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张志远 , 赵原源 . 新型二十面体三角形角反射器的电磁散射特性分析 [J ] . 指挥控制与仿真 , 2018 , 40 ( 4 ): 133 - 137 . DOI: 10.3969/j.issn.1673-3819.2018.04.030 http://doi.org/10.3969/j.issn.1673-3819.2018.04.030 基于CST软件采用SBR算法对新型二十面体三角形角反射器(ITTCR)在10 GHz频点两种极化方式全角域静态RCS进行了仿真。分别采用Lognormal、Weibull、Burr模型对全角域RCS进行统计建模,Kolmogorov-Smirnov检验结果表明Burr具有较好拟合效果。研究成果为ITTCR的性能评估提供重要的仿真依据和理论支撑。

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谢涛涛 , 罗祎 , 肖大为 . 水下非正交声学角反射器声散射特性研究 [J ] . 水下无人系统学报 , 2022 , 30 ( 1 ): 94 - 101 .

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罗祎 , 王杰亚 , 谢涛涛 . 提升水下角反射器声反射性能的泡沫塑料夹层方法 [J ] . 兵工学报 , 2020 , 41 ( 10 ): 2081 - 2087 . DOI: 10.3969/j.issn.1000-1093.2020.10.018 http://doi.org/10.3969/j.issn.1000-1093.2020.10.018 常见的金属板角反射器水声目标强度及散射稳定性均不理想，为此，根据水-反射层声阻抗失配原则，提出利用低阻抗泡沫塑料夹层提高角反射器声反射性能的方法。设计水下聚氨酯泡沫夹层板，计算其声反射系数，并从频率、入射角度等方面与单层金属板声反射性能进行对比；在此基础上，构建一种新的聚氨酯泡沫夹层角反射器，并针对水下角反射器的凹形浸水薄壁结构，采用有限元软件ANSYS结合声学软件SYSNOISE，对水下泡沫夹层角反射器与金属板角反射器的声散射特性进行仿真计算和对比；在消声水池对两种角反射器声反射性能进行对比实验。研究结果表明，在同样边长条件下，聚氨酯泡沫夹层角反射器比金属板角反射器具有更优的声反射性能，其目标强度及散射稳定性均优于金属板角反射器，证明了该方法的有效性。

LUO Y , WANG J Y , XIE T T . A foam interlayer method for improving on the acoustic reflection capability of underwater corner reflector [J ] . Acta Armamentarii , 2020 , 41 ( 10 ): 2081 - 2087 . (in Chinese) DOI: 10.3969/j.issn.1000-1093.2020.10.018 http://doi.org/10.3969/j.issn.1000-1093.2020.10.018 For the unsatisfactory acoustic target strength and scattering stability of common underwater metal corner reflector, a method for improving the acoustic reflection performance of corner reflector by using low impedance foam interlayer was proposed according to the principle of water-reflector layer acoustic impedance mismatch, and a polyurethane foam interlayer plate was designed. Its acoustic reflectance was calculated, and was compared with that of monolayer metal plate in terms of frequency and incident angle. Based on this, a new polyurethane foam interlayer corner reflector is constructed. Considering the concave shape and submerged thin-wall structure of the underwater corner reflector, the acoustic scattering characteristics of the underwater foam interlayer corner reflector and the metal plate corner reflector are simulated and compared by using the finite element software ANSYS combined with the acoustic software SYSNOISE. Finally, the contrast experiments of the two kind corner reflectors were carried out in anechoic pool. The results show that the polyurethane foam interlayer corner reflector has better acoustic reflection performance than the metal plate corner reflector, and its target strength and scattering stability are better under the condition of the same side length.

罗祎 , 陈鑫 . 水下空气腔角反射器声散射特性 [J ] . 兵工学报 , 2019 , 40 ( 10 ): 2129 - 2135 . DOI: 10.3969/j.issn.1000-1093.2019.10.019 http://doi.org/10.3969/j.issn.1000-1093.2019.10.019 针对水下金属板角反射器目标强度低、具有明显的频率特性等不足，设计了一种新的弹性空气腔角反射器。采用结构有限元耦合流体边界元法，对水下空气腔角反射器和单层金属薄板角反射器的声散射特性进行仿真计算和对比，分析了入射波频率为5～15 kHz范围内，平板厚度、入射角度等因素对不同类型角反射器目标强度的影响及其散射机理并进行了实验验证。研究结果表明：空气腔角反射器散射强度大，无明显的频率特性，去耦作用明显；空气腔角反射器声散射仿真结果和消声水池实测数据进行对比，二者基本一致；相比笨重且回波强度较弱的单层金属板角反射器，空气腔角反射器具有更优的反声性能和更轻的质量，是理想的水下声反射装置。

LUO Y , CHEN X . Acoustic Scattering characteristics of underwater air-filled cavity corner reflector [J ] . Acta Armamentarii , 2019 , 40 ( 10 ): 2129 - 2135 . (in Chinese) DOI: 10.3969/j.issn.1000-1093.2019.10.019 http://doi.org/10.3969/j.issn.1000-1093.2019.10.019 In accordance with the weakness of low target strength and obvious frequency characteristics of underwater elastic metal plate corner reflectors, a new air-filled cavity elastic corner reflector is designed. The scattering acoustic fields of underwater air-filled cavity corner reflector and single layer metal sheet corner reflector are simulated and compared by using the structural finite element coupled fluid boundary element method (IBEM). The influences of thickness and incident angle on the target strengths and scattering mechanisms of different corner reflectors within 5-15 kHz frequency of incident wave are analyzed and verified through experiment. The research results show that the air-filled cavity corner reflector has great scattering intensity and no obvious frequency characteristics, and the decoupling effect is obvious. The simulated results are in basic agreement with the experimental results. Compared with the cumbersome single layer metal corner reflector with weak reflection intensity, the air-filled cavity corner reflector has better acoustic reflection performance and lighter weight, and is an ideal underwater acoustic reflection device. Key

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