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Abstract:
Wide area surveillance is a common task for many of the nation's defense agencies. Coverage needs to be persistent 24 hours a day and through varying interference environments. High Frequency Over-the-Horizon Radar (HF-OTHR) is capable of providing wide area coverage that is on the order of hundreds of thousands of square kilometers. The challenges of using OTHR are manifold. Operating in an often crowded and noisy frequency spectrum (3 - 30 MHz) coupled with the complex and ever-changing state of the ionosphere presents difficulties higherfrequency radars do not face. In this article we describe a technique for suppressing impulsive noise-like disturbances that often corrupt OTHR data. This new technique is enabled by recent advances in high-speed computing that allow near-real-time implementation of sophisticated adaptive signal processing algorithms.
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Description: |
Journal article |
| Pages: |
4 |
| Report Date: |
Jan 2009 |
| Report Number: |
A638125 |
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