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Radio Interferometry is an essential method for astronomical observations. Self-calibration techniques have increased the quality of the radio astronomical observations (and hence the science) by orders of magnitude. Recently, there is a…

Astrophysics · Physics 2008-11-03 Sarod Yatawatta , Saleem Zaroubi , Ger de Bruyn , Leon Koopmans , Jan Noordam

Tests of general relativity (GR) are still in their infancy on cosmological scales, but forthcoming experiments promise to greatly improve their precision over a wide range of distance scales and redshifts. One such experiment, the Square…

Cosmology and Nongalactic Astrophysics · Physics 2016-01-25 Philip Bull

Radio emission from stars can be used, e.g., to study ionized winds or stellar flares. The radio emission is faint and studies have been limited to few objects. The Square Kilometer Array (SKA) will bring a survey ability to the topic of…

Solar and Stellar Astrophysics · Physics 2021-04-27 Bin Yu , Albert Zijlstra , Biwei Jiang

The angular resolution of the proposed Square Kilometre Array, SKA, must be extended towards the milliarcsecond scale if it is to resolve the distant starburst galaxies that are likely to dominate the radio source counts at micro and…

Astrophysics · Physics 2007-05-23 M. A. Garrett

In semiconductor manufacturing, testing costs remain significantly high, especially during wafer and FPGA testing. To reduce the number of required tests while maintaining predictive accuracy, this study investigates three baseline sampling…

Machine Learning · Computer Science 2025-06-05 Wang WeiQuan , Riaz-ul-Haque Mian

Large radio telescopes in the 21st century such as the Low-Frequency Array (LOFAR) or the Murchison Widefield Array (MWA) make use of phased aperture arrays of antennas to achieve superb survey speeds. The Square Kilometer Array low…

Instrumentation and Methods for Astrophysics · Physics 2017-12-06 Ha Bui-Van , Christophe Craeye , Eloy de Lera Acedo

Examining and interpreting of a large number of wireless endoscopic images from the gastrointestinal tract is a tiresome task for physicians. A practical solution is to automatically construct a two dimensional representation of the…

Signal Processing · Electrical Eng. & Systems 2018-03-16 Rahman Attar , Xiang Xie , Zhihua Wang , Shigang Yue

Efficient and low-complexity beamforming design is an important element of satellite communication systems with mobile receivers equipped with phased arrays. In this work, we apply the simultaneous perturbation stochastic approximation…

Signal Processing · Electrical Eng. & Systems 2021-04-20 Zheng Chen , Håkan Johansson

We present an update on the NZ-wide advances in the field of Radio Astronomy and Radio Engineering with a particular focus on contributions, not thus reported elsewhere, which hope to either directly or indirectly contribute to New…

Instrumentation and Methods for Astrophysics · Physics 2010-02-08 M. Johnston-Hollitt , V. Kitaev , C. P. Hollitt , N. Jones , T. C. Motleno

Imaging below the diffraction limit is always a public interest because of the restricted resolution of conventional imaging systems. To beat the limit, evanescent harmonics decaying in space must participate in the imaging process. Here,…

Optics · Physics 2019-10-02 Tie-Jun Huang , Li-Zheng Yin , Ya Shuang , Jiang-Yu Liu , Yunhua Tan , Pu-Kun Liu

The next generation of very long baseline interferometry (VLBI) is stepping into the era of microarcsecond ($\mu$as) astronomy, and pushing astronomy, especially astrometry, to new heights. VLBI with the Square Kilometre Array (SKA),…

Astrophysics of Galaxies · Physics 2024-04-24 Yingjie Li , Ye Xu , Jingjing Li , Shuaibo Bian , Zehao Lin , Chaojie Hao , Dejian Liu

The high sensitivity of the new generation of radio telescopes such as the Square Kilometre Array (SKA) will allow cosmological weak lensing measurements at radio wavelengths that are competitive with optical surveys. We present an…

Instrumentation and Methods for Astrophysics · Physics 2016-09-23 Marzia Rivi , Lance Miller , Sphesihle Makhathini , Filipe Batoni Abdalla

High-speed image acquisition in light microscopy is essential for a wide range of applications, including observing dynamic biological processes and enabling high-throughput sample analysis. However, traditional imaging speeds are often…

The Square Kilometre Array Observatory (SKAO) will explore the radio sky to new depths in order to conduct transformational science. SKAO data products made available to astronomers will be correspondingly large and complex, requiring the…

The ability of the future low frequency component of the Square Kilometre Array radio telescope (SKA-Low) to produce tomographic images of the redshifted 21-cm signal will enable direct studies of the evolution of the sizes and shapes of…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-06 Sambit K. Giri , Garrelt Mellema , Raghunath Ghara

