A novel method to select multi band sampling frequency

This article proposes a novel multi band sampling frequency selection method to overcome the drawbacks of conventional multi band sampling algorithms being complex and not convenient for engineering implementation. This method focuses on “spectrum anti-aliasing” and demonstrates the complete sampling frequency design process through a combination of theoretical formula analysis and spectrum structure deduction. Simulation have shown that the proposed sampling frequency selection method can effectively determine the specific “available sampling frequency” and corresponding Nyquist regions, which can provide important references for the sampling and demodulation of actual multi band signals.