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Efficient wideband jammer ing when using stretch processing

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4 Author(s)
Torres, J.A. ; MITRE Corp., Bedford, MA, USA ; Davis, R.M. ; Kramer, J.D.R. ; Fante, R.L.

Techniques are described for performing adaptive jammer ing over extremely wide bandwidths on radar systems which use linear frequency modulated (LFM) waveforms and stretch processing. It is assumed that the range uncertainty of the target is a small percentage of the equivalent range extent of the uncompressed pulse. The assumption allows the cancellation to take place following stretch processing in either the time domain using a narrowband sliding filter that keeps up with the chirp fate or in the frequency domain. The new approach supports ing performance over gigahertz of bandwidth comparable to that previously achieved over a few megahertz using approximately the same number of spatial degrees of freedom.

Published in:

Aerospace and Electronic Systems, IEEE Transactions on  (Volume:36 ,  Issue: 4 )