Intentional Electromagnetic Interference Reception in 0.5-2.0 GHz

Intentional electromagnetic interference (IEMI) in 0.5-2.0 GHz corrupts the electronic systems and wireless communication due to significant power transmitted in the said frequency range. We present the characteristics of IEMI at the receiver-end experimentally, when transmitted in office environments. Based on the observations, we successfully detected the ultrawideband (UWB) IEMI using multiband spectrum sensing techniques. We have implemented a system-level IEMI receiver by partitioning the frequency band into eight sub-bands and using ADRV9009 to downconvert and digitize each sub-band. A comparative study of receiving and combining the eight sub-bands simultaneously, in a time-interleaved manner, is presented.