Research Article

Mixed-Signal Parallel Compressive Spectrum Sensing for Cognitive Radios

Figure 5

Frequency-domain signals of a simulated multiband signal. From top to bottom, the four plots represent the transmitted signal by primary users, the received primary users' signal at the sensing radio, the reconstructed signal from the time-domain samples via the Nyquist rate ADC, and the reconstructed signal from the transform-domain samples via mixed-CS at a of .
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