Dispersion analysis of spaced antenna scintillation measurement

Grzesiak, Marcin; Wernik, A. W.

doi:10.5194/angeo-27-2843-2009

Cited by 5 publications

(2 citation statements)

References 15 publications

(20 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous researchers have used GPS or GNSS scintillation receivers in single locations [6] or arrays spaced over longer distances for statistical studies [7]. A few notable exceptions are at high latitudes [8], [9] and at low latitudes, [2]; these were typically used in time-limited data campaigns. Jayachandran et al [10] maintained a multiyear record at high latitudes with a nationwide array.…”

Section: Introductionmentioning

confidence: 99%

Ionospheric Irregularity Layer Height and Thickness Estimation With a GNSS Receiver Array

Datta‐Barua

Rubio

et al. 2021

IEEE Trans. Geosci. Remote Sensing

View full text Add to dashboard Cite

This work develops a method by which a kilometer-spaced array of Global Navigation Satellite System (GNSS) scintillation receivers can be used to estimate the ionospheric irregularity layer height and thickness and associated uncertainties on those estimates. Spectra of filtered signal power and phase data are used to estimate these quantities by comparing the observed ratio of the log of the power spectrum to the phase spectrum with the Rytov weak scatter theoretical ratio. A Monte Carlo simulation of noise on the input signal and the irregularity drift velocity is used to quantify the error in estimates of height and thickness. The method is tested using data from the Scintillation Auroral Global Positioning System (GPS) Array (SAGA) sited in the auroral zone at Poker Flat Research Range, Alaska. For the 30-min scintillation period studied, the technique identifies ionospheric scattering from a thick F layer, which correlates well with on-site incoherent scatter radar measurements of peak electron density, for an event previously identified in the literature as likely due to F layer.

show abstract

Section: Introductionmentioning

confidence: 99%

Ionospheric Irregularity Layer Height and Thickness Estimation With a GNSS Receiver Array

Datta‐Barua

Rubio

et al. 2021

IEEE Trans. Geosci. Remote Sensing

View full text Add to dashboard Cite

show abstract

“…There have been a number of significant high-latitude studies of scintillation using GPS [ Mitchell et al , 2005 ; Skone et al , 2009 ; Grzesiak and Wernik , 2009 ; Prikryl et al , 2010 ; Alfonsi et al , 2011 ; Wang et al , 2012 ]. Most GPS high-latitude scintillation studies were made with single scintillation receivers or a network with baselines of one to hundreds of kilometers and, therefore, were not able to investigate the local spatial spectrum of the irregularities or the drift speeds.…”

Section: Introductionmentioning

confidence: 99%

First light from a kilometer‐baseline Scintillation Auroral GPS Array

Datta‐Barua

Deshpande

et al. 2015

Geophysical Research Letters

View full text Add to dashboard Cite

We introduce and analyze the first data from an array of closely spaced Global Positioning System (GPS) scintillation receivers established in the auroral zone in late 2013 to measure spatial and temporal variations in L band signals at 100–1000 m and subsecond scales. The seven receivers of the Scintillation Auroral GPS Array (SAGA) are sited at Poker Flat Research Range, Alaska. The receivers produce 100 s scintillation indices and 100 Hz carrier phase and raw in‐phase and quadrature‐phase samples. SAGA is the largest existing array with baseline lengths of the ionospheric diffractive Fresnel scale at L band. With an initial array of five receivers, we identify a period of simultaneous amplitude and phase scintillation. We compare SAGA power and phase data with collocated 630.0 nm all‐sky images of an auroral arc and incoherent scatter radar electron precipitation measurements, to illustrate how SAGA can be used in multi‐instrument observations for subkilometer‐scale studies.

show abstract