/2005rs003383.

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3

Burns, Jack O. "Aperture Synthesis imaging from the Moon." International Astronomical Union Colloquium 131 (1991): 420–27. http://dx.doi.org/10.1017/s0252921100013762.

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AbstractFour candidate imaging aperture synthesis concepts are described for possible emplacement on the Moon beginning in the next decade. These include an optical interferometer with 10 μarcsec resolution, a submillimeter array with 6 milliarcsec resolution, a Moon- Earth VLBI experiment, and a very low frequency interferometer in lunar orbit.
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4

Salmon, Neil A. "3-D Radiometric Aperture Synthesis Imaging." IEEE Transactions on Microwave Theory and Techniques 63, no. 11 (November 2015): 3579–87. http://dx.doi.org/10.1109/tmtt.2015.2481413.

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5

Krozer, V., Torsten Löffler, J. Dall, A. Kusk, F. Eichhorn, R. K. Olsson, J. D. Buron, P. U. Jepsen, V. Zhurbenko, and T. Jensen. "Terahertz Imaging Systems With Aperture Synthesis Techniques." IEEE Transactions on Microwave Theory and Techniques 58, no. 7 (July 2010): 2027–39. http://dx.doi.org/10.1109/tmtt.2010.2050246.

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6

Feng, Li, Qingxia Li, and Yufang Li. "Imaging With 3-D Aperture Synthesis Radiometers." IEEE Transactions on Geoscience and Remote Sensing 57, no. 4 (April 2019): 2395–406. http://dx.doi.org/10.1109/tgrs.2018.2872922.

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7

Marston, Timothy M., and Jermaine L. Kennedy. "Volumetric Acoustic Imaging via Circular Multipass Aperture Synthesis." IEEE Journal of Oceanic Engineering 41, no. 4 (October 2016): 852–67. http://dx.doi.org/10.1109/joe.2015.2502664.

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8

Vall-llossera, M., N. Duffo, A. Camps, I. Corbella, F. Torres, and J. Bará. "Reliability analysis in aperture synthesis interferometric radiometers: Application toLband Microwave Imaging Radiometer with Aperture Synthesis instrument." Radio Science 36, no. 1 (January 2001): 107–17. http://dx.doi.org/10.1029/2000rs002514.

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9

Chen, Jianfei, Xiaowei Zhu, Sheng Zhang, and Yuanjiang Li. "Cosine Matching Imaging Method for Rotating Scanning Synthesis Aperture Imaging Radiometer." Mathematical Problems in Engineering 2018 (September 26, 2018): 1–10. http://dx.doi.org/10.1155/2018/7482753.

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Millimeter-wave synthesis aperture imaging radiometer (SAIR) can realize high-resolution observations without requiring the real large aperture antenna. Among the SAIRs, the Rotating Scanning SAIR (RS-SAIR) with linear sparse array is a popular system with low redundancy and high reliability. However, due to the lack of matched imaging methods, its imaging precision is usually low. For improving its imaging precision, a novel Cosine Matching Imaging (CMI) method is proposed in this paper. In CMI method, according to the characteristic of rotating projection imaging, the angle-orientation image is constituted by the 1D projection images measured by RS-SAIR in a series of angles firstly. Then, according to the trajectory of the target in angle-orientation image, the pixel values of the brightness temperature image are extracted by cosine matching method from the angle-orientation image one by one. The simulation results demonstrate that the proposed CMI imaging method has higher reconstruction accuracy for the RS-SAIR.
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10

Quist, C. F., L. Lindegren, and S. Söderhjelm. "Aperture Synthesis of Hipparcos Transit Data." Highlights of Astronomy 11, no. 1 (1998): 549. http://dx.doi.org/10.1017/s1539299600022036.

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The ESA Hipparcos astrometry satellite did not contain an imaging detector (such as a CCD) but used a modulating grid of alternating transparent and opaque bands to modulate the light from a given object. The Fourier coefficients of the modulated detector signal were the basis for the astrometric and photometric processing leading to the Hipparcos Catalogue. These coefficients are included (for a subset of the stars) in the CD-ROM version of the Hipparcos Catalogue as the ‘Hipparcos Transit Data’. In this work, the Transit Data are used in a completely different and novel application: the modulation components from a single scan are considered to be equivalent to the interference fringes from an interferometer oriented along the scan direction and having baselines of 0, ≃ 10 and ≃ 20 cm and a wavelength of 550 nm. Using all the scans collected over the mission lifetime, it is possible to use the complex visibilities (containing bothamplitude and phase information) calculated from the Transit Data to createaperture synthesis images of various type of objects such as visual or orbiting binary systems. More information, including sample images, can be found in: Quist C.F., Lindegren L., Söderhjelm S., 1997, Using HipparcosTransit Data for Aperture Synthesis Imaging, Hipparcos Venice ‘97 Symposium, ESA SP-402 (in press).
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11

