Theoretical Analysis on Noise Performance of Modulated Wideband Converters for Analog Testing

The Modulated Wideband Converter (MWC) is one of the promising sub-Nyquist sampling architectures for sparse wideband signal sensing, cognitive radio applications and so on. In order to design an MWC-based RF receiver that meets a target RF specification, noise figure (NF) of the MWC has to be well-defined by its design properties. This paper reviews a comprehensive explanation for NF of MWC by an analytic approach based on a notation of an average noise figure (ANF) of the MWC, which has been detailed in our prior work in [1]. Consequently, the analysis is proven with simulation and measurement results in order to demonstrate its feasibility.