Abstract
Based on the basic principle and key technology of the repeater cancellation system, an airborne active repeater cancellation stealth system based on DRFM is designed. Considering the influence of energy cancellaty, target echo signal-to-noise ratio and radar detection factor synthetically, The influence of system direction finding error on is analyzed and based on radar uncertainty principle, regarding the delay measurement error of the incident radar signal under the Gaussian envelope as upper bound, the analysis method of system performance limit is given. Simulation results show that the decrease of the distance between target and radar will increase the cancellation performance requirement of the system and it requires high system direction finding accuracy to have a good cancellation effect. However, when the signal envelope is Gaussian envelope, the system cannot achieve highperformance cancellation stealth.
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