The Canadian Advanced Digital Ionosonde (CADI) is a low cost, state of the art,
flexible, full featured ionosonde ideal for both routine ionospheric monitoring
and research.
CADI provides sounding capability using high power radio
frequency pulses at vertical incidence. The system integrates phase coding
techniques, solid state electronics and PC technology to make CADI a
significantly smaller and less expensive ionosonde.
The system may be operated
with single or multiple receivers. Observables include: echo delay (height)
versus frequency; the phase and amplitude of the echo; angle of arrival; and
polarization of the echo. Drifts can also be measured using the spaced-antenna
method.
Applications
• Atmospheric Research
The combination of portability, low cost, and ease of installation make CADI
ideal for both permanent installations and campaign-type research programs of
shorter duration.
• Polar Cap Studies
Studies including Morphology and behaviour of patches and
arcs.
• Auroral Zone Studies
Measurement in stand-alone and in conjunction with optical and VHF/HF radar
Measurements.
• Equatorial and High Latitude Electrojet Studies
• Ionospheric Monitoring
Scaling of standard URSI parameters. Data storage format suitable for
World Data Centre Archives.
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