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海面上方低飞小目标多普勒谱研究
Doppler spectrum of low-flying small target above time-varying sea surface
投稿时间:2017-12-26  修订日期:2018-04-27
中文关键词:时变海面  低飞目标  混合算法  多普勒谱
英文关键词:time-varying sea surface  low-flying target  hybrid algorithm  Doppler spectrum
基金项目:国家自然科学基金资助项目(61701428);延安大学科研基金资助项目(YDBK2016-17;DY2017-06)
作者单位
杨鹏举 School of Physics and Electronic InformationYan’an UniversityYan’an Shaanxi 716000China 
吴 瑞 School of Physics and Electronic InformationYan’an UniversityYan’an Shaanxi 716000China 
赵 晔 School of Physics and Electronic InformationYan’an UniversityYan’an Shaanxi 716000China 
任新成 School of Physics and Electronic InformationYan’an UniversityYan’an Shaanxi 716000China 
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中文摘要:
      针对海面上方低空飞行慢速小目标探测问题,采用Kirchhoff近似(KA)和矩量法(MoM)的混合方法研究了时变海面与其上方运动目标的后向散射回波的多普勒特性。分析了海况参数、入射角、目标运动速度、目标与海面之间的距离以及目标截面形状等对后向散射回波多普勒特性的影响。这项研究对于海面与目标耦合散射机理的分析以及海杂波背景下低飞慢速小目标的检测与识别具有重要意义。
英文摘要:
      Aiming at the detection of low-flying small target within sea clutter, a hybrid algorithm of Kirchhoff Approximation(KA) and Method-of-Moments(MoMs) is utilized for analyzing the Doppler spectrum signatures of low-flying small target located above rough sea surface. The effects of sea state parameters, incidence angles, the speed of flying target, the distance between the target and the sea surfaces, the shape of the target’s cross-section on Doppler spectrum signatures of backscattered echoes from time-varying sea surface are investigated in detail. This study is of great importance for the analysis of coupling scattering mechanism between sea surface and the target above it as well as for the detection and identification of low-flying small target within sea clutter.
引用本文:杨鹏举,吴 瑞,赵 晔,任新成.海面上方低飞小目标多普勒谱研究[J].太赫兹科学与电子信息学报,2018,16(4):614~618
DOI:10.11805/TKYDA201804.0614
学科分类代码:
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