Title :
ECCM capabilities of an ultrawideband bandlimited random noise imaging radar
Author :
Garmatyuk, Dmitriy S. ; Narayanan, Ram M.
Author_Institution :
Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE, USA
fDate :
10/1/2002 12:00:00 AM
Abstract :
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.
Keywords :
CW radar; bandlimited signals; chirp modulation; electronic countermeasures; jamming; radar imaging; radar interference; radar resolution; random noise; electronic counter-countermeasure; high-resolution imaging; jamming immunity; linear FM chirp; radar correlation processing; signal-to-interference/jamming ratio; simulation analysis; target reflectivity function; ultrawideband CW bandlimited random noise imaging radar; Analytical models; Chirp; Electronic countermeasures; High-resolution imaging; Image analysis; Jamming; Radar imaging; Ultra wideband radar; Ultra wideband technology; Working environment noise;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2002.1145747
