超高頻段 的英文怎麼說

中文拼音 [chāogāobīnduàn]
超高頻段 英文
uhf
  • 超 : Ⅰ動詞1 （越過; 高出） exceed; surpass; overtake 2 （在某個范圍以外; 不受限制） transcend; go beyo...
  • 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...
  • 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...
  • 段 : Ⅰ量詞（部分） section; segment; part; paragraph; passage Ⅱ名詞（姓氏） a surname
  • 超高 : 1 （鐵路彎線的外軌加高） superelevation2 （船的出水高度） freeboard; freeboard height3 super high...
  • 頻段 : frequency range; frequency channel
  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. 120 ac, air conditioned, airline desk, baby sitting, bar, barber shop, beauty salon, porters, boutiques, business center, conference facilities, coffee shop, coffee maker, concierge desk, 24 hour front desk, disco, drugstore, driving range, elevators, florist, exercise gym, hairdryer in room, health club, horseback riding, international direct dial, kitchenette, guest laundromat, maid service, mini bar, modem jack, multilingual, free newspaper, news stand, small pets allowed, playground, heated pool, indoor pool, outdoor pool, poolside snackbar, bus parking, parking, putting green, refrigerator, restaurant

    酒店擁有標準間豪華間商務豪華間及商務套間，以及商務豪華復式套房408間，房內設施全，設有彩色電視衛星電視頻道閉路電視及收音波段室內冰箱獨立冷暖風空調系統。酒店的「浪花」會員制娛樂部更擁有北京市獨有的室內外連通的超豪華暖水游泳池，溫泉歐式桑拿日式沖浪按摩及太陽浴將滿足您健身及放鬆的需要。酒店附近的跑馬場和27洞高爾夫球場則是鍛煉的好去處。
  3. Enterprise pessess of advanced electing cooker of frequency conversion semiconductor superior checking electric cooker etc. complete heat treatment equipment, equipments, precious physical and chemical experiments and quality guarantee system lay the reliable foundation for casting the products of high quality

    公司現擁有先進的固體變頻電爐、半導體變頻電爐、消失模鑄造生產線、拋丸清理設備及完整的熱處理設備，超前的檢測設施、精確的理化實驗、完備的管理檢測手段及質量保證體系為鑄造高品質的產品奠定了堅實的基礎。
  4. Current research of vls - vod are focused on scalable software and hardware architecture and effective bandwidth - sharing mechanism, which are two foundation stones in scaling the vod system to serve more users

    可擴展的視頻服務器軟硬體體系結構和高效的帶寬復用策略是擴展vod系統服務規模的兩個主要手段，已成為超大規模vod研究中的熱點。
  5. And classic pid control method and numerical pid control method have been introduced in the paper. the paper adopt stabilization border method to set the pid parameters and simulates the control system which is based on matlab / simulink. simulation results indicate that pid control ’ s simulation results have a good effect in low - frequency stage, but it is not perfect in mid - frequency and high - frequency stage

    採用穩定邊界法實現對pid參數的整定，並基於matlab / simulink對控制系統進行了模擬，模擬結果表明:低頻段pid控制正弦跟蹤曲線取得了良好的效果，而在中頻和高頻段時的跟蹤效果不是很好， pid控制的階躍響應超調量較大， pid控制三角波曲線的高頻性能也不理想。
  6. And some useful rules are concluded from these experiments. the pd signals on different frequency scopes are surveyed, and the thesis explores anti - noise narrowband detection of partial discharge signals. for the first time the thesis brings forward the choosing - frequency detection of pd ground on the radio frequency communication

    同時，進行了局部放電不同頻段信號檢測，為窄帶抗干擾檢測技術奠定基礎，並首次提出基於射頻通訊原理的選頻檢測原理及檢測設想；在實驗室中進行了局部放電超高頻信號的檢測，驗證了超高頻法檢測局放信號時對空間電暈干擾的抑制作用。
  7. Many technologies of electrically small antennas and wide band antennas are discussed in theory, simulation and experiment. and some novel electrically small or wide band antennas are proposed. the loaded monopole is analyzed in depth integrating the genetic algorithm ( ga ) with the method of moments ( mom ) in order to increase the gain and decrease the vswr of antennas used at hf / vhf band

    在本論文的研究過程中，通過合理利用各種現有的天線寬帶化和小型化的理論成果、有效的綜合各種技術措施，運用矩量法和遺傳優化演算法等數值方法，深入研究了加載單極子天線問題，旨在全面提高高頻/甚高頻頻段內的天線增益和降低電壓駐波比，以獲得較高增益的、基本滿足駐波要求的小型超寬帶天線。
  8. There are functions such as drawing the chart of amplitude - frequency and phase - frequency, calculating and displaying the highest peak value, the total sum of amplitude and the effective line - breadth of the signal in the program. so an effective technical means is supplied for the analysis of ultrasonic signal

    軟體系統具有幅頻圖及相頻圖的繪制、最高峰值、諧波系數及有效譜寬度的計算及顯示等功能，從而為超聲信號的頻譜分析提供了極其有效的技術手段。
  9. Therefore, the general trend of ebinur lake ’ s development in the future is in water shortage. in some special periods, the annual and age lake area sometime will exceed 800km2 1000km2. but the frequency is not high, it will have less effect on the

    因此，艾比湖未來發展總體趨勢仍處于缺水狀況，在年內和年際某些特殊時段，湖面會出現超過800km2 1000km2的短時過程，但出現的頻次不高，對沿湖鐵路線的影響較小。
  10. In order to hold the performance of the antenna array of hf radar the length of antenna array is also very long

    高頻超視距雷達工作在短波波段，為了保持一定的天線陣性能，天線陣尺寸通常也較大。
  11. I don ' t believe into any groundbreaking revolutions after epc standards were created and uhf regulations opened uhf band for rfid use

    我相信沒有什麼比epc標準和為使用rfid而開放超高頻頻段，設立規則更有革命性突破意義了。
  12. At present, superconductor filter subsystems have been deployed abroad in the field of mobile communication and offered exceptional commercial performance. the design of hts filters is a comprehensive problem of network analysis. according to the condition of calculation and practical size of superconducting films, we configured compacted forward - coupled microstrip filter, with the aid of tumic and sonnet software

    高溫超導濾波器的設計是一個網路綜合的問題，根據我們目前的設計條件和超導薄膜的尺寸因素，我們選用了結構緊湊的前向耦合型電路設計，應用tumic和sonnet模擬軟體，設計了用於移動通訊頻段的高溫超導濾波器，並對幾個重要參數進行了實驗測試和分析。
  13. By the same token, persistence and a growing ingenuity among computer criminals makes it likely that the federal law will have to be strengthened in the years ahead to help keep pace with technological advances

    同樣，電腦犯罪分子的犯罪手段日趨高明，犯罪頻率居高不下，這可能使聯邦法律不得不超前發展幾年才能趕上電腦技術發展的步伐。
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