Performance evaluation on a polyphase filter bank structure based anti-jamming system

Abstract

Satellite communication has a broadband property and wide area coverage. It is also vulnerable to jamming because of the utilization of open channels. In this paper, a satellite transponder adopts a polyphase filter bank structure, which allows flexible frequency management while a nulling scheme was applied to remove narrowband interference signal of a filter bank sub-channel. For this satellite transponder, jamming, polyphase filter bank and nulling scheme are introduced, and in the simulation, we evaluate the performance of the anti-jamming system in terms of BER and PSNR by transceiving random data and images under various jamming environments.