激光与光电子学进展, 2020, 57 (13): 130101, 网络出版: 2020-07-09
冰晶粒子对量子干涉雷达探测性能的影响 下载: 882次
Influences of Ice Crystal Particles on the Detection Performance of Quantum Interference Radar
量子干涉雷达 冰晶粒子 分辨率 误码率 传输距离 quantum interference radar ice crystal particles resolution bit error rate transmission distance
摘要
为研究冰晶粒子对量子干涉雷达性能参数的影响,基于冰晶粒子的Van de Hulst近似理论、标准伽马分布和Henyey-Greenstein相函数,研究了冰晶粒子背景下雷达探测光子的偏振变化,建立了冰晶粒子的不同参量对量子干涉雷达探测光子的传输距离、分辨率和误码率的影响模型。仿真结果表明,增加冰晶粒子的有效尺度,会增大探测光子的能量耗散,导致探测光子的传输距离下降;发射波束光子数目一定时,量子干涉雷达的分辨率随冰晶粒子光学厚度的增加而降低;当冰晶粒子浓度一定时,链路的量子误码率随冰晶粒子的有效尺度与非对称因子的增加而增加,且不同类型的冰晶粒子对量子误码率的影响程度不同;当保持高偏振对比度时,将椭圆率角减少到一定范围内可以降低量子误码率。
Abstract
In order to study the influence of ice crystal particles on the performance parameters of quantum interference radar, based on the Van de Hulst approximation theory of ice crystal particles, standard gamma distribution, and Henyey-Greenstein phase function, the polarization changes of radar detection photons in the background of ice crystal particles are studied. The influence model of different parameters of ice particles on transmission distance, resolution, and bit error rate of quantum interference radar detection photons is established. Simulation results show that increasing the effective scale of ice crystal particles will increase the energy dissipation of the detected photons, resulting in a decrease in the transmission distance of the detected photons. The resolution of the quantum interference radar decreases as the optical thickness of the ice crystal grains increases when the number of transmitted beam photons is fixed. Particularly, when the concentration of ice crystal particles is constant, the quantum bit error rate of the link increases with the increase of effective size of the ice crystal particles and the asymmetric factor. In addition, different types of ice crystal particles have different effects on the quantum bit error rate. Meanwhile, in the case of high polarization ratio, reducing the ellipticity angle within a certain range will accordingly bring down the quantum bit error rate.
聂敏, 张怡心, 杨光, 张美玲, 孙爱晶, 裴昌幸. 冰晶粒子对量子干涉雷达探测性能的影响[J]. 激光与光电子学进展, 2020, 57(13): 130101. Min Nie, Yixin Zhang, Guang Yang, Meiling Zhang, Aijing Sun, Changxing Pei. Influences of Ice Crystal Particles on the Detection Performance of Quantum Interference Radar[J]. Laser & Optoelectronics Progress, 2020, 57(13): 130101.