Hardware prototype blind calibration of MWC based on BGPC

Abstract

Compressive sampling has always been an effective way of signal processing, and the most ideal one is modulated wideband converter(MWC). Unfortunately, in practical applications, the multi-channel structure of MWC will face non-ideal factors brought by the system and the environment. The conventional method is generally to pre-calibrate first, so the blind gain phase calibration(BGPC) method that can recover the signal and calibrate the system at the same time becomes a novel and attractive technology. In this article, a blind calibration model for the MWC system is established, which is verified and analyzed in the hardware prototype. Finally, the actual hardware prototype is used to show the superiority of the blind calibration method.