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ECCM capabilities of an ultrawideband bandlimited random noise imaging radar

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2 Author(s)
D. S. Garmatyuk ; Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE, USA ; R. M. Narayanan

Investigated here is high-resolution imaging of targets in noisy or unfriendly radar environments through a simulation analysis of the ultrawideband (UWB) continuous-wave (CW) bandlimited random noise waveform. The linear FM chirp signal was selected as a benchmark radar waveform for comparison purposes. Simulation of the recovery of various types of target reflectivity functions (TRFs) for these waveforms were performed and analyzed. In addition, electronic counter-countermeasure (ECCM) capabilities for both types of systems were investigated. The results are compared using the error between the interference (jamming)-free recovered TRF and the recovered TRF under noisy conditions as a function of the signal-to-interference/jamming ratio (SIR/SJR). Our analysis shows that noise waveforms possess better jamming immunity (of the order of 5-10 dB improvement over the linear FM chirp) due to the unique radar correlation processing in the receiver.

Published in:

IEEE Transactions on Aerospace and Electronic Systems  (Volume:38 ,  Issue: 4 )