Lv, Guomian, Hao Xu, Huajun Feng, Zhihai Xu, Hao Zhou, Qi Li, and Yueting Chen. "A Full-Aperture Image Synthesis Method for the Rotating Rectangular Aperture System Using Fourier Spectrum Restoration." Photonics 8, no. 11 (November 22, 2021): 522. http://dx.doi.org/10.3390/photonics8110522.

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The novel rotating rectangular aperture (RRA) system provides a good solution for space-based, large-aperture, high-resolution imaging tasks. Its imaging quality depends largely on the image synthesis algorithm, and the mainstream multi-frame deblurring approach is sophisticated and time-consuming. In this paper, we propose a novel full-aperture image synthesis algorithm for the RRA system, based on Fourier spectrum restoration. First, a numerical simulation model is established to analyze the RRA system’s characteristics and obtain the point spread functions (PSFs) rapidly. Then, each image is used iteratively to calculate the increment size and update the final restored Fourier spectrum. Both the simulation’s results and the practical experiment’s results show that our algorithm performs well in terms of objective evaluation and time consumption.
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12

Harvey, A. R., and R. Appleby. "Passive mm-wave imaging from UAVs using aperture synthesis." Aeronautical Journal 107, no. 1069 (February 2003): 87–97. http://dx.doi.org/10.1017/s0001924000013762.

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Abstract Passive imaging using mm-waves offers very significant advantages in scientific and military surveillance. However, the relatively long wavelengths mean that for the resolutions that are typically sought, the input aperture of the imager needs to be quite large; typically in excess of one metre. Deployment of conventional dish antennae of these dimensions on small aircraft is highly problematic. The use of snapshot synthetic aperture interferometric radiometry (SAIR) offers an attractive route to integrating a two-dimensional antenna array into the structure of an aircraft so that the transverse effective dimensions of the antenna can be almost as large as the aircraft. We report here a study into the feasibility of deployment of a SAIR on unmanned airborne vehicles and the achievable performance parameters. Critical considerations are the achievement of acceptable sensitivity and angular resolution from a SAIR that does not require excessive complexity. It is shown that traditional approaches based on fully sampling the spatial frequencies in the scene are unable to simultaneously meet all of these criteria, but that a SAIR based on thinned sampling of the spatial frequencies shows promise.
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13

Daki, O. A., Nguen Van Huu, V. V. Pavlikov, A. D. Sobkolov, and O. M. Tymoschuk. "IMAGING BY AEROSPACE RADAR SYSTEMS WITH ACTIVE APERTURE SYNTHESIS." Telecommunications and Radio Engineering 78, no. 14 (2019): 1233–47. http://dx.doi.org/10.1615/telecomradeng.v78.i14.20.

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14

Harvey, A. R., and R. Appleby. "Passive mm-wave imaging from UAVs using aperture synthesis." Aeronautical Journal 107, no. 1068 (February 2003): 87–98. http://dx.doi.org/10.1017/s0001924000018376.

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AbstractPassive imaging using mm-waves offers very significant advantages in scientific and military surveillance. However, the relatively long wavelengths mean that for the resolutions that are typically sought, the input aperture of the imager needs to be quite large; typically in excess of one metre. Deployment of conventional dish antennae of these dimensions on small aircraft is highly problematic. The use of snapshot synthetic aperture interferometric radiometry (SAIR) offers an attractive route to integrating a two-dimensional antenna array into the structure of an aircraft so that the transverse effective dimensions of the antenna can be almost as large as the aircraft. We report here a study into the feasibility of deployment of a SAIR on unmanned airborne vehicles and the achievable performance parameters. Critical considerations are the achievement of acceptable sensitivity and angular resolution from a SAIR that does not require excessive complexity. It is shown that traditional approaches based on fully sampling the spatial frequencies in the scene are unable to simultaneously meet all of these criteria, but that a SAIR based on thinned sampling of the spatial frequencies shows promise.
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15

Onello, Joseph S., J. A. Phillips, P. Benaglia, W. M. Goss, and Yervant Terzian. "Aperture synthesis imaging of partially ionized gas in W48." Astrophysical Journal 426 (May 1994): 249. http://dx.doi.org/10.1086/174059.

