ID 原文 译文
13004 目标与复杂地海环境复合电磁散射研究一直是电磁领域一大重要课题。 The study of composite electromagnetic scattering from target and rough surface is an important topic in computing electromagnetic fields.
13005 该方面研究在复杂背 景中的目标探测(地海上方低飞导弹、飞机,海上舰船目标,地上坦克目标等)、资源勘探(浅层地下矿物质勘探)等领域发挥着巨大作用,使得该领域的研究变得紧迫且具有实际意义。 This study plays a significant role in target-detection (flying missiles and aircraft above ground or sea surface with low altitude; a ship on sea surface; tank targets above ground, etc. ), resource exploration (exploration of minerals under the ground), which makes the research of composite eectromagnetic scattering urgent and practical.
13006 大多数的目标都处在粗糙地海背景中,当电磁波入射到目标时,由于粗糙背景的存在,电磁波会与粗糙背景发生相互作用,对回波造成影响,进ー步干扰目标本身的散射。 When incident wave reach a target located on a rough sea/ground background, the eectromagnetic wave will interact with the background, which affects the radar echo and the scattering properties of the target. Therefore, the existence of rough surface will increase the difficuty of target detection and recognition.
13007 随着科学技术和军事战略的发展,舰船平台将广泛采用隐身化、射频集成、集成上层建筑等新技术,以及新体制信息系统、定向能装备等新型装备,以满足对平台性能和体系作战能力的要求,由此复杂舰船平台将面临着由平台内部、编队体系内、战场强电磁脉冲等电磁环境导致的电磁环境适应性问题。 With the development of science and technology and military strategy, the equipment platform will widely adopt new technologes such as stealth and radio frequency integration, as well as new institutional information system and directed energy technologies to meet the requirements for performance and system combat capabllity. The complex equipment platform wlll face the complex electromagnetic environment effects (E3) problems formed within the platform, the information system and the battlefeld high power attack environment, lighti ng and static electricity.
13008 通过电磁计算进行复杂舰船平台电磁环境效应量化设计是实现复杂舰船系统级精确电磁设计的关键手段,是保障用频舰船适应平台内外电磁环境的有效途径。 The E3 control and quanti tati ve des i gn of the complex equpment platform through the computatonal electromagnetcs (CEM) is the key means to realVe the precise electromagnetic design of the complex platform, and it is the an effective way to ensure the ship platform adapting to the external complex electromagnetic environment.
13009 为此,本文以电磁计算在复杂舰船平台电磁环境效应数字化设计中应用与面临的挑战为主题,阐述了复杂电磁环境内涵,综合归纳了电磁计算在舰船平台领域国内外应对电磁环境效应的应用现状,深刻分析了复杂舰船平台电磁环境效应控制和电磁量化设计面临的问题及挑战等,最后提出了应对措施建议。 To this end, this paper focus on the application and challenges of CEM in the quantitative design of E3 of the complex equipment platform, and comprehensively summaries the application status of CEM in response to E3 at home and aboard. The new problems, challenges and effective suggestions by the control and quantitative design of E3 of the complex equpment platform are proposed.
13010 为了快速获取超宽带(ultra-wideband, UWB)电磁脉冲激励下雷达目标的时域电磁响应,提出了一种基于散射中心正向建模的目标时域回波仿真方法。 In order to obtain the time domain electromagnetic response of radar target excited by UWB electromagnetic pulse, this paper proposes a method of time domain echo simulation based on forward modeiing of scattering center.
13011 从目标几何模型出发,,利用空间射线分集技术对强散射源进行分离,通过模型参数正向确定方法构建出目标的属性散射中心模型,用以表征目标高频电磁散射特性,并在UWB电磁脉冲激励下进行仿真运算,获得目标时域回波信号。 Starting from the target geometric model, we use the spatial ray diversity technique to separate the strong scattering sources, and construct the target attribute scattering center model by using the model parameter forward determination method to characterise the target high frequency electromagnetic scattermg characteristics, and then the simulaton operaton is performed under the ultra—wideband (UWB) pulse excitation to obtain the target iime domain echo signal.
13012 以典型目标SLICY为例,基于正向建模的散射中心模型,快速获取不同UWB电磁脉冲激励下的雷达回波信号,与高频仿真方法得到的 ー维距离像(high resolution radar profile, HRRP)进行对比分析,吻合良好。 Taking a typical target SLICY as an example, based on the scattering center model of forward modeling, the radar echo signals under different UWB electromagnetic pulse excitation are quckly obtained, which is in good agreement with the one dimensional distance image obtai ned by high-frequency simulation method.
13013 由此验证了本文提出的回波仿真方法的有效性,为不同辐射源激励下目标的快速电磁响应研究提供了一种新思路。 The validity of the echo simulaton method proposed in this paper is verified, which provides a new idea for the research on the fast electromagnetic response of targets excited by different radiation sources.