Multi-Band Quantum Wireless Sensing for Rydberg Atomic Receivers

This letter proposes a multi-band quantum wireless sensing algorithm for the Rydberg atomic receiver. The proposed algorithm first estimates the non-linear wireless channel for the atomic receiver by adopting the biased Gerchberg-Saxton (GS) algorithm to retrieve the eliminated phase information. Thereafter, correlations between the estimated channel and multi-band steering vectors are calculated in the quantized angular grids to detect the angle-of-arrivals (AoAs) of multi-band users in an exhaustive manner. To the best of our knowledge, the proposed algorithm enables multi-band quantum wireless sensing for the first time and is unveiling the theoretical potential of the Rydberg atomic receivers.