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16

Jiang, Yuesong, Jingjing Zhang, Yuntao He, Haiyang Wang, Jing Wang, and Jun Zhang. "Optical aperture synthesis imaging with fractional Fourier-domain filtering." Journal of the Optical Society of America A 29, no. 3 (February 16, 2012): 295. http://dx.doi.org/10.1364/josaa.29.000295.

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17

Buscher, David F. "Field of view for near-field aperture synthesis imaging." Optics Letters 40, no. 14 (July 13, 2015): 3364. http://dx.doi.org/10.1364/ol.40.003364.

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18

Ji, Chaunyi, Saleem A. Kassam, and Ralph T. Hoctor. "Aperture synthesis for imaging systems using rectangular boundary arrays." Journal of the Acoustical Society of America 89, no. 2 (February 1991): 799–810. http://dx.doi.org/10.1121/1.1894640.

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19

Bedding, T. R., and J. G. Robertson. "Optical Aperture Synthesis with the Anglo-Australian Telescope." Publications of the Astronomical Society of Australia 8, no. 1 (1989): 78–80. http://dx.doi.org/10.1017/s1323358000022967.

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AbstractWe propose to construct an optical interferometer to produce high resolution images by aperture synthesis. The interferometer, known as the Masked Aperture Pupil-Plane Interference Telescope (MAPPIT), will be mounted at the coudé focus of the Anglo-Australian Telescope. It will use a non-redundant aperture mask, together with closure phase methods developed for radio VLBI, to overcome the wavefront distortions which are introduced by atmospheric turbulence. By using the techniques of pupil-plane interferometry and wavelength dispersion, it is hoped that MAPPIT will have more sensitivity than many other interferometric imaging projects.
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20

Nakajima, T., S. R. Kulkarni, P. W. Gorham, A. M. Ghez, G. Neugebauer, J. B. Oke, T. A. Prince, and A. C. S. Readhead. "Diffraction-limited imaging. II - Optical aperture-synthesis imaging of two binary stars." Astronomical Journal 97 (May 1989): 1510. http://dx.doi.org/10.1086/115090.

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21

Volosyuk, Valeriy, Simeon Zhyla, Volodimir Pavlikov, Eduard Tserne, Anton Sobkolov, Olexandr Shmatko, and Konstantin Belousov. "Mathematical description of imaging processes in ultra-wideband active aperture synthesis systems using stochastic sounding signals." RADIOELECTRONIC AND COMPUTER SYSTEMS, no. 4 (November 29, 2021): 166–82. http://dx.doi.org/10.32620/reks.2021.4.14.

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Mathematical models of the fields of stochastic ultra-wideband signals that are necessary for solving problems of aperture synthesis of images using active radar methods are presented. The expediency of using V-transformations in these problems has been substantiated, the effectiveness of which has already been proven for the mathematical description of ultra-wideband spatio-temporal fields in the methods of passive and active radar, as well as remote sensing, that are used to solve problems of radio astronomy, medicine, navigation. Using modern methods of mathematical analysis and the theory of ultra-wideband systems, the physical essence of radio images obtained with the help of algorithms for coherent and incoherent signal processing is investigated. According to these algorithms, it is proposed to divide images into coherent and incoherent. Coherent images include those in which its amplitude and phase are recorded separately. In the case of an incoherent image, only its amplitude (power or related characteristic) is recorded. To describe of the obtained radio image structure, new concepts of the spectral density of the complex spatial coherence function (SDCSCF) and the spectral density of the spatial autocorrelation function of the amplitude-phase distribution (SDFSAF APD) are introduced. Application-use of functions is expedient and fundamentally necessary for solving problems of aperture synthesis using stochastic ultra-wideband signals. A mathematical description of the structures obtained by aperture synthesis of radio images is given. Here, studies are conducted for the general case of using a continuous (idealized) aperture, and for using an antenna system with spatially separated receiving elements. Simulation of the heuristic synthesized algorithm for constructing incoherent radio images is conducted. The possibility of using antenna arrays and synthesized aperture synthesis algorithms for solving problems of image formation in a survey located directly under the aircraft (at sounding angles close to vertical) are substantiated.
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22

Liebgott, H., A. Basarab, P. Gueth, C. Cachard, and P. Delachartre. "Lateral RF image synthesis using a synthetic aperture imaging technique." IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 55, no. 9 (September 2008): 2097–103. http://dx.doi.org/10.1109/tuffc.902.

