Results 111 to 120 of about 4,973 (237)
Goddard radio interferometry testbed
, 2002 In this project, we constructed the Goddard Radio Interferometry Testbed (GRIT), an experimental model for the Synthesis Imaging Radiometer (SIR). We created a central control interface for the antennas, receivers, X-Y positioner, and post-processing ...
Leach, Katherine Anne +2 more
core
Revisiting Hybrid Interferometry With Low-Frequency Radio Astronomy Arrays [PDF]
, 2017 Radio interferometry most commonly involves antennas or antenna arrays of identical design. The identical antenna assumption leads to a convenient and useful mathematical simplification resulting in a scalar problem.
Colegate, T. +11 more
core +1 more source
Highly sensitive atomic based MW interferometry
Scientific Reports, 2018 We theoretically study a scheme to develop an atomic based micro-wave (MW) interferometry using the Rydberg states in Rb. Unlike the traditional MW interferometry, this scheme is not based upon the electrical circuits, hence the sensitivity of the phase ...
Dangka Shylla +2 more
doaj +1 more source
21 cm Intensity Mapping with the DSA-2000
The Astrophysical JournalLine-intensity mapping is a promising probe of the Universe’s large-scale structure. We explore the sensitivity of the DSA-2000, a forthcoming array consisting of over 2000 dishes, to the statistical power spectrum of neutral hydrogen’s 21 cm emission ...
Ruby Byrne +5 more
doaj +1 more source
3D Surface Profiling via Direct End‐to‐End Regression With a Photonic Geometric Sensor
Laser &Photonics Reviews, Volume 20, Issue 12, 18 June 2026.Measurements of microscale surface patterns are essential for quality control across semiconductor and biomedical industries, yet the development of miniaturized, intelligent systems remains constrained by the complexity and bulkiness of conventional benchtop metrology.
Ziyao Zhang +13 more
wiley +1 more source
Recent Advances in the Laser‐Based Fabrication and Applications of High‐Entropy Alloy Nanoparticles
MetalMat, Volume 3, Issue 2, June 2026.This review presents recent advances in the laser‐based fabrication of high‐entropy alloy nanoparticles, focusing on scalable, environmentally friendly, and compositionally tunable synthesis methods. It highlights the critical influence of laser parameters on nanoparticle size, phase, and morphology, enabling tailored properties for applications in ...
Bibek Kumar Singh +4 more
wiley +1 more source
The Deep Space Network capabilities for radio interferometry
, 1980 The very long baseline interferometry capability as well as the planned capability of the deep space network (DSN) are described. Major emphasis is placed on the following: VLBI development; operational VLBI for DSN calibration; and VLBI for spacecraft ...
Fanselow, J. L.
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Quantification and compensation of temporal decorrelation effects in polarimetric SAR interferometry
, 2012 Several studies showed that Pol-InSAR data especially at lower frequencies such as L- and P-band, are sensitive to the vertical distribution of scatterer along forest height.
Lee, Seung-Kuk +7 more
core +1 more source
Ionospheric Data Fusion With GNSS, GNSS‐RO and Satellite Altimetry Based on Machine Learning
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.Abstract Global Ionospheric Maps (GIMs) are essential in Global Navigation Satellite System (GNSS) applications, particularly for correcting ionospheric delays in single‐frequency positioning. GIMs are mainly derived from dual‐frequency GNSS observations, but the uneven distribution of ground stations—sparse over oceans—reduces accuracy in these ...
Marcel Iten, Shuyin Mao, Benedikt Soja
wiley +1 more source
A distributed algorithm for wide-band radio-interferometry
, 2017 We propose a scalable, randomised algorithm to solve the inverse imaging problem in wide-band radio- interferometry. In the big-data context of the next- generation radio-telescopes, the scalability is paramount due to the large-scale of the problem to ...
Wiaux, Yves; id_orcid +3 more
core +1 more source