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Recovered reflectivity, CS-TV with partial random sampling scheme. (a) Nsub = 0.4Nx × 1Nf = 0.4N: 40% of transducers. For each selected transducer, all the frequency samples are considered; (b) Nsub = 0.6Nx × 0.6Nf = 0.36N: 60% of transducers. For each selected transducers, 60% of the frequencies are considered.