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23

Hysell, D. L., P. Sharma, M. Urco, and M. A. Milla. "Aperture‐Synthesis Radar Imaging With Compressive Sensing for Ionospheric Research." Radio Science 54, no. 6 (June 2019): 503–16. http://dx.doi.org/10.1029/2019rs006805.

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24

Meimon, Serge, Guy Le Besnerais, and Laurent M. Mugnier. "Convex approximation to the likelihood criterion for aperture synthesis imaging." Journal of the Optical Society of America A 22, no. 11 (November 1, 2005): 2348. http://dx.doi.org/10.1364/josaa.22.002348.

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25

Wright, M. C. H. "Atmospheric Phase Noise and Aperture Synthesis Imaging at Millimeter Wavelengths." Publications of the Astronomical Society of the Pacific 108 (June 1996): 520. http://dx.doi.org/10.1086/133757.

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26

Dou, Haofeng, Liang Lang, Wei Guo, Liangqi Gui, Qingxia Li, Liangbing Chen, Xiaojun Bi, et al. "Initial Results of Microwave Radiometric Imaging With Mirrored Aperture Synthesis." IEEE Transactions on Geoscience and Remote Sensing 57, no. 10 (October 2019): 8105–17. http://dx.doi.org/10.1109/tgrs.2019.2918308.

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27

Wittkowski, M., K. H. Hofmann, S. Höfner, J. B. Le Bouquin, W. Nowotny, C. Paladini, J. Young, et al. "Aperture synthesis imaging of the carbon AGB star R Sculptoris." Astronomy & Astrophysics 601 (April 19, 2017): A3. http://dx.doi.org/10.1051/0004-6361/201630214.

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28

Wu, Zhenhua, Lei Zhang, Hongwei Liu, and Na Kou. "Enhancing Microwave Metamaterial Aperture Radar Imaging Performance With Rotation Synthesis." IEEE Sensors Journal 16, no. 22 (November 2016): 8035–43. http://dx.doi.org/10.1109/jsen.2016.2609200.

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29

Zhou, Fang, Jun Yang, Lu Jia, Xingming Yang, and Mengdao Xing. "Ultra-High Resolution Imaging Method for Distributed Small Satellite Spotlight MIMO-SAR Based on Sub-Aperture Image Fusion." Sensors 21, no. 5 (February 25, 2021): 1609. http://dx.doi.org/10.3390/s21051609.

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Small satellite synthetic aperture radar (SAR) has become a new development direction of spaceborne SAR due to its advantages of flexible launch, short development cycle, and low cost. However, there are fewer researches on distributed small satellite multiple input multiple output (MIMO) SAR. This paper proposes an ultra-high resolution imaging method for the distributed small satellite spotlight MIMO-SAR, which applies the sub-aperture division technique and the sub-aperture image coherent fusion algorithm to MIMO-SAR. After deblurring the sub-aperture signal, the large bandwidth signal is obtained by using an improved time domain bandwidth synthesis (TBS) method, and then the ultra-high resolution image is obtained by using a sub-aperture image coherent fusion algorithm. Simulation results validate the feasibility and effectiveness of the proposed approach.
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30

Pavlikov, V. V., Kiem Nguyen Van,, and O. M. Tymoshchuk. "NEW METHOD FOR THE SPATIO-SPECTRAL SENSITIVITY DOMAIN FILLING AND RADIOMETRIC IMAGING WITH HIGH RESOLUTION IN APERTURE SYNTHESIS SYSTEMS." EURASIAN JOURNAL OF MATHEMATICAL AND COMPUTER APPLICATIONS 4, no. 4 (2016): 44–53. http://dx.doi.org/10.32523/2306-6172-2016-4-4-44-53.

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31

Jiao, Zekun, Chibiao Ding, Longyong Chen, and Fubo Zhang. "Three-Dimensional Imaging Method for Array ISAR Based on Sparse Bayesian Inference." Sensors 18, no. 10 (October 20, 2018): 3563. http://dx.doi.org/10.3390/s18103563.

