高能射頻 的英文怎麼說

中文拼音 [gāonéngshèbīn]
高能射頻 英文
herf
  • 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
  • 能 : 能名詞（姓氏） a surname
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 高能 : high energy高能等離子體 energetic plasma; 高能點火 [航空] high energy ignition; 高能電池（組） hi...
  1. 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。
  2. With the established rf front - end system simulation platform, adding the digital modulated baseband signal, this paper simulated the multifold digital modulated signal ’ s transmission, such as 2ask, qpsk, and 16qam. then researches of power compression and phase noise of local oscillation influence the bit error ratio for different modulated system. the designing is satisfied multifold functions request with the high - powered and integrated broadband rf front - end

    隨后在建立的寬帶射頻前端通用模擬平臺上，加入基帶數字調制信號，對多種數字調制格式的信號在該通用平臺上的傳輸作了研究，模擬了2ask 、 qpsk和16qam等調制格式信號的發射與接收，研究了功率壓縮和本振相位噪聲對不同調制的誤碼率影響，實現了滿足多種功能要求的寬帶高性能綜合射頻前端的設計。
  3. In this paper, we design a new film stack by use of multi - frequency design idea, which decrease the film thickness of high refraction layers greatly, and the damage threshold of it will be improved hopefully. and at the base of this film stack, by optimizing the film thickness of several outmost layers, we design the hr film at 45 incidence for 632. 8nm and 1315nm with 180 ? or 90 phase retardance at 1315nm

    隨著高功率coil輸出功率的進一步提高，傳統的設計膜系已逐漸不能滿足需要，為此我們利用倍頻的沒計思想，設計出了一種新的高反射膜系，與傳統的設計膜系相比，此膜系大大降低了高折射率層的厚度，使得膜系的損傷閩值有望得到極大提高。
  4. The button electrode is one that widely used in high energy rf accelerators, such as storage ring, and the bpm made of button electrodes has many merits like high accuracy, high resolution, resisting magnetic field, simple machinery, without magnetic core and low cost, etc. so we want to use the button electrode as the bpm in high current accelerators like the lia

    鈕扣電極束位置探測器是一種廣泛應用於射頻加速器儲存環等高能弱流加速器的一種束位置測量裝置，它具有測量精度高、解析度高、不受磁場干擾、機械結構簡單、無磁芯、造價低廉等特點。只是，至今未見有關這種束位置探測器在強流加速器（如，直線感應加速器）上應用的報導，如能將鈕扣電極束位置探測器應用於lia ，將是一件很有意義的事情。
  5. All my samples with good orientation are prepared by rf sputtering. then we invest surface morphology and crystal structure, optical and electrical properties of zno films by afm, xrd, hall testing, ultraviolet - visible spectrum photometer and xps et al. zno films are fabricated on gaas substrate

    本文用射頻反應磁控濺射制備了高度c軸擇優取向的zno薄膜，採用原子力顯微鏡（ afm ） 、 x射線（ xrd ） 、 hall測試儀、紫外?可見分光光度計和x光電子能譜等分析測試手段，研究了樣品的表面形貌、晶體結構、光學和電學性能等。
  6. Rfid : making supply chain management effective

    射頻識別技術：令供應鏈管理發揮更高效能
  7. Subsequently, the communication of wireless is introduced as well as the key points of receiver ’ s rf front end. then, the design methods of receiver with high linearity and high dynamic range are recommended too. also, the blue print of the receiver, the achievement of function guide line and the problems in real debugging are discussed in detail

    本文先介紹了當代無線電導航的狀況以及發展趨勢和無線電的傳播，然後對接收機射頻前端的關鍵技術指標進行了深入分析，還介紹了系統在大動態范圍，高線性實現的一些設計方法，之後詳述了本項目採用的方案、具體功能指標的實現以及在設計與實現中應該注意的問題，最後給出系統的測試結果。
  8. The bottleneck of hybrid filter banks adc system is that it cannot sample directly higher radio frequency signal because of lower analog input bandwidth of its adc. in order to remove it, a kind of downsampler model based on nyquist and bandpass sampling theorem is presented, analyzed and proved in time and frequency domain, in addition a downsampler is designed according to the model. on the basis of hybrid filter banks adc system, a class of high speed hybrid filter banks adc system is proposed

    針對混合濾波器組adc系統因其adc模擬輸入帶寬低而不能對頻率較高的射頻模擬信號進行模/數轉換的瓶頸，作者提出了一種基於nyquist采樣定理和帶通采樣定理的抽取器數學模型，對該數學模型進行了時域、頻域的分析證明后，設計了一種基於該數學模型的sha抽取器，進而在混合濾波器組adc系統的基礎上，提出了高速混合濾波器組adc系統。
  9. From time to time, the sun produces bursts of energetic ions and electrons ; furthermore, charged particles are a major component of the galactic cosmic radiation that constantly bombards our solar system

    太陽有時會爆發高能的離子與電子；再者，以帶電粒子為主成份的銀河宇宙射線，也會頻頻轟擊我們的太陽系。
  10. In the dissertation, the rf characteristics of the periodically iris - loaded elliptical waveguide used in slow - wave structure is discussed. the structure has potential applications to high - power microwave devices and filtering networks at millimeter wave frequencies

    在本論文里，我們討論了周期膜片加載橢圓波導作為慢波結構的射頻特性，這種結構有可能應用於高功率器件和毫米波段的濾波網路。
  11. A new if simulation signal digital model was developed, which has the ability to simulate the ocean return wave noise and the instrument thermal noise. by this simulation data, smle is successfully tested, and the rf ocean return wave simulator also worked correctly. it is difficult for altimeter to realize closed loop internal calibration with a large time - bandwidth product

