雷達地標 的英文怎麼說

中文拼音 [léidádebiāo]
雷達地標 英文
radar check point
  • 雷 : 1. （雲層放電時發出的響聲） thunder 2. （軍事上用的爆炸武器） mine 3. （姓氏） a surname
  • 達 : Ⅰ動詞1 （暢通） extend 2 （達到） reach; attain; amount to 3 （通曉; 明白） understand thoroughly...
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 雷達 : [訊] radar （縮自 radio detection and ranging）
  1. Different from detecting space of land - based radar which has relative unchangabledetection space, aew radar ’ s detecting space changes with the carrier ' s patrol line. what ’ smore, because of both movements of carrier and targets, aew radar will detect targets whichwere out of its coverage

    地基雷達的探測空間是相對固定的，而機載預警雷達的探測范圍隨載機航線的變化而變化;由於載機和目標同時都在運動，使得某一時刻在載機探測范圍之外的目標也可能在後來的飛行過程中被探測到。
  2. The works of this paper are mainly about the study for ultra wide - band ( uwb ) signal radiating - designing for effective uwb antenna, and uwb signal scattering - investigating of composite scattering for targets upon ground. firstly, the radiating characters of uwb signal and development of uwb antenna are discussed an uwb planar horn antenna is designed this antenna is characterized with u - balun, simple construction and perfect performance

    本文的研究是「九五」國防預研「超寬帶（ uwb ）雷達體制及關鍵技術研究」項目工作的一部分，主要包括兩方面內容：超寬帶信號的輻射-高效超寬帶天線的研製；超寬帶信號的散射-地表目標的復合散射研究。
  3. On data level, it is firstly explored fusing signature data from sparse - band collocated radars to obtain wider band target frequency response. the most difficult problem which restricts the fusion process is the lack of mutual coherence between the various radar subbands

    在數據層，首先探索了對多個配置在同一地方的不同頻帶雷達測得的目標頻率響應進行融合，以獲取更寬頻帶目標頻率響應的方法。
  4. Effects of radar eccm are important indexes to judge radar eccm and the characteristic of eccm equipment. it has great practical significant for both radar and jammer to evaluate eccm effects properly, objectively and easily

    雷達抗干擾效果是衡量雷達對抗中抗干擾措施是否有效和雷達設備性能優劣的重要指標，如何準確、客觀、快捷地評估雷達抗干擾效果，對雷達、干擾雙方均具有重要的現實意義。
  5. So the realization of target detection on the condition of moving platform becomes one of the key techniques which must be solved in the development of hf sswothr

    因此，如何實現在平臺運動條件下的目標檢測，就成了研製高頻地波艦載oth雷達必須解決的重要關鍵技術之一。
  6. In order to obtain the complex rcs of the target quickly in high frequency band, the graphical electromagnetic computing software, greco, is used. the modification of the computing kernel code is presented. the judgement of edges of complex targets is more sufficient and the computation of edge wave based on physical theory of diffraction ( ptd ) is more exact after the modification

    為了可以準確地預估雷達目標的rcs ，我們對于航天部207所的圖形電磁計算軟體（ greco ）進行了進一步的開發與包裝，用borland公司的c + + builder開發了更加易於使用的基於windows操作系統的新版greco ，並且在考察了原有的greco計算內核之後，結合計算機圖形學方面的理論，對greco的內核代碼進行了改進，整體上使得邊緣繞射場的計算結果更加準確。
  7. In addition to the conventional techniques such as low sidelobe antennas and displaced phased center antenna ( dpca ), there has been great interest in space - time adaptive processing ( stap ) because it can suppress clutter effectively and improve the detection performance of airborne phased array radar evidently

    除了採用低副瓣天線、偏置天線相位中心（ dpca ）等傳統雜波抑制技術，能夠有效提高機載相控陣雷達地雜波抑制能力和動目標檢測性能的空時二維自適應處理（ stap ）受到了廣泛關注。
  8. With the application of hfswr in national defense, people focus the investigation of the methods of target identification in high frequency section

    隨著高頻地波雷達在國防工業上的應用越來越受到重視，對于高頻段雷達目標識別方法的研究也成為人們研究的重點。
  9. High - resolution multi - source direction finding is always a hot research area in array signal processing. the breakthrough of this technique is greatly meaningful in many research fields such as sonar, radar, communication, biomedical engineering, geology and so on

    陣列處理的高分辨技術一直是國內外十分關注的研究熱點，其中高分辨多目標定向技術是國內外集中力量研究的重點，該項技術的突破對聲納、雷達、地質勘探、生物醫學工程及水中兵器均有重要意義。
  10. For slow targets whose doppler frequencies fall into clutter doppler band, the performance of frequency domain one - dimension filtering is seriously degraded. in an airborne radar, there is interdependence between the clutter doppler frequency and spatial position. space - time adaptive processing ( stap ) utilizes this interdependence to suppress clutter and get perfect main - lobe and side - lobe clutter suppression

    空時自適應處理利用機載雷達地雜波多普勒頻率與地雜波空間位置的耦合性，根據目標和雜波在空間-多普勒頻域二維空間分佈上的差別對雜波進行抑制。
  11. First in this paper, we review the development of radar signal processing and cfar detector, analyse the structure and principle of the signal processor, ca - cfar and os - cfar detectors. then, in view of the characteristic of prc cw signal, analyses the statistics characteristic of scattering bodies, models of target, noise, ground - clutter and weather - clutter are made. these lay a theoretic foundation of signal processing and cfar detector

