Conveners
(DASP) T1-2 Ground-based Observations and Radio Propagation | Observations au sol et propagation radio (DPAE)
- David Themens (University of New Brunswick)
Characterization and calibration of measurement instruments is vital to meaningful and traceable data acquisition. However, the complexity of commonly involved systems has long surpassed the scope of what a single person is able to develop, operate, and maintain on their own. In addition, academic interests evolve and regularly require experimental setups to be reconfigured based on lessons...
The high resolution ICEBEAR (Ionospheric Continuous-wave E-region Bistatic Experimental Auroral Radar) is a low-elevation radar designed primarily to observe E-region radar aurora and meteor trails. Having accurate altitude radar observations is critical for a better physical understanding of the height dependence of the plasma processes and irregularities associated with the radar aurora. ...
Riometers provide passive instrumentation for monitoring and analyzing changes to ionospheric absorption. The relative nature of riometer measurements, and their sensitivity to noise, pose challenges for their use in calculation of near real-time absorption. To this end, methods for automatically cleaning, filtering, and processing riometer data from the NRCan riometer network have been...
The Ionospheric Continuous-wave E-region Bistatic Experimental Auroral Radar (ICEBEAR) is a fully digital software defined radio (SDR) high-resolution 49.5~MHz VHF coherent E-region radar with an auroral zone field-of-view situated in western Canada (58N, 106W geographic). First light was in 2017, but in 2019 the final design of ICEBEAR was implemented with the re-configuration of the ICEBEAR...
This study investigates the impact of ionospheric variability on High Frequency (HF; 3-30 MHz) skywave propagation, a critical aspect of long-range radio communication. Using a dedicated HamSCI Grape V1 low-IF receiver (K2MFF) at the New Jersey Institute of Technology (NJIT) in Newark, New Jersey, we analyzed long-term Doppler residual measurements of the 10 MHz WWV signal from Fort Collins,...
When HF radio waves travel through a dispersive medium such as the ionosphere, the refractive index varies along the wave path from the transmitter to the satellite receiver. The electron density profile along the path of the radio waves is used as input to a raytracing model to assess the effect of the refractive index on the radio wave. Using the radio receiver instrument (RRI) on the...