    （ 4 ）提出了雷達高度計海面回波中頻模擬信號的數字模型，該模型具有模擬高度計海面回波噪聲和儀器熱噪聲的功能；基於該模型的軟體模擬器成功的對高度計跟蹤器進行了驗證；同時，該模型模擬的信號應用於雷達高度計射頻回波模擬器也獲得了成功。
  12. Some valuable conclusions are summarized by theoretical analysis and simulation experiments : from the side of signal processing, pulse jamming can be deleted by the method of time - domain sliding window accumulation and can be restored by interpolative prediction. ; gauss white nose can be attenuated while jamming disperse point - target by the method of time - frequency analysis in time - frequency domain. ; radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain

    通過大量的理論分析和模擬實驗，得到了一批具有一定價值的結論：從信號處理的角度出發，對于脈沖式干擾，能夠運用時域滑動窗口積累的方法去掉，並且通過預測插值得到較好的恢復；對于高斯白噪聲干擾，在時頻變換域內應用時頻分析方法可減小其對分散點目標的干擾；對于射頻噪聲，通過平均距離頻頻法和頻域陷波的方法可以去掉；從改變合成孔徑雷達系統角度出發，類似雙基地雷達能夠避免各種干擾，對發射信號進行調幅，調相以及改變調頻斜率都是較好的抗干擾方法。
  13. The inductor, which is one of the most important magnetic components, is not only used in lc filter and choke but also in rf communication circuit. the thin film inductor can be integrated with semiconductor components, so far it has not been widely used in these fields, the reason is the limited of thin - film material and substrate, process technology and design technology. designing and fabricating thin film inductor is the key point of this paper

    而作為磁性元器件中最重要的電感，它不僅在lc濾波電路、扼流圈中必不可少，在現代射頻通信電路中也被廣泛使用，特別是能與硅器件一起集成的薄膜電感器，在國際上備受重視，而國內長期以來，由於受薄膜磁芯材料、繞組材料、基片材料，包括製作技術及最為關鍵的設計技術限制，尚未研發出能夠用於這一應用領域的高、中、低頻薄膜電感器。
  14. The newly developing transmit diversity and space - time codes are just one of the most important schemes to improve wireless spectrum efficiency

    而近年來提出的發射分集和空時碼就是能夠有效提高無線頻譜利用率最重要的方案之一。
  15. The test results demonstrated the feasible of the scheme. the technique researched in this paper will largely simplify the equipment of modulation and demodulation, and may find its application in millimeter wave in high - speed data communication link

    與中頻調制方案和一般直接射頻調制方案相比，本文所採用的技術大大簡化了調制/解調設備，同時保持了優良的性能，對毫米波高速數據通信鏈路應用具有較大的優越性和廣闊的前景。
  16. Rf plasma system 9200 is a barrel - type batch stripping system with optional high temperature capabilities for photoresist removal, nitride etch, and other cleaning applications in semiconductor and mems fabs

    射頻等離子體9200是桶式爐脫模體，擁有可控制的高溫系統可去除光阻材料、氮化物蝕刻和半導體與微型機電系統等方面的清洗功能
  17. The relationship between sputtering conditions and the depositional speed shows : with working pressure 1. 2 pa, sputtering power 180w, the depositional speed of tio2 thin film is 40nm / h, and increases with the increasing of sputtering power. it can be also founded that the depositional speed is nearly proportional to the working pressure : within the range of 0. 3pa to 1. 6pa, the depositional speed increases linearly with the increase of ar pressure. with the enhancement of the substrate ' s temperature of sputtering or annealing, the resulted thin films show a tendency of decreasing in thickness, and increasing in refractivity

    本實驗是採用磁控濺射方法，在不同的溫度下制備了tio _ 2薄膜，並對薄膜進行了不同溫度和時間的退火處理，通過原子力顯微鏡（ afm ） 、 x射線衍射（ xrd ） 、掃描電鏡（ sem ）等檢測手段對薄膜的表面形貌和組成結構進行了分析，結果如下： （ 1 ）濺射工藝條件與薄膜沉積速度的關系表明：採用1 . 2pa工作氣壓， 180w的射頻功率tio _ 2薄膜的沉積速率為40nm h ，並隨射頻功率的增加而提高，呈近似的線性關系，在0 . 3pa 1 . 6pa氣壓范圍中，氬氣壓強升高沉積速率迅速增加，濺射溫度提高和退火處理能使薄膜的厚度減小和折射率提高。
  18. So the low price, small bulk and high performance of front - end rf become more and more important. in this dissertation, a ka band multiplier chain is developed, which can be used for local oscillator

    低價的、小型的、高性能的射頻收發前端的開發顯得越來越重要，本論文所研究的課題是ka波段倍頻鏈，要求把2ghz的信號倍增至36ghz 。
  19. Tdd - cdma has so much technology advantage such as high spectrum effectiveness, big capacity, supporting asymmetrical uplink and downlink and so on, that it can especially solve the problem of some areas in our country which have overpopulation and scarcity of spectrum resource

    Tddcdma技術具有上下行鏈路不對稱、頻譜利用率高、發射功率低等優點，非常適合於第三代移動通信中的非對稱數據業務，並可以提供較高的系統容量，特別是能夠滿足我國一些地區人口密集而頻譜資源緊張的需要。
  20. Mechanical folding test was applied to analyze the crack behavior of dlc films. the results show that the crack appears due to the mechanical stress and the initiation and propagations of the cracks may be suppressed with higher rf power, bias voltage and gas pressure

    機械彎折試驗結果表明，沉積成膜過程中，應選擇較高的氣壓、基板負偏壓、射頻功率以及適量的n摻雜來制備抗往復彎折的、耐失效性能優越的膜層。
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