This letter presents a new signal processing subsystem for conventional monopulse tracking radars that offersan improved solution to the problem of dealing with manmadehigh power interference (jamming). It is based on the hybrid useof empirical mode decomposition (EMD) and fractional Fouriertransform (FrFT). EMD-FrFT filtering is carried out for complexnoisy radar chirp signals to decrease the signal’s noisy components. An improvement in the signal-to-noise ratio (SNR) of upto 18 dB for different target SNRs is achieved using the proposedEMD-FrFT algorithm.
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