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Adaptive cancellation of impulsive interference in phased array radar

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1 Author(s)
Daniel F. Marshall ; Raytheon Company, 528 Boston Post Road, Sudbury MA 01776

Performance of a pulse-Doppler radar may be severely degraded by high-power pulses emitted by other nearby radars operating in the same frequency band. Typical approaches to mitigating the resulting impulses in the received radar data may impose stressing requirements in the areas of probability of impulse detection, throughput, and estimation error. This paper proposes an adaptive nulling approach to mitigation of impulsive interference. This approach ameliorates the disadvantages associated with conventional impulse mitigation. By exploiting prior knowledge about this type of interference, the effort may be decomposed into two separate nulling stages. This provides a novel application for the Two-Step Nulling (TSN) algorithm, which has previously been used in Space-Time Adaptive Processing (STAP) applications.

Published in:

Phased Array Systems and Technology (ARRAY), 2010 IEEE International Symposium on

Date of Conference:

12-15 Oct. 2010