The Square Kilometer Array (SKA) has the potential to produce galaxy redshift surveys which will be competitive with other state of the art cosmological experiments in the next decade. In this chapter we summarise what capabilities the…

Detection of the redshifted 21-cm signal of neutral hydrogen from the Cosmic Dawn and the Epoch of Reionization is one of the final frontiers of modern observational cosmology. The inherently faint signal makes it susceptible to…

Instrumentation and Methods for Astrophysics · Physics 2023-03-29 Aishrila Mazumder , Abhirup Datta , Mayuri Sathyanarayana Rao , Arnab Chakraborty , Saurabh Singh , Anshuman Tripathi , Madhurima Choudhury

The future of radio astronomy will require instruments with large collecting areas for higher sensitivity, wide fields of view for faster survey speeds, and efficient computing and data rates relative to current capabilities. We describe…

Instrumentation and Methods for Astrophysics · Physics 2019-05-08 James Kent , Jayce Dowell , Adam Beardsley , Nithyanandan Thyagarjan , Greg Taylor , Judd Bowman

The Square Kilometre Array (SKA) is called to revolutionise essentially all areas of Astrophysics. With a collecting area of about a square kilometre, the SKA will be a transformational instrument, and its scientific potential will go…

Instrumentation and Methods for Astrophysics · Physics 2015-06-19 J. A. Acosta-Pulido , I. Agudo , A. Alberdi , J. Alcolea , E. J. Alfaro , A. Alonso-Herrero , G. Anglada , P. Arnalte-Mur , Y. Ascasibar , B. Ascaso , R. Azulay , R. Bachiller , A. Baez-Rubio , E. Battaner , J. Blasco , C. B. Brook , V. Bujarrabal , G. Busquet , M. D. Caballero-Garcia , C. Carrasco-Gonzalez , J. Casares , A. J. Castro-Tirado , L. Colina , F. Colomer , I. de Gregorio-Monsalvo , A. del Olmo , J. -F. Desmurs , J. M. Diego , R. Dominguez-Tenreiro , R. Estalella , A. Fernandez-Soto , E. Florido , J. Font , J. A. Font , A. Fuente , R. Garcia-Benito , S. Garcia-Burillo , B. Garcia-Lorenzo , A. Gil de Paz , J. M. Girart , J. R. Goicoechea , J. F. Gomez , M. Gonzalez-Garcia , O. Gonzalez-Martin , J. I. Gonzalez-Serrano , J. Gorgas , J. Gorosabel , A. Guijarro , J. C. Guirado , L. Hernandez-Garcia , C. Hernandez-Monteagudo , D. Herranz , R. Herrero-Illana , Y. -D. Hu , N. Huelamo , M. Huertas-Company , J. Iglesias-Paramo , S. Jeong , I. Jimenez-Serra , J. H. Knapen , R. A. Lineros , U. Lisenfeld , J. M. Marcaide , I. Marquez , J. Marti , J. M. Marti , I. Marti-Vidal , E. Martinez-Gonzalez , J. Martin-Pintado , J. Masegosa , J. M. Mayen-Gijon , M. Mezcua , S. Migliari , P. Mimica , J. Moldon , O. Morata , I. Negueruela , S. R. Oates , M. Osorio , A. Palau , J. M. Paredes , J. Perea , P. G. Perez-Gonzalez , E. Perez-Montero , M. A. Perez-Torres , M. Perucho , S. Planelles , J. A. Pons , A. Prieto , V. Quilis , P. Ramirez-Moreta , C. Ramos Almeida , N. Rea , M. Ribo , M. J. Rioja , J. M. Rodriguez Espinosa , E. Ros , J. A. Rubiño-Martin , B. Ruiz-Granados , J. Sabater , S. Sanchez , C. Sanchez-Contreras , A. Sanchez-Monge , R. Sanchez-Ramirez , A. M. Sintes , J. M. Solanes , C. F. Sopuerta , M. Tafalla , J. C. Tello , B. Tercero , M. C. Toribio , J. M. Torrelles , M. A. P. Torres , A. Usero , L. Verdes-Montenegro , A. Vidal-Garcia , P. Vielva , J. Vilchez , B. -B. Zhang

Terahertz (THz) communications with multi-GHz bandwidth are envisioned as a key technology for 6G systems. Ultra-massive (UM) MIMO with hybrid beamforming architectures are widely investigated to provide a high array gain to overcome the…

Information Theory · Computer Science 2021-06-09 Longfei Yan , Yuhang Chen , Chong Han , Jinhong Yuan
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