雷必達 的英文怎麼說

中文拼音 [léibìdá]
雷必達 英文
marcus aemilius lepidus （triumvir）
  • 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
  • 必 : Ⅰ副詞（必定; 必然） certainly; necessarily; surely Ⅱ動詞（必須; 一定要） have to; must Ⅲ名詞（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...
  1. The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time. in order to improve the communication quality of the shortwave that depends on the ionosphere, we should have aknowledge of the current condition of the ionosphere in real time. the backscatter sounding of high frequency can diagnose the real - time channel characters for shortwave communication or hf radar, which is great assistant to shortwave communication and hf radar

    電離層是隨機時變，各向異性，非均勻、色散的復雜介質。為了保證依賴于電離層進行的短波通信質量，必須了解電離層的實時狀態信息。高頻返回散射探測可以實時監測與短波通信或高頻天波雷達相關的天波傳播通道的狀態，對短波通信和天波雷達工作起了重要的輔助作用。
  2. Imo has passed stcw78 / 95 and emphasized eligibility evaluation and regarded training on radar and arpa as compulsion speciality training item that every seaman must attend. it called for making marine training and eligibility evaluation in simulator that imo approbatory, so researching on radar simulator is important. now on radar simulator we usually make radar mark by hand

    為此國際海事組織（ imo ）通過了《 stcw78 95公約》 ，特別強調了海員的「適任性評估」的作用與要求，將雷達與arpa培訓作為船舶駕駛員必須參加的強制性專業培訓項目，同時要求應用imo認可的模擬器進行海運培訓和適任性評估，因而雷達模擬器的研究具有重要的意義。
  3. So it is necessary to study the driving structure and control scheme of new system radar in order to track continuously in whole hemisphere without blind zone

    因此，研究新體制的三軸雷達的驅動結構及控制方案以實現大於半球的全空域無縫隙連續跟蹤就變得十分必要。
  4. It is necessary for elint system and esm system to have the ability to analyze and process all kinds of special radar signals quickly and correctly in order to meet the requirement of the electronic war in the future

    現代電子情報偵察系統和電子支援系統要適應現在和未來的電子戰信號環境，必須具備快速分析、實時或準實時處理各種特殊雷達信號的能力。
  5. Based on the theory of radar, the essentiality of lfm signal was discussed

    首先從雷達的基本理論出發，討論了採用線性調頻信號的必要性。
  6. On the basis of introducing the principle of the tf / ar radar, this paper analyzes the conditions of effectively jamming the tf / ar radar in typical tactical act of hedgehopping, which include the disposition and quantity of electron reconnaissance / jammer, calculates the capability request of equipments in the method of sensor / hand - emplaced jammer, and concludes that it is difficult to jam tf / ar radar at the present time

    摘要在介紹地形跟隨迴避雷達工作原理的基礎上，通過設定典型超低空突防飛機的戰術行動，分析了對雷達實施有效干擾所必須具備的條件，包括偵察干擾機的部署、數量要求等；並計算了在傳感器擺放（投擲）式干擾機模式下對裝備的性能要求，得出了在目前技術條件下，對地形跟隨迴避雷達實施干擾在技術和戰術上都是困難的。
  7. 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。
  8. It is of necessity to research non - cooperative bistatic radar to enhance the performance of radar fence

    為了提高整個雷達網的性能，有必要重點研究非合作式雙基雷達。
  9. Because of the presence of the first - order sea echoes with dominant amplitude, the doppler resolution technique which based on the range - velocity transformation is needed to extract the targets information in hf radar

    高頻雷達工作在擁擠的短波波段，由於絕對占優的一階海浪回波的存在，必須採用基於距離?速度譜變換的多普勒頻率分辨技術來處理雜波，以提取目標信息。
  10. Thereinto, the correction of attenuation is a big problem in millimeter - wave cloud radar detection

    但是，毫米波雲雷達探測，必須考慮的問題之一是大氣衰減訂正。
  11. The build - up was neat, florent malouda to drogba, and drogba back again to malouda, and the frenchman ' s cross was fine, but quite how emiliano oretti, the defender, came to be blind - sided by joe cole is a question no doubt quique s nchez flores, the coach, was asking his argentine left back at half - time

    整個過程很流暢，馬魯達傳給德羅巴，德羅巴回傳給馬魯達；法國人的傳球不錯，但瓦侖教練輻拉雷斯必定更想問一問自己的阿根廷左後衛艾米里亞諾?莫雷蒂，當時為什麼會被喬?科爾突襲成功。
  12. Main conclusions drawn from the analyses of calculating results are as follows : ( 1 ) the microwave absorption of atmosphere gas have obvious attenuation at the wavelengths for cloud detection, thereinto, the water attenuation effect changes greatly, so the 94ghz cloud detecting radar should have water vapor attenuation correction scheme. ( 2 ) when 37ghz and 94ghz radars detect clouds, the difference between the atmosphere and cloud attenuation and the large variety of radar reflectivity conduce the intension of the radar backscatter signals change. ( 3 ) for the thin cloud layer and low water content of cloud, 37 - ghz radar backscatter signals are not as good as 94 - ghz radar, that is to say that the 94ghz radar has better capability in thin clouds detection

