Fig. 4: rWMSE ratio ϵθ/ϵθ,c of phase estimation regarding the SNR  ~ NS/NB. | Communications Physics

Fig. 4: rWMSE ratio ϵθ/ϵθ,c of phase estimation regarding the SNR  ~ NS/NB.

From: Quantum illumination networks

Fig. 4

Here we precisely evaluate three cases: (i) microwave Radar with NB = 104; (ii) W-band Radar with NB = 32; (iii) THz Radar with NB = 0.6, with m = 50 transmitters with ν = 5000 rounds of experiment. For PA receivers, the amplification rate is g ~ 2m for parallel phase-conjugate receiver (pPCR) and g ~ 2 for serial phase-conjugate receiver (sPCR). Its error refers to the minimum error of all phase values. For correlation-to-displacement (CtoD) protocol, the error is calculated for θj → 0 and ηj ~ 0.5.

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