Abstract
To examine the single-photon quantum radar cross-section of cylindrical surface and its specific advantages over the classical radar cross-section, a photon wave function in which the distance vectors causing interference are decomposed is introduced in this study. A closed-form expression of the single-photon quantum radar cross-section of cylindrical surface is derived. The influences of the length and curvature radius of cylindrical surfaces with different electrical sizes are analyzed, and the closed-form expressions of the quantum and classical radar cross-sections of cylindrical surface are compared with each other. The analyses of the closed-form expression and simulation results show that the electrical length of the cylindrical surface determines the number of side lobes of the quantum radar cross-section; meanwhile, the curvature radius has a linear relation with the overall strength of the quantum radar cross-section, and the electrical size of the curvature radius determines the envelope of the quantum radar cross-section curve. Compared with the classical radar cross-section, the quantum radar cross-section of a cylindrical surface has the advantage of side-lobe enhancement, which is beneficial for detecting stealth targets.
Highlights
a photon wave function in which the distance vectors causing interference are decomposed is introduced in this study
classical radar cross-sections of cylindrical surface are compared with each other. The analyses of the closed-form expression and simulation results show that the electrical length
of the cylindrical surface determines the number of side lobes of the quantum radar cross-section
Summary
因此数值模拟适用于 任何形状目标的 QRCS 计算仿真, 但是存在计算 量大和随原子采样间隔增大而增大的计算误差的 问题. 根据散射能量 与入射能量守恒, 单光子 QRCS 的计算式为 [3] 类比于 CRCS, QRCS 被定义为 [3] Ds σQ = 4πA⊥ (θ, φ) ∫ 2π ∫ π/2 ∫ ∫ s exp (jKx′) ds sin (θ′) dθ′dφ′
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