雷達學 的英文怎麼說

中文拼音 [léidáxué]
雷達學 英文
radiolocation
  • 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...
  • 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
  • 雷達 : [訊] radar （縮自 radio detection and ranging）
  1. Given the abilities of generating all kinds of ideal and not ideal signals, it has been widely used in the domains of communication, radar, navigation and astronavigation

    它可以產生各種理想及非理想的波形信號，是電子工程師、生產線以及教學科研的重要測試設備，廣泛用於通信、雷達、導航、宇航等領域。
  2. Fourthly, the theory about fuzzy mathematics is applied to the evaluation on effects of radar eccm, and the fuzzy synthetic models are founded to evaluate effects of radar eccm. using the models, computer experiments are made to testify the feasibility of the methods above

    （ 4 ）建立了雷達抗干擾效果評估的模糊綜合評估數學模型，重點針對單部雷達對抗單部干擾機的情況，進行了計算機模擬實驗，驗證了該方法的可行性。
  3. Radar imaging is an epoch - making achievement in modern exploration science. it made the basal function of radar entitative changed, and it radically enlarged human ’ s ability of observing the nature and the living space

    雷達成像是現代探測科學領域的一項劃時代成就，它使雷達的基本功能發生了質的變化，從根本上擴展了人類觀察自然界和生存環境的能力。
  4. Captain jack sparrow johnny depp discovers he owes a blood debt to the legendary davey jones, captain of the ghostly flying dutchman

    阿歷斯雷達阿歷斯彼迪化飾本是一個普通的中學生，但? .
  5. Scientists at nasa ' s jet propul - sion laboratory in pasadena, california, collected the data using the facility ' s goldstone solar system radar

    該數據是利用美國國家航空航天局噴氣推進實驗室的金石太陽系雷達收集的，月球南極的地形比科學家們之前預想的要更加崎嶇不平。
  6. Mixers are the key components of many microwave and millimeter - wave systems. the super - heterodyne receiver is always applied in modern communication system, mixer becomes the key component as is at the first part of system. but it is more and more difficult to get the choiceness lo source of the same band with the system is working at high frequency especially in the millimeter - wave. sub - harmonic mixer is a good solution to this problem now. in this circuit we need just half 、 quarter 、 even 1 / 8 of the rf signal frequency. in this paper the design and fabricate of sub - harmonic hmic mixers ( 2, 4 ) at w - band are introduced

    混頻器是微波通信、射電天文學、雷達、等離子物理、遙控、遙感、電子對抗，以及許多微波測量系統中至關重要的部件。在現代通信系統中，毫米波頻段通常採用超外差接收機，混頻器作為第一級就成為關鍵部件。由於在毫米波頻段，同頻段高性能的本振源成本高，技術難度大，採用分諧波混頻技術是解決此問題的有效途徑，只需射頻頻率1 / 2 、 1 / 4甚至1 / 8的本振頻率即可實現混頻。
  7. The development of microwave radar during the world war ii also had immense consequences for solid-state physics.

    第二次世界大戰期間，微波雷達的發展對固體物理學也產生了巨大影響。
  8. The expressions of imaging models and the method of imaging are gained. the problem of the time domain walk compensation and picture mistiness are discussed

    通過數學推導得出了合成孔徑雷達成像處理模型的表達式及成像的方法和步驟。
  9. Radar and other inventions were the work of "boffins".

    雷達以及其它種種發明都是科學工作者們的成果。
  10. The technique has been highly successful in radio astronomy, and in both satellite and aircraft borne radar

    該技術在射電天文學、衛星雷達和機載雷達上均獲得了巨大成功。
  11. C. l. chen, c. j. pan ： semidiurnal behavior of quasi - periodic echoes in the mid - altitude es region with the chung - li vhf radar, agu 2000 fall meeting, san francisco, california, dec 15 - 19, 2000

    陳中亮、蔡雯君、潘貞傑：中壢特高頻雷達對電離層散塊e層不規則體的觀測與研究， 2002地球系統科學研討會， 20026 / 3 - 4
  12. Inverse aperture radar ( isar ) can image non - cooperative moving targets such as aircrafts, ships and celestial objects over a long distance under all weather and all day. it is of particular interest for strategic defense, anti - submarine warfare and radar astronomy

    逆合成孔徑雷達（ isar ）能夠對飛機、艦艇、天體等非合作運動目標進行全天時、全天候、遠距離成像，在戰略防禦、反衛星、戰術武器以及雷達天文學中都有重要應用價值。
  13. 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。
  14. It was the first trial to employ the newly equipped migration data acquisition and analysis system for the scanning entomological radar and, a twin light - trap developed in china for, systematic long - term observations of migration of the beet armyworm spodoptera exigua, beet webworm loxostege sticticalis and cotton bollworm helicoverpa armigera in northern china the study provided direct evidence for the migration of 5 ". exigua in china, many parameters of migratory behaviour of the three species of insects, a better understanding of the relationship between migratory behaviour and wind or temperature field. the results enriched the theory of migration and provided new scientific knowledge for pest management in china

    本研究初步闡明了我國華北地區空中昆蟲群落結構，首次使用我國自行研製的掃描昆蟲雷達的數字化數據採集及分析系統，及價廉、高效的姊妹燈誘蟲法對華北地區甜菜夜蛾spodopteraexigua 、草地螟loxostegesticticalis和棉鈴蟲helicoverpaarmigera的遷飛進行了長期系統地觀測，得到了甜菜夜蛾在我國北方遷飛的直接證據，三種害蟲遷飛行為的若干參數，認識了昆蟲遷飛行為與風溫場的關系，豐富了昆蟲遷飛理論，為我國害蟲的治理提供了科學依據。
  15. Development of multimedia radar teaching system with authorware

    開發雷達產品多媒體教學系統
  16. Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation

    在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。
  17. Othr ( over - the - horizon radar ) is a kind of hf ( high frequency ) radar with great expectation, which has arisen great concern worldwide because of its large coverage, anti - stealth character and so on

    超視距雷達（ othr ）是一種具有較大發展前景的高頻雷達，以其覆蓋距離遠、覆蓋面積大和抗隱身等優良特點受到各國學者的廣泛關注。
  18. Journal of air force radar academy

    空軍雷達學院學報
  19. The study, by choosing 1200 cadets from air force radar academy as the objects of study, using epq personality questionnaires, social support evaluation chart and coping ways questionnaires as the measuring tools and conducting statistical analysis by means of spss 10. 0 and lisrel8. 3, discloses the interrelation among the military cadets personality tendency, social support and choices of coping ways and checks the hypothetical models by ways of sem

    本研究以空軍雷達學院的1220名學員為研究對象，以《 epq人格問卷》 、 《社會支持評定量表》 、 《應付方式問卷》為測量工具，運用spss10 . 0和lisrel8 . 3進行統計分析，揭示了軍校學員人格傾向、社會支持、應付方式選擇三者之間的關系，用結構方程模型（ sem ）的方法驗證了假設模型。
  20. Radar ? increase survivability values, production resources and air combat values of some units, and resources

    雷達學：增加部隊倖存值，資源生產能力和空軍空戰能力。
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