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phased-array
相关语句
  相控阵
     Analysis on Anti-jamming Ability of AN/FPS-115 Phased-array Radar
     AN/FPS-115相控阵雷达抗干扰能力分析
短句来源
     Application of α-β Filter in Tracking Maneuvering Target Using Phased-array Radar
     α-β滤波器在相控阵雷达机动目标跟踪中的应用
短句来源
     Study on the Ferroelectric Material BST Used in the Phase Shifter of Phased-array Radar
     相控阵雷达铁电移相器BST材料研究
短句来源
     Waveform Design for Phased-Array PD Radar
     相控阵机载PD雷达的波形设计问题
短句来源
     To the AN/FPS-115 long-distance phased-array radar,the author carries on the computation of effectiveness parameters using the most commonly used system effectiveness analysis model at present,gains its system effectiveness value.
     对AN/FPS-115型远程相控阵雷达,运用目前最常用的系统效能分析模型对其进行效能参数计算,得出该型号雷达系统效能值。
短句来源
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  “phased-array”译为未确定词的双语例句
     The technique for soldering ceramic microwave circuit substrate(Al 2O 3) and titanium carrier which are used in T/R module for phased-array radar is described.
     介绍了某雷达T/R组件上用作接地散热金属板的钛板与以Al2 O3陶瓷为基板的电路板间的软钎焊技术。
短句来源
     Furthermore,quantitative calculation shows that compared with single source case,the SNR of reflected wave for 12-unit phased-array source increases by 19.25dB average- ly;
     通过定量计算,用12单元的相控震源地震与单震源情况相比,反射波信噪比平均提高了19.25 dB;
短句来源
     4. Chooses PC-Σ△-STAP method as the study object for airborne phased-array fire-control realtime processing radar system with these methods’characteristics.
     4.根据对这些方法的分析及仿真选择了一种适合于机载火控相控雷达用的杂 波抑制的方案, PC-Σ△-STAP 方案,作为实时杂波抑制的方案来研究。
短句来源
     Study on Seismic Beam-forming Method Based on Phased-array Vibrator System
     基于相控震源的地震波定向方法研究
短句来源
     ANALYSIS OF FOCAL FIELD OF PHASED-ARRAY WAVEGUIDE GRATING MULTI/DEMULTIPLEXER
     阵列波导光栅复用/解复用器焦场的数值分析
短句来源
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  相似匹配句对
     MICTechnology for Phased Arrays
     相控阵的微波集成电路技术
短句来源
     "Phased Arrays ’85"
     1985年相控阵会议论文介绍
短句来源
     Phased-Array and Radar Breakthroughs
     相控阵和雷达技术的突破(英文)
短句来源
     Difficulties in Construction and Phased Acceptance '2002
     2002年三峡工程建设难度和阶段验收
短句来源
     c) The phased problems in the transformation of economic growth;
     在此,我们提出五个问题加以讨论。
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  phased-array
After welding, pores are sought with X-ray detection, phased-array ultrasonic (US) detection, and destructive control.
      
In the design of flat-field AWG, three stigmatic points restrain three dominant geometry parameters: geometry of star couplers, ports distribution of phased-array, and length increment between adjacent paths.
      
Each pixel is a phased-array of slot dipole antenna whose output power is coupled to MKIDs via in-line color-defining bandpass filters.
      
The proposed true-time-delay unit with 5-element phased array steerer is suitable for phased-array antenna beamforming at frequencies up to 12 GHz.
      
Tunable Chirped Fiber Grating Based Variable Time-Delay Network for Phased-Array Antenna Beamforming
      
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The paper includes two parts. The first part is a theoretical part, in which the characteristics of holography as applied to detection is discussed, and the notion of "detecting holography" is proposed. The principal difficulty encountered in applying elastic or electromagnetic waves to the earth media is the poor longitudinal resolution of monochromatic holography. Prom the viewpoint of the communication theory and the antenna array theory, the monochromatic holography is examined, and its relations to correlation...

The paper includes two parts. The first part is a theoretical part, in which the characteristics of holography as applied to detection is discussed, and the notion of "detecting holography" is proposed. The principal difficulty encountered in applying elastic or electromagnetic waves to the earth media is the poor longitudinal resolution of monochromatic holography. Prom the viewpoint of the communication theory and the antenna array theory, the monochromatic holography is examined, and its relations to correlation detection, matched filters as well as phased array anteenas are illustrated. Multifrequency synthetic detective holography is developed as a possible approach to the solution of longitudinal resolution problem. Its principles are discussed, its relations to the "impulse holography" and the formulas for the longitudinal resolution are deduced. Finally, examples of two-dimensional computer simulation are presented to illustrate the feasibility of the method.The second part is an account of experiments made in water-tank for the microwave multifrequency synthetic detecting holography. The results of computer reconstruction using interference-type holograms give evidence to prove the high resolution and good imaging quality of the method.

本文分两个部分。第一部分从理论上探讨了全息成象应用于探测时的特点,提出了“全息探测成象”的概念。指出对地层介质使用弹性波或电磁波时,关键问题是纵向分辨力低。作者从信息论和天线阵理论的观点探讨了单频全息成象,研究全息成象和相关检测、匹配滤波以及相控阵之间的联系,提出了多频合成全息探测成象作为解决纵向分辨力的一个方法。探讨了它的原理,指出了它和“脉冲全息成象”的关系,导出了纵向分辨力公式,并给出了二维理论模型计算的结果,以说明方法的可行性和应用前景。 第二部分为实验部分,叙述了多频合成微波全息探测成象的试验。采用二维干涉型全息图做了简单模型的水槽试验,由计算机成象的结果证实了多频合成法的高分辨力和良好的成象质量。

"Blind spots" is a well known phenomena occuring in the operation of the phased array "blind spots" means total reflection of input power Either of two conditions leads to total reflection, null of the radiation resistance or infinity of the admittance. This paper is to investigate these conditions. Through detail mathematical analysis, it is concluded that the null of the radiation is the only reason to cause total reflection i.e. ''blind spots" . Besides, approximate conditions for existence of the null of...

"Blind spots" is a well known phenomena occuring in the operation of the phased array "blind spots" means total reflection of input power Either of two conditions leads to total reflection, null of the radiation resistance or infinity of the admittance. This paper is to investigate these conditions. Through detail mathematical analysis, it is concluded that the null of the radiation is the only reason to cause total reflection i.e. ''blind spots" . Besides, approximate conditions for existence of the null of the radiation resistance are give. We have also obtained some results different from those published in foreign literatures.

本文利用积分方程近似解方法,对平面相控阵天线的“盲点”进行了分析。分析结果表明,产生“盲点”(假如确实存在的话)是由于天线输入电导趋于零所致。文章还对国外文献的提法提出了不同的看法。最后本文还分析了天线输入电导趋于零所需要的一些条件。

By adjusting phase setting in phase shifters, sidelobe level of the pattern of phased array antenna can be reduced. Such is the phase weighting method d?scribed in the paper. Its basic concepts and theoretical analysis have been described and comparison has been made with density-weigh ting method. Also two examples have been given.

本文提出了降低相控阵天线副瓣电平的一种方法——相位加权法。它仅需在数字移相器上改变单元的相位,来降低天线副瓣电平,不必采用密度加权。文中给出了降低副瓣电平的基本思想和理论分析,并与密度加权做了比较。最后给出了两个算例。

 
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