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In this paper, a sub-Nyquist sampling system for multiband signals is presented, which can perform accurate spectrum sensing and reconstruction. The system is based on PXI bus and virtual instrument technology, which make the proposed system able to be adjusted flexibly for different input signals. Compressive sensing (CS) theory and modulated wideband converter (MWC) are adopted in the system. The...
Multiband signal is a typical signal in the realm of modern communication, whose spectrum is the sum of several narrow band signals in frequency domain. Modulated Wideband Converter (MWC) system, which is based on the emerging theory of Compressed Sensing (CS), can sample multiband signals at a sub-Nyquist rate without carrier frequencies as a precondition. In this paper, a novel recovery strategy...
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