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The problem of synthesis scatterers in inverse synthetic aperture radar (ISAR) make it difficult to realize high-resolution three-dimensional (3D) imaging. Radar array provides an available solution to this problem, but the resolution is restricted by limited aperture size and number of antennas, leading to deterioration of the 3D imaging performance. To solve these problems, we propose a novel 3D imaging method with an array ISAR system based on sparse Bayesian inference. First, the 3D imaging model using a sparse linear array is introduced. Then the elastic net estimation and Bayesian information criterion are introduced to fulfill model order selection automatically. Finally, the sparse Bayesian inference is adopted to realize super-resolution imaging and to get the 3D image of target of interest. The proposed method is used to process real radar data of a Ku band array ISAR system. The results show that the proposed method can effectively solve the problem of synthesis scatterers and realize super-resolution 3D imaging, which verify the practicality of our proposed method.
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32

Lukin, Konstantin A., Volodymyr V. Kudriashov, Pavlo L. Vyplavin, Volodymyr P. Palamarchuk, and Sergii K. Lukin. "Coherent radiometric imaging using antennas with beam synthesizing." International Journal of Microwave and Wireless Technologies 7, no. 3-4 (June 2015): 453–58. http://dx.doi.org/10.1017/s1759078715000550.

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The paper is devoted to coherent radiometric imaging systems. The investigated systems may be considered as a version of bistatic noise waveform passive radar with synthetic aperture having external reference. Reference signal in this imaging system is received from the investigated emitting object using auxiliary receiver. Although a number of theoretical studies on aperture synthesis imaging algorithms exist, relatively few of them deal with experimental investigation. In particular, no information concerning range-azimuth coherent radiometric imaging has been found. In this paper, an experimental investigation of possibility to generate coherent radiometric images using two antennas with beam synthesizing is carried out. Indoor radiometric imaging has been validated using absorbers as the emitting objects. These experiments enabled to estimate range resolution of the radiometric system achieved by focusing antennas with beam synthesizing for range span limited by means about bistatic baseline.
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33

Bouyeron, L., L. Delage, R. Baudoin, J. T. Gomes, L. Grossard, and F. Reynaud. "Co-phasing of a diluted aperture synthesis instrument for direct imaging." Astronomy & Astrophysics 567 (July 2014): A87. http://dx.doi.org/10.1051/0004-6361/201321486.

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34

Hamidouche, M. "APERTURE SYNTHESIS IMAGING OF V892 Tau AND PV Cep: DISK EVOLUTION." Astrophysical Journal 722, no. 1 (September 17, 2010): 204–11. http://dx.doi.org/10.1088/0004-637x/722/1/204.

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35

Lucotte, B. M., B. Grafulla-González, and A. R. Harvey. "Array rotation aperture synthesis for short-range imaging at millimeter wavelengths." Radio Science 44, no. 1 (February 2009): n/a. http://dx.doi.org/10.1029/2008rs003863.

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36

Nakajima, Tadashi. "Sensitivity of a Ground‐based Infrared Interferometer for Aperture Synthesis Imaging." Publications of the Astronomical Society of the Pacific 113, no. 788 (October 2001): 1289–99. http://dx.doi.org/10.1086/323285.

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37

Byard, Kevin. "Synthesis of binary arrays with perfect correlation properties — coded aperture imaging." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 336, no. 1-2 (November 1993): 262–68. http://dx.doi.org/10.1016/0168-9002(93)91107-x.

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38

Orchiston, Wayne, Kenneth I. Kellermann, Rodney D. Davies, Suzanne V. Débarbat, Masaki Morimoto, Slava Slysh, Govind Swarup, Hugo van Woerden, Jasper V. Wall, and Richard Wielebinski. "DIVISION X WORKING GROUP on HISTORIC RADIO ASTRONOMY." Proceedings of the International Astronomical Union 6, T27B (May 14, 2010): 246–47. http://dx.doi.org/10.1017/s1743921310005272.

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During the Rio General Assembly we held the following meetings of the Working Group: a Business Meeting, a Science Meeting on “The Development of Aperture Synthesis Imaging in Radio Astronomy”, and a Science Meeting on “Recent Research”.
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39

Цзюнь, Чэн, Cheng Jun, Йан Йихуа, Yan Yihua, Чжao Дун, Zhao Dong, Сюй Лун, and Xu Long. "Scale sequentially CLEAN for Mingantu Spectral Radioheliograph." Solar-Terrestrial Physics 5, no. 2 (June 28, 2019): 50–57. http://dx.doi.org/10.12737/stp-52201908.

