Sufficient conditions are derived to guarantee a unique optimizer for two-dimensional atomic norm minimization under a multi-frequency model characterizing beam squint in MIMO channels.
Dumitrescu,Positive trigonometric polynomials and signal processing applications
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Sufficient Conditions for Unique Optimizer of Two-Dimensional Atomic Norm Minimization Under Multiple Frequencies
Sufficient conditions are derived to guarantee a unique optimizer for two-dimensional atomic norm minimization under a multi-frequency model characterizing beam squint in MIMO channels.