• Publications
  • Influence
A three-dimensional time-dependent algorithm for ionospheric imaging using GPS
Global Positioning System (GPS) satellite receivers provide a world-wide network of phase and group delay measurements. The combination of two-frequency measurements can be used to derive theExpand
  • 182
  • 10
  • PDF
History, current state, and future directions of ionospheric imaging
TLDR
We present a comprehensive review of the history, current state, and future directions of ionospheric imaging. Expand
  • 188
  • 8
  • PDF
Imaging of fast moving electron-density structures in the polar cap
The imaging of fast-moving electron-density structures in the polar cap presents a unique set of challenges that are not encountered in other ionospheric imaging problems. GPS observations of totalExpand
  • 58
  • 7
  • PDF
GPS scintillations and total electron content climatology in the southern low, middle and high latitude regions
In recent years, several groups have installed high-frequency sampling receivers in the southern middle and high latitude regions, to monitor ionospheric scintillations and the total electron contentExpand
  • 26
  • 5
GPS phase scintillation associated with optical auroral emissions: First statistical results from the geographic South Pole
[1] Ionospheric irregularities affect the propagation of Global Navigation Satellite System (GNSS) signals, causing radio scintillation. Particle precipitation from the magnetosphere into theExpand
  • 47
  • 4
  • PDF
Four-dimensional electrical capacitance tomography imaging using experimental data
TLDR
We present a robust and computationally efficient 4D image reconstruction algorithm applied to real ECT data. Expand
  • 145
  • 3
  • PDF
Extreme space weather: impacts on engineered systems and infrastructure
  • 119
  • 3
  • PDF
GPS TEC and scintillation measurements from the polar ionosphere during the October 2003 storm
TLDR
GPS scintillation over Svalbard can originate from traceable ionospheric plasma structures convecting from the American sector. Expand
  • 134
  • 3
Bipolar climatology of GPS ionospheric scintillation at solar minimum
[1] High-rate sampling data of Global Navigation Satellite Systems ionospheric scintillation acquired by a network of GPS Ionospheric Scintillation and TEC Monitor receivers located in the SvalbardExpand
  • 99
  • 3
The SGR-ReSI - A new generation of space GNSS receiver for remote sensing
SSTL has undertaken pioneering work in spaceborne GPS and GNSS, ranging from miniaturised space GPS receivers, to the GIOVE-A Galileo demonstrator satellite, which itself carried an experimental GEOExpand
  • 11
  • 3
...
1
2
3
4
5
...