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Anti-jamming is an important capability for satellite communication (SATCOM) systems, when critical communication links may need to be maintained in hostile environments with smart jammers trying to disrupt the communications. The protection of SATCOM links from intended radio frequency interference (RFI) is a complex task. Anti-jamming (AJ) can be done in multiple domains: space, time, frequency,...
Digital Beamforming (DB) in satellite communication (SATCOM) has drawn significant attention in recent years. DB design is flexible and adaptive among frequencies, bandwidths, and interferences. In this work, we design a cognitive radio testbed for SATCOM for digital beamforming design and implementation. The testbed is capable of simultaneously capturing signals from multiple antennas. Considering...
Protected tactical waveform (PTW) provides cost-efficient, jamming-resistant communications via both government and commercial satellites over multiple frequency bands such as the C-, Ku-, Ka-, and X-band. Frequency hopping (FH) was originally developed for secure communications by exploiting time-frequency diversity over a large spectrum. The anti-jamming feature of the frequency hopping technique...
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