HFSWR TRIAL FOR AIRCRAFT DETECTION AND INTERFERENCE SUPPRESSION. PHASE 2

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Authors
  1. Ponsford, T.
Corporate Authors
Raytheon Canada Ltd, Waterloo ONT (CAN);Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
This is the final report on the joint HFSWR trials of aircraft detection and interference suppression at Cape Bonavista, Newfoundland. These trials used an 8-channel data acquisition system, an array of 4 quadlet antennas, and 2 horizontal dipoles. The quadlets were spaced 37.5m in the azimuth direction. Each quadlet comprised 4 Zentec vertical whip antennas spaced 18.75m in the boresight dimensions. The objectives were: (a) Verify the performance of an interference suppression algorithm in the presence of known targets, and (b) Further the design of cost-effective interference suppression techniques. A King Air Turbo-Prop aircraft was the target in the trials. The first task was successful. The interference suppression algorithm did not affect the detection of this aircraft. The second task could not be completed, because the data collected were unsuitable for the task. These data could not be used to develop interference suppression techniques based on the directional properties of interference. Preliminary analysis showed that many interfering signals were present and that these signals collectively behaved like isotropic noise. The data also could not be used to develop techniques based on the polarimetric properties of interference, because the horizontal dipoles did not have enough discrimination against vertically polarized signals. TRUNCATED
Keywords
Atmospheric noise;HFSWR (High Frequency Surface Wave Radar);Interference suppression;Afternoon;Evening
Report Number
ASD-270;DREO-CR-97-630 — Technical Report (Final)
Date of publication
01 May 1996
Number of Pages
56
DSTKIM No
97-04488
CANDIS No
506393
Format(s):
Hardcopy;Document Image stored on Optical Disk

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