    本工作得出如下結論： （ 1 ）大氣氣體的微波吸收在測雲波段產生明顯的衰減，其中水汽衰減效應變化很大；即將上天的空間94ghz測雲雷達必須有水汽衰減訂正方案； （ 2 ） 37ghz和94ghz雷達測雲，由於大氣和雲衰減不同和雷達反射率的很大差異，導致雷達回波信號強弱不同； （ 3 ）對雲層較薄、含水量較少的雲，在不計雷達參數的情況下， 37ghz雷達回波信號不如94ghz測雲雷達，也就是說94ghz對薄雲有更強的探測能力；對雲層較厚、含水量大的雲，由於強衰減的作用， 94ghz雷達回波信號小於37ghz雷達； （ 4 ）從大氣衰減的不利因素方面考慮，空間94ghz雷達測高層薄雲的效果最好；測低層薄雲時需要考慮氣體衰減訂正；因濃厚雲的強衰減作用，探測其中下部的能力大大減弱，不僅要進行衰減訂正，而且要藉助其他信息來反演整個雲層的含水量垂直分佈； （ 5 ）為了獲得從極薄到極濃厚雲的垂直分佈探測能力，未來測雲雷達系統最好採用雙波長甚至三波長（如94 、 37和13ghz ） 。
  13. The data compression technique is an essential one of synthetic aperture radar ( sar )

    數據壓縮技術是合成孔徑雷達（ sar ）必須具備的關鍵技術之一。
  14. 3. after studying deeply the multi - antenna sar mtdi based on displaced phase center antenna ( dpca ), a new double - antenna method is proposed which remedies the shortcomings of conventional ways. the method need n ' t meet the constraint condition that conventional ways must meet and can suppress ground clutter effectively and detect moving target

    針對常規dpca方法的缺點創新性的提出了一種新的雙天線動目標檢測方法，建立了該方法的檢測模型並對該方法進行了有效的驗證，該方法不合成孔什雷達動口標檢測和成像研必滿足常規方法所必須滿足的限制條件就能夠進行動目標檢測，提高了dpca的實用價值。
  15. I think it ' s a good way to celebrate our home record in a day where i have to go home and sit and remember every player that helped us to achieve this record because some of them are not here with us and i want to remember all of them, gudjohnsen, geremi, duff, all these guys that had a good participation in this fantastic record

    「我想這是個很好的慶祝我們打破主場記錄的方式，我必須回家去，坐下來想想幫助我們得到這個記錄的每個球員，因為其中的一些球員已經不在這里了，我想記住他們全部? ?古德約翰森，格雷米，達夫，所有這些小夥子都在這個偉大的記錄中有著自己的貢獻。 」
  16. Abstract : the effects of airfoil geometric parameters on wing " s spacial and polarized scattering characteristics have been systematically revealed. the results of the study indicated that the calculating value of diffraction from trailing edge by using the formula of the straight wedge is very far from experimental results for vertical polarization, and the contribution of thickness of the trailing edge to scattering must be considered in the calculation. the scattering peak of leading edge depends only on radius of airfoil for horizontal polarization. but for vertical polarization, it depends on maximum thickness and the location of maximum thickness. engineering formulas for evaluating all scattering peaks were given in the paper. it is important for the design of low - rcs wing

    文摘:系統地揭示了翼形幾何參數對機翼的空間散射特性、極化散射特性的影響規律.研究發現，在垂直極化狀態下用理論尖劈公式計算機翼后緣繞射的計算結果與實驗結果相差甚遠.提出在垂直極化狀態下機翼后緣繞射的計算必須將后緣厚度考慮在內的見解.對於水平極化，前緣散射波峰只與前緣半徑有關；而對於垂直極化，前緣散射波峰與翼形最大厚度以及最大厚度位置有關.給出前後緣散射波峰的工程估算公式，為低雷達散射截面（ rcs ）機翼設計提供依據
  17. The key to the settlement of the question of effective detection of ground and low air targets lies in adaptive of effective clutter suppression in airborne radar

    因此，有效地抑制這種時間非平穩和空間非平均的雜波干擾是雷達系統有效完成地面目標和低空飛行目標檢測必須解決的首要問題。
  18. Bsr confronts with complicated clutter circumstance, it ' s the most important thing we must do to restrain clutter not smooth in time domain or frequency domain in order to detect interesting targets of mainland and sea level

    機載戰場偵察雷達面臨的雜波環境是很復雜的，有效地抑制時間非平穩和空間非平穩的雜波干擾是雷達系統完成地面目標、海洋目標以及低空目標檢測必須首要解決的問題。
  19. Ground - air guidance radars are becoming more and more advanced, for the development of electronic reconnaissance and interference technology

    隨著電子偵察和干擾技術的不斷提高，為適應現代戰爭，地空制導雷達必須不斷發展。
  20. Most modern radars are a high resolution system, which uses amplitude and phase information to achieve main function. in order to evaluate the performance of a radar, the radar simulator, as an important part of a radar verifying system, must possess good characteristics, and its output signal must have high stability and accuracy

    雷達模擬器作為驗證雷達性能的重要設備它的研製與開發也成為我軍裝備現代化的重要課題。為了逼真的模擬實戰情況，雷達模擬器必須提供穩定的大動態、高精度的信號。
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