Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session G00: Poster Session I (2pm- 5pm CST)
2:00 PM,
Tuesday, March 15, 2022
Room: McCormick Place Exhibit Hall F1
Abstract: G00.00180 : Ultimate limit of quantum pulse-compression ranging: hypothesis testing and parameter estimation*
Presenter:
Quntao Zhuang
(University of Arizona)
Authors:
Quntao Zhuang
(University of Arizona)
Jeffrey H Shapiro
(Massachusetts Institute of Technology MIT)
First, we remove the binary-hypothesis limitation of QI by proposing a QI ranging protocol. By formulating ranging as multiple-hypothesis testing, we show that entanglement affords a 6-dB advantage in error-probability exponent against the optimal classical scheme for localizing a target within a set of contiguous range-resolution bins. Next, we take a parameter estimation approach and derive the range-delay accuracy limit through continuous-time quantum analysis. We show that the QI ranging protocol — a quantum pulse-compression radar that exploits the entanglement between a high time-bandwidth product transmitted signal pulse and a high time-bandwidth product retained idler pulse — achieves that limit. We also show that QI ranging offers mean-squared range-delay accuracy that can be 10's of dB better than a classical pulse-compression radar's of the same pulse bandwidth and transmitted energy.
*DARPA YFA N660012014029; ONR N00014-19-1-2189; Raytheon Technologies; MITRE Corporation.
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