Radio Frequency Interference (RFI)

In this dataset, Signal of Interest (SoI) is a real-time video stream that is transmitted using DVB-S2 standards in four modulation types including (QPSK, 8/16/32 APSK). Further, this SoI combined by three well-known jamming signals namely, Continuous Wave Interference (CWI), Multiple CWI (MCWI), and Chirp Interference (CI).  This dataset includes 300 samples per modulation type for each type of signal. Therefore, totally there are 4800 samples in the dataset and each sample is a vector of size 1 by 32488 (8ms) at sample frequency 40  Hz. Also, AWGN power is -140 dBm which is approximately equal to SNR=9 dB.

More importantly, SoI is modulated and processed by GNU radio and transmitted using a Universal Software Radio Peripheral (USRP-N210). In GNU radio, the modulation type and amplitude of the transmitted signal can be easily adjusted. A SatCom Emulator (RTLogic T400)  is used for modeling a real-time communication channel. The programmatic control of the channel simulator is facilitated over an Ethernet connection using a control protocol or optional plugin to STK software. The Channel Simulator produces IF/RF signals with extracting signal characteristics for any scenario. The Kratos STK plugin provides real-time, phase-continuous control of the channel simulator when playing STK scenarios. Further, the generated jamming signals (CWI, MCWI, and CI) are transmitted using a NanoBee modem and combined to SoI by a combiner. Finally, the combined signal is received by a MegaBee modem. 

Notably, in this dataset, each jammer indicates a combination of SoI with that jammer, as an instance "CWI_16APSK " refers to SoI (16APSK)+CWI.