太赫兹科学与电子信息学报
太赫玆科學與電子信息學報
태혁자과학여전자신식학보
Information and Electronic Engineering
2014年
3期
409-415,424
,共8页
金侃%叶春茂%杨健%鲁耀兵%余继周
金侃%葉春茂%楊健%魯耀兵%餘繼週
금간%협춘무%양건%로요병%여계주
雷达回波生成%物理光学法%GPGPU并行计算%多卡调度
雷達迴波生成%物理光學法%GPGPU併行計算%多卡調度
뢰체회파생성%물리광학법%GPGPU병행계산%다잡조도
radar echo generation%Physical Optics method%GPGPU parallel computing%cluster scheduling
为研究目标雷达回波高逼真度模拟生成对雷达系统设计及雷达信息获取理论,通过物理光学的电磁计算模拟目标电磁特性,并结合系统参数和波形应用生成相应的雷达虚拟回波。为提高电大尺寸目标雷达回波模拟的计算效率,构建了一种基于通用图形计算卡(GPGPU)和中央处理单元(CPU)组成的异构并行硬件平台,结合并行软件编程技术实现高逼真度雷达回波快速生成,同时对并行优化策略,特别是多卡调度等并行化关键技术进行了设计,最终的并行软件平台回波生成效果表明了该平台在雷达系统设计和理论研究方面的潜力。
為研究目標雷達迴波高逼真度模擬生成對雷達繫統設計及雷達信息穫取理論,通過物理光學的電磁計算模擬目標電磁特性,併結閤繫統參數和波形應用生成相應的雷達虛擬迴波。為提高電大呎吋目標雷達迴波模擬的計算效率,構建瞭一種基于通用圖形計算卡(GPGPU)和中央處理單元(CPU)組成的異構併行硬件平檯,結閤併行軟件編程技術實現高逼真度雷達迴波快速生成,同時對併行優化策略,特彆是多卡調度等併行化關鍵技術進行瞭設計,最終的併行軟件平檯迴波生成效果錶明瞭該平檯在雷達繫統設計和理論研究方麵的潛力。
위연구목표뢰체회파고핍진도모의생성대뢰체계통설계급뢰체신식획취이론,통과물리광학적전자계산모의목표전자특성,병결합계통삼수화파형응용생성상응적뢰체허의회파。위제고전대척촌목표뢰체회파모의적계산효솔,구건료일충기우통용도형계산잡(GPGPU)화중앙처리단원(CPU)조성적이구병행경건평태,결합병행연건편정기술실현고핍진도뢰체회파쾌속생성,동시대병행우화책략,특별시다잡조도등병행화관건기술진행료설계,최종적병행연건평태회파생성효과표명료해평태재뢰체계통설계화이론연구방면적잠력。
Obtaining an ideal simulated radar echo is of great importance in relative radar system design and radar information acquisition research. A method based on Physical Optics(PO) is proposed to calculate the electromagnetic scattering of target. The parameters of radar system and transmitted waveform are also considered during the calculation. In order to satisfy the requirement of rapid echo generation for electrically large target,a parallel platform which consists of General-Purpose computation on Graphics Processing Units(GPGPU) and Central Processing Unit(CPU) is built and the corresponding software is programmed. The whole system adopts some parallel optimization methods such as cluster scheduling. Numerical experiments demonstrate that the platform has a great potential for radar system design and research.