Modulated wideband converter with run length limited sequences

Abstract

The modulated wideband converter (MWC) is a powerful sub-Nyquist sampling system, which can acquire sparse wideband analog signal without prior information of frequency support. In this letter, we aim at enlarging the input bandwidth of MWC under a certain chip rate constraint, which is realized by utilizing run length limited (RLL) sequence in the modulation stage. Simulation results show that when applying our method, input bandwidth of MWC can be improved by 25% without reconstruction performance loss.