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为研究曲面目标的量子雷达散射截面(QRCS)特性,以圆柱曲面为数学模型,并根据光子与镜面物质相互作用的量子描述,分别引入单光子和双光子的概率波函数。基于经典雷达散射截面(CRCS)定义式,分别推导了单光子和双光子的QRCS解析式,并对多光子的QRCS定义进行了扩展和推导。对QRCS和CRCS截然不同的物理本质及其相互关系进行了分析。仿真结果表明,双光子QRCS在不同入射角度下形成的波形在毫米波段出现畸变,因此单光子QRCS具有更好的性能;与CRCS相比,QRCS的主旁瓣比更高。
In order to study the characteristics of quantum radar cross section (QRCS) of curved surface targets, the cylindrical surface is taken as the mathematical model. According to the quantum description of the interaction between photons and specular material, the single and two-photon probability wave functions are respectively introduced. Based on the definition of classical radar cross section (CRCS), QRCS analytic formulas of single photon and two-photon are deduced respectively, and the QRCS definition of multiphoton is extended and deduced. The distinct physical nature of QRCS and CRCS and their interrelations are analyzed. The simulation results show that the waveform formed by two-photon QRCS at different angles of incidence is distorted in the millimeter wave band, and thus the single-photon QRCS has better performance. Compared with CRCS, the main-sidelobe ratio of QRCS is higher.