Using random coherent states to mimic quantum illumination

Long-Range Entangled Quantum Noise Radar Over Order of Kilometer

“…In this section, we studied the range equation of noise radar more comprehensively compared to [33], which did not consider the effect of atmospheric absorption, detection time, and signal bandwidth. In addition to considering these effects in our formulation, our novelty in this section was the definition of an effective threshold-SNR for noise radars (see (26)) and derivation of an explicit expression for the maximum range of noise radars that has the same form as the one we obtained for direct detection radars (see (9)) and ( 28)). Based on this analogy, one can see a noise radar as a direct detection radar with reducedthreshold SNR.…”

“…In recent years, many theoretical and experimental papers have been published on the optical QI [18]- [26] and also on the microwave QTMS radars [27]- [32] to illustrate the advantages of them with respect to the classical analogous with the same features. The majority of the works on microwave QI are focused on the effect of entanglement on signal-idler correlation enhancement, and the effect of this enhancement on performance of the system in terms of the receiver operation characteristic (ROC) curve and the detection signalto-noise-ratio (SNR) which are not sufficient for analyzing the performance of these systems in long-range applications in reality.…”