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27 April 2010Iterative sidelobe reduction in transmission-constrained, stepped frequency, synthetic aperture radar
Researchers at the Army Research Laboratory (ARL) have recently developed an iterative technique for improving
image quality in ultrawideband (UWB) radar systems. This technique, dubbed "recursive sidelobe minimization" (RSM),
has been applied extensively to data sets in which no constraints have been placed on the amount of transmitted
bandwidth. That is, no frequency notching was required prior to transmission of the waveform. In this paper we describe
an extension of the earlier RSM technique designed to reduce the artifacts introduced by frequency notching. We include
results obtained applying the technique to both simulated and measured data.