PRBS를 사용하는 Sub-Nyquist 표본화 시스템의 측정행렬 분석

For a sub-Nyquist sampling system using Pseudo random binary sequences (PRBS), non-ideal characteristics of hardware parts used in the system result in unexpected and unmanageable model mismatches. In this paper, we introduce a representative sub-Nyquist sampling system named Modulated Wide Converter(MWC) and analysis how non-ideal characteristics such as band limited effect and non-linearity influence on a sensing matrix which is essential for recovery. We show that the sensing matrix perturbed by band limited effect can be easily treated and non-linearity case corrupts the output of system as adding error terms which are dependant on the input signal and PRBSs.