Results 91 to 100 of about 15,849 (201)
Acceleration computing process in wavelength scanning interferometry
, 2011 The optical interferometry has been widely explored for surface measurement due to the advantages of non-contact and high accuracy interrogation. Eventually, some interferometers are used to measure both rough and smooth surfaces such as white light ...
Gao, F. +2 more
core
Dispersive Fourier Transformation for Versatile Microwave Photonics Applications [PDF]
, 2014 : Dispersive Fourier transformation (DFT) maps the broadband spectrum of an ultrashort optical pulse into a time stretched waveform with its intensity profile mirroring the spectrum using chromatic dispersion.
Wang, Chao, Chao Wang
core +1 more source
European Physical Journal C: Particles and FieldsIn addition to the gravitational-wave (GW) tensor modes of general relativity, more general metric theories of gravity allow up to four additional polarization states.
Chunyu Zhang
doaj +1 more source
Surface Deformation Monitoring in Coal Mine Area Based on PSI
IEEE Access, 2019 It is difficult to get robust deformation results using conventional differential interferometric synthetic aperture radar (D-InSAR) method, due to the limitation of the phase measurement error, baseline error, and atmospheric delay in synthetic aperture
Changjun Huang, Hongmei Xia, Jiyuan Hu
doaj +1 more source
Interseismic Creep Along the Enriquillo–Plantain Garden Fault, Haiti, Estimated From InSAR
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract The Enriquillo–Plantain Garden fault zone (EPGFZ) is a major left‐lateral strike‐slip fault in southern Haiti hosting several recent destructive earthquakes, including the 2021 MW 7.1 Nippes event with primary thrust‐slip. To investigate how strain is accommodated in the vicinity of the 2021 event, we analyzed Sentinel‐1 interferometric ...
Rishabh Dutta +2 more
wiley +1 more source
Time Delay Interferometry and LISA Optimal Sensitivity
, 2003 The sensitivity of LISA depends on the suppression of several noise sources; dominant one is laser frequency noise. It has been shown that the six Doppler data streams obtained from three space-crafts can be appropriately time delayed and optimally combined to cancel this laser frequency noise.
Pai, A. +3 more
openaire +3 more sources
Frontiers in Astronomy and Space SciencesTropospheric delay is a major error source for the high-accuracy Very Long Baseline Interferometry (VLBI) technique due to rapid water vapor variations. The Niell mapping function (NMF) and Global Mapping Function (GMF) are extensively applied to convert
W. L. Zhou +13 more
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Mitigation of the flexing-filtering effect in time-delay interferometry
Classical and Quantum GravityAbstract In early 2024, European Space Agency formally adopted the Laser Interferometer Space Antenna (LISA) space mission with the aim of measuring gravitational waves emitted in the millihertz range. The constellation employs three spacecraft (SC) that exchange laser beams to form interferometric measurements over a distance of 2.5 ...
Shivani Harer +2 more
openaire +2 more sources
Estimation of the Surface Velocity Field of Temperate Glaciers Using Airborne SAR Interferometry [PDF]
, 2008 This paper presents a methodology to process airborne interferometric SAR data to measure surface velocity fields of temperate glaciers. First, a solution based on multi-squint is proposed to estimate residual motion errors (inaccuracies of the ...
Horn, Ralf +4 more
core
Measurement report: Can zenith wet delay from GNSS “see” atmospheric turbulence? Insights from case studies across diverse climate zones [PDF]
Atmospheric Chemistry and PhysicsGlobal navigation satellite system (GNSS) microwave signals are nearly unaffected by clouds but are delayed as they travel the troposphere. The hydrostatic delay accounts for approximately 90 % of the total delay and can be modelled well as a function of
G. Kermarrec +3 more
doaj +1 more source