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MingantU SpEctral Radioheliograph (MUSER) is a solar-dedicated radio heliograph, adopting aperture synthesis technique to image the Sun in the frequency range of 0.4 GHz to 15 GHz. MUSER has extremely high spatial resolution, temporal resolution, and frequency resolution beyond those of contemporary devices of the same category. For aperture synthesis, the number of antennas is limited, so sparse sampling of Fourier components is actually obtained for solar observation, which corresponds to the situation that a clean image is convolved by a dirty beam with strong sidelobe in a spatial domain. Thus, the deconvolution, such as CLEAN, is generally required for imaging the aperture synthesis to remove artifacts caused by the convolving dirty beam. The traditional Högbom CLEAN is based on the assumption that an observed object is only composed of point sources. This assumption does not hold for solar observation, where the solar disk is an extended source containing complex structures and diffuse features. In this paper, we make the first attempt to employ scale sequentially CLEAN for MUSER imaging, including Multi-Resolution CLEAN and Wavelet CLEAN. The experimental results demonstrate that the scale sequentially CLEAN, especially wavelet CLEAN, is superior to the traditional CLEAN algorithm in smaller number of iterations and improved image quality. We provide optimized wavelet parameters to further improve the performance of wavelet CLEAN.
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40

Цзюнь, Чэн, Cheng Jun, Йан Йихуа, Yan Yihua, Чжao Дун, Zhao Dong, Сюй Лун, and Xu Long. "Scale sequentially CLEAN for Mingantu Spectral Radioheliograph." Solnechno-Zemnaya Fizika 5, no. 2 (June 28, 2019): 55–62. http://dx.doi.org/10.12737/szf-52201908.

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MingantU SpEctral Radioheliograph (MUSER) is a solar-dedicated radio heliograph, adopting aperture synthesis technique to image the Sun in the frequency range of 0.4 GHz to 15 GHz. MUSER has extremely high spatial resolution, temporal resolution, and frequency resolution beyond those of contemporary devices of the same category. For aperture synthesis, the number of antennas is limited, so sparse sampling of Fourier components is actually obtained for solar observation, which corresponds to the situation that a clean image is convolved by a dirty beam with strong sidelobe in a spatial domain. Thus, the deconvolution, such as CLEAN, is generally required for imaging the aperture synthesis to remove artifacts caused by the convolving dirty beam. The traditional Högbom CLEAN is based on the assumption that an observed object is only composed of point sources. This assumption does not hold for solar observation, where the solar disk is an extended source containing complex structures and diffuse features. In this paper, we make the first attempt to employ scale sequentially CLEAN for MUSER imaging, including Multi-Resolution CLEAN and Wavelet CLEAN. The experimental results demonstrate that the scale sequentially CLEAN, especially wavelet CLEAN, is superior to the traditional CLEAN algorithm in smaller number of iterations and improved image quality. We provide optimized wavelet parameters to further improve the performance of wavelet CLEAN.
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41

Camps, A., M. Vall-llossera, N. Duffo, M. Zapata, I. Corbella, F. Torres, and V. Barrena. "Sun effects in 2-D aperture synthesis radiometry imaging and their cancelation." IEEE Transactions on Geoscience and Remote Sensing 42, no. 6 (June 2004): 1161–67. http://dx.doi.org/10.1109/tgrs.2004.826561.

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42

Jun Li, Fei Hu, Feng He, Liang Wu, Xiaohui Peng, and Dong Zhu. "An Imaging Method With Array Factor Synthesis in Synthetic Aperture Interferometric Radiometers." IEEE Geoscience and Remote Sensing Letters 13, no. 1 (January 2016): 87–91. http://dx.doi.org/10.1109/lgrs.2015.2497799.

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43

Liu, Li, Yuntao He, Jianguo Zhang, Huayu Jia, and Jun Ma. "Optimum linear array for aperture synthesis imaging based on redundant spacing calibration." Optical Engineering 53, no. 5 (May 9, 2014): 053109. http://dx.doi.org/10.1117/1.oe.53.5.053109.

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44

Wenger, S., M. Magnor, Y. Pihlström, S. Bhatnagar, and U. Rau. "SparseRI: A Compressed Sensing Framework for Aperture Synthesis Imaging in Radio Astronomy." Publications of the Astronomical Society of the Pacific 122, no. 897 (November 2010): 1367–74. http://dx.doi.org/10.1086/657252.

