雷達效能 的英文怎麼說

中文拼音 [léidáxiàonéng]
雷達效能 英文
radar performance
  • 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...
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 能 : 能名詞（姓氏） a surname
  • 雷達 : [訊] radar （縮自 radio detection and ranging）
  • 效能 : potency; efficacy; usefulness; effect; efficiency
  1. Thirdly, a traditional way of evaluation on effects of radar eccm based on adding model is studied. and some improvements are set up, which can make the methods more effective

    （ 3 ）研究了雷達抗干擾效能評估的傳統加權評估方法，並對該方法做了一定改進，使其更加有效。
  2. 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。
  3. 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。
  4. 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。
  5. With the development of science and tecbnology, the electronic warfare has gotten to a new stage, electronic jammers, anti - radialized missiles, superlow altitude attacks have turned into great threats confronted with radar nowadays. former single - based radar not only had difficulty in finishing expected tasks, but also the survival of itself had been a pressing problem, people have to probe into multifarious countermeasures in order to improve the viability and effective work - capacity

    隨著科技的發展，雷達電子戰發展到一個新的階段，電子干擾、反輻射導彈、低空突防和隱身武器已成為當今雷達面臨的四大威脅。傳統的有源雷達不僅很難完成預定的任務，而且自身的生存也成了緊迫問題，人們不得不積極探討各種對策，以提高雷達的生存和有效工作能力。
  6. Aiming at the self - estimation of threat to the sam system, and basing on the analysis of support distance of the target acquisition radar and operation efficiency of the system in three intercept sections, a distance - threat index and a type - threat index of the target are proposed, and a threat - estimation decision - making model is established, and a standard of fire - striking order in each section is put forward

    摘要針對地空導彈系統的威脅自動判斷問題，基於對目標指示雷達保障距離以及三種攔截區間中系統作戰效能的分析，提出了目標距離威脅指數和目標類型威脅指數的概念，進而建立了一種連續型的威脅判斷決策模型，並給出了每個區間火力打擊的排序標準。
  7. When blanket jamming is used, the more the ratio between the power of jamming and the power of signal, the less detection probability of the radar is. the effect of distributed jamming mainly depends on the total power. after distributed, the randomicity of distance and phase of jamming source bring difficulties to analysis

    對壓制式干擾來講，干信比越大，雷達的發現目標的概率就越小，由於分散式干擾的干擾效能在於其合成功率，在分散式干擾單元分佈之後，各個干擾源與被干擾對象之間的距離的不確定性，帶來了干擾信號相位的不確定性，增加了分析干擾效能的復雜度。
  8. 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 ） 。
  9. 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。
  10. 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。
  11. So it needs to study all kinds of jamming ’ s influence aiming at sar system. through the evaluating for the jamming effet, it affords warranty for the optimizing of jamming mod and jamming technique

    因此需要針對合成孔徑雷達，研究不同干擾技術對合成孔徑雷達的干擾影響，通過對干擾效能的評估，為干擾技術和干擾樣式的優化提供依據。
  12. The main contribution of this paper is that it offers the software to analyze the detection performance and the combat efficiency of radar system taking advantage of visual c + + 6. 0. the software has very well graphics visualize output interfaces. the software can be used to expediently compare the detection performance of radar in existence, calculate and compare the max range and the detection precision of different radar under varying complex environment, calculate the radar detection probability and the radar false alarm probability. some new analyzing module can be added in this software easily

    論文的主要貢獻是利用visualc + +設計了「機載火控雷達性能分析與效能評估軟體」 ，該軟體具有良好的人機交互性和圖形化形象化的輸出界面，可以方便的分析對比現有國內外機載雷達系統的檢測性能，對比不同雷達系統在各種復雜環境下的最大發現距離，計算不同雷達系統在各種復雜環境下的測量精度，以及計算雷達的檢測概率和虛警概率等參數，並且可以方便地添加新的分析模塊，進一步增加軟體的功能。
  13. This paper puts forward a method of fast, handy, no - destructive and effective testing which can be used to test the strength and geometrical dimension of subgrade abamurus using the method of earthquake wave velocity and gpr ( ground penetrating radar ). this method can be used to definite the dimension and strength of abamurus by determining some physical parameters ( such as elastic wave velocity and electromagnetic wave velocity etc, ) and by the correlation of these physical parameters with mortar flag stones

