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COMPRESSION OF MULTICARRIER PHASE-CODED RADAR SIGNALS BASED ON DISCRETE FOURIER TRANSFORM (DFT)

COMPRESSION OF MULTICARRIER PHASE-CODED RADAR SIGNALS BASED ON DISCRETE FOURIER TRANSFORM (DFT),R. Mohseni,A. Sheikhi,M. A. Masnadi-Shirazi

COMPRESSION OF MULTICARRIER PHASE-CODED RADAR SIGNALS BASED ON DISCRETE FOURIER TRANSFORM (DFT)   (Citations: 2)
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Multicarrier Phase-Coded signals have been recently introduced to achieve high range resolution in radar systems. As in single carrier phase coded radars, the conventional method for compression of these signals is basedon using matchedfilter or direct computation of autocorrelation function. In this paper we propose a new methodbasedon Discrete Fourier Transform (DFT) that has lower computational complexity comparedto the conventional approach. It has been provedthat the proposedmethodis mathematically equivalent to matchedfiltering, so there is no processing loss. Also the effect of sampling frequency on compression loss has been investigatedandfor the oversampledmatchedfilter of MCPC signals, a computational efficient algorithm basedon polyphase implementation has been proposed.
Published in 2008.
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