The Principle and Performance Analysis of Quantum Illumination Radar

Abstract

In recent years the development of stealth fighters has combined the achievements of materials science applying a layer of absorbing paint on the fuselage can greatly reduce the radar cross section this makes traditional radars ineffective To counter this fact quantum radars that use quantum effects have begun to receive widespread attention This article first introduces the operation principle of various quantum radars and their respective advantages and disadvantages Next focus on the introduction of quantum illumination radar using entangled properties This kind of radar uses joint measurement to detect the returned entangled photons thus obtaining obtain higher sensitivity and anti-noise ability than laser radar Because the emitted signal is a single photon the quantum illumination radar can obtain a larger radar scattering cross-sectional area in the detection of targets with low reflectivity This feature is of great significance when detecting stealth fighters This article divides the operation of quantum illumination radar into five topics and introduces in detail the emission light source atmospheric attenuation photon reflection storage of idle photons and quantum receiver Numerical simulations show that the greater the number of noise photons and the fewer signal photons the greater the signal-to-noise ratio advantage of quantum illumination radar At the same time the atmospheric reflectivity will also directly affect the performance gap between quantum illumination radar and traditional radar

Date of Award	2020
Original language	English
Supervisor	Ciann-Dong Yang (Supervisor)