    本論文提出使用地震波速法和地質雷達法檢測路基擋墻的強度和幾何尺寸，是一種快速、簡便、無損、有效的檢測方法。此方法通過測定某些適當的物理量（如：彈性波速度、電磁波速度等） ，並通過這些物理量與漿砌片石的相關性，確定墻體的尺寸、強度等性能。
  14. Gyroklystron amplifier is a novel high - power millimeter - wave coherent radiation source. as a result of high - power capability and high - efficiency and moderate bandwidth advantages, gyroklystron amplifiers have received a great deal of attention in recent years for a variety of applications including high - power radars, electronic counter systems and the next linear collider etc. specifically in twenty years later, there was much developments on gyrotron

    迴旋速調管放大器是一種能夠在毫米波段獲得高功率、高效率及一定帶寬的新型毫米波相干輻射源，因其在高功率毫米波雷達、電子對抗、定向能武器、材料處理和加速器等領域的重要應用前景，在國際上受到了廣泛的重視。
  15. Ultra windband synthetic aperture radar ( uwb - sar ) has a broad applications because it can produce fine images of concealed targets with the capabilty of penetrating the foliage and the surface of the earth. lt has been an important sign for acquiring high - resolution images of uwb - sar for real time processing, and the efficient imaging algorithm is the pivotal and the fundation

    超寬帶合成孔徑雷達（ uwb - sar ）能夠穿透葉簇和地表實現對隱蔽目標的精細成像，有著廣泛的應用前景，高解析度uwb - sar圖像的實時獲取已成為成像雷達發展的一個重要標志，而高效成像演算法又是它的關鍵和基礎。
  16. The researches on the combat effectiveness of radarew system focus on the abilities, applications and effectiveness of radar ew equipments and systems. in order to make quantificational analyses, mathematics modeling and distributed simulation are adapted

    對雷達對抗系統作戰效能評估研究正是從定量的方面對雷達對抗裝備和系統的作戰能力、應用方式及其對抗效能進行研究，並通過數學建模和分散式模擬推演進行計算和分析。
  17. The method can describe the radar intelligence network survivability quantitatively by applying the radar coefficients, the elements ' survival probability based on some suppositions that the command level and intelligence flow in the radar intelligence network are similar to the tree structure and the elements can only belong to two states, i. e. work normally or lose efficiency wholly

    該方法利用雷達情報網在指揮層次和信息流向呈現樹型的特點，在功能單元的工作狀態上採用「工作正常、完全失效」二態模式評估模型的基礎上，運用雷達效能因子和各功能單元生存概率，給出了雷達情報網生存能力的一個量化描述。
  18. Frequency diversity technique is effective in suppressing age if the frequency interval is big enough to remove off the correlation between the pulses transmitted by radar, wide - band mmw radar can satisfy the requirement but conventional microwave radar can t

    頻率分集技術抑制目標角閃爍的有效性，取決于去除脈間相關性的性能，即要求雷達發射信號必須有較大的頻率間隔，寬帶毫米波雷達正好滿足了這一常規微波雷達不能滿足的要求。
  19. Synthetic aperture radar ( sar ) has been widely used in both military affairs and civilian fields because of its high - resolution, independence of both time and weather conditions, etc. usually, sar could only be used to detect and image static targets instead of moving targets for the reason that the position drifting will make local mistake in the general sar image, which is usually caused by the velocity of the moving targets in the ground range direction, and when it comes to the target with strong scatter coefficient right in the drifting position, the moving target could not be detected at all

    合成孔徑雷達（ sar ）由於其高解析度、全天時、全天候等優良性能，已經在軍事和民用領域得到越來越廣泛的應用。通常，合成孔徑雷達只能對靜止目標進行檢測和成像，動目標由於其徑向速度而在常規sar圖像中有一個位置偏移，使成像造成局部錯誤，而且當偏移處有強散射目標時，動目標將無法檢測。軍事上的應用也要求合成孔徑雷達能對運動目標進行有效地檢測和成像，因而運動目標檢測（ mti ）及其成像日益成為合成孔徑雷達領域研究的一個熱點。
  20. With its widely application in precise guided weapons, the performance of whole weapon system is sharply improved by the complementarities of active and passive radar system

    主被動雷達復合制導技術在精確制導武器上的應用，充分利用主被動雷達性能互補特點，並能兼顧導引頭系統的戰術性能、設計復雜度和費用等方面的平衡，提高了武器系統的效能。
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