    然後，本文針對x波段偽隨機m序列相位編碼連續波信號體制，分析了各種散射體的統計特性，對雷達目標及檢測背景噪聲（熱噪聲、地雜波和氣象雜波）進行了理論分析和統計檢驗，建立了目標及檢測背景的目標模型，確立了信號處理和恆虛警檢測的理論基礎。
  12. Studied the cluster and background reduction algorithm and, proposed an enhanced adaptive step average method based on the amplitude of a - scan signal ; 2. improved the gpr data acquisition and processing software, some utilities have been added such as position wheel control program, data format translation etc. ; 3. implemented 3d targets imaging using mixed programming of matlab and visual c + + ; 4

    本文的主要工作如下: 1 .研究了探地雷達回波信號雜波及背景去除演算法，改進了一種基於a - scan信號強度的自適應滑動平均法; 2 .改進並完善了探地雷達數據採集處理軟體，加入了定位輪控制數據採集、數據格式轉換、目標距離測定等程序; 3 .研究了探地雷達目標成像演算法，利用動態鏈接庫技術實現了在脫離matlab環境下在visualc + +編寫的程序中調用matlab程序對目標進行三維成像的功能; 4 .參加外場實驗及項目驗收。
  13. In order to simulate the return, a radar coherent video echo model is used to simulate target echo, clutter and noise separately. then the three parts which are in the same range cell are added together to form a matrix to represent return in one radar coherent processing interval ( cpi ). this matrix is called a frame of range doppler data

    為了較為全面地對雷達回波進行模擬，採用相干視頻回波模型分別模擬雷達目標回波、雜波和噪聲，通過在距離單元內疊加的方法，將一個雷達相干處理周期內的回波數據用一幀距離多普勒平面數據表示。
  14. 2 ) we analyse the locomotion equation, trajectory parameter, trajectory ellipse parameter, average angel velocity formula under the condition that we only think about the g - force. we ascertain the relationship of the target place and the moving velocity and flying time by keplei equation, and ascertain the trajectory and the data of the place target landing, finally we analyse the effect on the target trajectory and landing from the earth ' s rotation itself

    （ 2 ）分析了在只考慮地球引力情況下的雷達目標運動方程、軌道面參數、軌道橢圓參數、平均角速度公式;通過迭代求解開普勒方程確定了目標位置、目標運動狀態和飛行時間的關系;確定了雷達目標的軌道、落點數據;最後，分析了地球自轉對目標的軌道和落點的影響。
  15. At first, the fundamental theories and realization methods of main parts of high purity frequency source in x band object simulator of vehicle - carried phased - array radar, such as phase - locked - loop, step recovery frequency multiplier, dielectric band - pass filter and micro strip band - pass filter are introduced in detail in this paper

    本文一開始洲門針對機載相控陣雷達目標模擬器中的高純本振源的實現，詳細地介紹了瑣相環、階躍管倍頻器、介質帶通濾波器和微波帶通濾波器的基本原理及其實現方法。
  16. Furthermore, the principle and implementation of radar tragets simulator, which is operated under passive conditions, are discussed

    最後還闡述了雷達地面被動試驗環境下的目標模擬器的工作原理與實現方法。
  17. This dissertation investigated the problem for simulation of sar raw signal, focusing on the terrain - echo simulation and the product of echo data. we also discussed the influences of typical errors for the point target model and got the more real echo of point target model

    本文圍繞sar原始信號模擬展開研究，討論合成孔徑雷達地面回波的產生，產生回波數據，並針對點目標分析了影響回波的幾種典型誤差，得到了更為真實的點目標回波。
  18. Conventional airborne radar clutter suppression techniques utilize the diffrernce in doppler frequency domain between clutter and target returns to suppress clutter. doppler frequency domain one - dimension adaptive filtering, which usually used in main lobe clutter suppression

    傳統的機載雷達地雜波抑制方法採用多普勒頻域一維自適應濾波，即利用雜波和目標信號回波在多普勒頻域上的差別對雜波進行抑制。
  19. To solve the problems that have slow velocity, poor precision, lower efficiency for the traditionally artificial command guidance in the current flight test method for the airborne radar of the target formation so that the current flight test method for the airborne radar doesn ' t meet the requirement of flight test, the basic whole direction guidance way and so on, the main function setting and model structure of the automatical command guidance of the target formation flight test for the airborne radar were introduced, the mathematical models for the automatical command guidance of the multi - target formation flight test were built and they were realized and verified on the research and manufacturing of the flight test automatical command guidance based on the ground radar and gps

    針對戰斗機雷達目標編隊傳統的人工指揮引導速度慢、精度差、效率低，導致現有試飛手段滿足不了試飛需求的問題，介紹了機載雷達目標編隊試飛自動化指揮引導的基本全向引導法等方法、主要功能設置和模塊體系結構，建立了機載雷達目標編隊試飛自動化指揮引導實現模型，並在基於地面雷達和gps試飛指揮引導自動化系統研製中得到實現和驗證。
  20. And the principal contribution of this dissertation is summarized here. chapter 2 analyzes the characteristic of sar signal of moving targets theoretically

    本文正是從這一點入手討論了一種合成孔徑雷達地面動目標指示（ syntheticapertureradar groundmovingtargetindication ， sar gmti ）方法。
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