Block sparse recovery provably recovers range-Doppler maps of extended targets in randomized stepped frequency radar whenever the number of targets is O(N/(M log MN)), a weaker condition than the prior non-block bound.
Random- frequency SAR imaging based on compressed sensing,
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Theoretical Analysis for Extended Target Recovery in Randomized Stepped Frequency Radars
Block sparse recovery provably recovers range-Doppler maps of extended targets in randomized stepped frequency radar whenever the number of targets is O(N/(M log MN)), a weaker condition than the prior non-block bound.