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Analysis of terrain scattered interference-mitigation

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1 Author(s)
Nelander, A. ; Swedish Defence Res. Agency, Linkoping, Sweden

Terrain scattered interference mitigation methods for airborne radar have been studied and deconvolution methods for interference suppression have been proposed. This paper describes an analysis of the terrain scattered interference mitigation performance for different conditions and limitations. The direct path signal must be accurately estimated without strong multipath errors. A time-limited impulse response is required to avoid too much suppression of target signals. Small relative Doppler shift errors are required between the direct path and the terrain scattered paths. Several strong jamming signal sources cannot be resolved and suppressed. Receiver blocking gives errors in the impulse response estimate. Clutter signals must be suppressed for accurate impulse responses. Numerical stability must be ensured in the inverse filtering and deconvolution operations.

Published in:

Radar Conference, 2004. Proceedings of the IEEE

Date of Conference:

26-29 April 2004