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45

Anterrieu, Eric, Francois Cabot, Ali Khazaal, and Yann H. Kerr. "On the Simulation of Complex Visibilities in Imaging Radiometry by Aperture Synthesis." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 10, no. 11 (November 2017): 4666–76. http://dx.doi.org/10.1109/jstars.2017.2686449.

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46

Chen Bo, 陈波, 孙天齐 Sun Tianqi, 刘爱新 Liu Aixin, and 杨旭 Yang Xu. "Correction of Rotation and Magnification Errors in Distributed Aperture Synthesis Imaging System." Laser & Optoelectronics Progress 55, no. 1 (2018): 011102. http://dx.doi.org/10.3788/lop55.011102.

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47

Ishiguro, M., K. I. Morita, and M. Ishiguro. "Application of an estimator-free information criterion (WIC) to aperture synthesis imaging." International Astronomical Union Colloquium 131 (1991): 243–48. http://dx.doi.org/10.1017/s0252921100013403.

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AbstractA statistical criterion for stopping CLEAN procedure is proposed. The criterion is called WIC and an estimator of Kullback-Leibler information quantity which is a measure of the goodness of statistical models. A numerical example is given.
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48

Maness, H. L., M. P. Fitzgerald, R. Paladini, P. Kalas, G. Duchene, and James R. Graham. "CARMA Millimeter-Wave Aperture Synthesis Imaging of the HD 32297 Debris Disk." Astrophysical Journal 686, no. 1 (September 11, 2008): L25—L28. http://dx.doi.org/10.1086/592783.

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49

Hofmann, K. H., A. Bensberg, D. Schertl, G. Weigelt, S. Wolf, A. Meilland, F. Millour, et al. "VLTI-MATISSE L- and N-band aperture-synthesis imaging of the unclassified B[e] star FS Canis Majoris." Astronomy & Astrophysics 658 (February 2022): A81. http://dx.doi.org/10.1051/0004-6361/202141601.

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Context. FS Canis Majoris (FS CMa, HD 45677) is an unclassified B[e] star surrounded by an inclined dust disk. The evolutionary stage of FS CMa is still debated. Perpendicular to the circumstellar disk, a bipolar outflow was detected. Infrared aperture-synthesis imaging provides us with a unique opportunity to study the disk structure. Aims. Our aim is to study the intensity distribution of the disk of FS CMa in the mid-infrared L and N bands. Methods. We performed aperture-synthesis imaging of FS CMa with the MATISSE instrument (Multi AperTure mid-Infrared SpectroScopic Experiment) in the low spectral resolution mode to obtain images in the L and N bands. We computed radiative transfer models that reproduce the L- and N-band intensity distributions of the resolved disks. Results. We present L- and N-band aperture-synthesis images of FS CMa reconstructed in the wavelength bands of 3.4–3.8 and 8.6–9.0 μm. In the L-band image, the inner rim region of an inclined circumstellar disk and the central object can be seen with a spatial resolution of 2.7 milliarcsec (mas). An inner disk cavity with an angular diameter of ~6 × 12 mas is resolved. The L-band disk consists of a bright northwestern (NW) disk region and a much fainter southeastern (SE) region. The images suggest that we are looking at the bright inner wall of the NW disk rim, which is on the far side of the disk. In the N band, only the bright NW disk region is seen. In addition to deriving the inclination and the inner disk radius, fitting the reconstructed brightness distributions via radiative transfer modelling allows one to constrain the innermost disk structure, in particular the shape of theinner disk rim.
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Robertson, J. G., T. R. Bedding, R. G. Marson, P. R. Gillingham, R. H. Frater, J. D. O’Sullivan, and R. P. Norris. "High-resolution Imaging by Optical Aperture Synthesis: First Results from the MAPPIT Project." Publications of the Astronomical Society of Australia 9, no. 1 (1991): 162–63. http://dx.doi.org/10.1017/s1323358000025418.

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AbstractWe have successfully demonstrated optical aperture synthesis at the 4-m Anglo-Australian Telescope. By using a multi-hole mask over the (re-imaged) primary mirror and recording the resulting fringe patterns with high time resolution, diffraction-limited images of sufficiently bright objects can be reconstructed. The data processing uses closure phases to overcome the effects of atmospheric turbulence. We show an image of the double star η Oph, with component separation 0″.45.
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