Technical University of Denmark Radar Deployment and Results IIP Team.
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Transcript of Technical University of Denmark Radar Deployment and Results IIP Team.
Technical Universityof Denmark
Radar Deployment and
Results
IIP Team
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Background• Radars
– Installation in Calgary• Measure antenna
pattern
– to measure ice thickness, image ice bed and map layers at depth
• Antennas– Twin Otter
Antenna arrays
Equipment rack
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Background-- Specifications• VHF Radar• To measure thickness, map layers
and image ice-bed interface– Center freq = 150 MHz– Bandwidth = 20
MHz – Loop sensitivity > 210 dB– Depth resolution = 3-4.5 m in
ice– Image
• Resolution – Cross-track = 40-
100 m– Along track =
100 m• Swath width
– Min = 1000 m
– Maximum~1500 m
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Sample Results
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A-scopes
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Noise problem
• The laser had to be operated to get the INS data. The laser increased the noise floor by about 10 dB every now and then (it was triggering at 5 kHz). – From Pannir on May 23, 2006
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Issues
• Calibration– To determine imbalance in channels
• Amplitude• Phase
– Ocean data• We are analyzing these data
– Noise problem• Radiated noise
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Wet surfaces
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Sample results
Depth sounder mode SAR image mosaic (Paden, 2006)
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Higher frequency
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Summary
• The mission is successful– Obtained good data for the IIP project– Collected a good data set over fast
flowing glaciers– Data are being processed.