鏡頻 的英文怎麼說

中文拼音 [jìngbīn]
鏡頻 英文
image frequency; second-channel frequency
  • 鏡 : Ⅰ名詞1 （鏡子） looking glass; mirror 2 （幫助視力或做光學實驗的器具） lens; glass 3 （姓氏） a s...
  • 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...
  1. A lot of engineering applications are carried out using our proposed method in this paper, such as thermal deformation measurement of a car lamp, analysis of the super low frequency harmonic vibration of a piezoelectric ceramic, dynamic mechanical behavior analysis of the ballistite material and so on

    在前面所提出的理論基礎之上，本文對該方法在實際工程中的應用做出了大量的工作。本文利用時間序列法實現了汽車前燈配光鏡的熱變形檢測、壓電陶瓷片的超低頻振動分析以及火箭固體燃料的動態力學特性研究。
  2. To ensure the security of gi inspection, no approving method has been developed by far to drive the capsule endoscope but utilizing the natural peristalsis of gi tract. the uncontrollability of the capsule endoscope brings on some limitations in its functional extension in inspection, medication and surgery, such as temperature and ph measuring, medicament spraying, sampling, on - line sample analyzing, laser incising and rf cauterizing

    膠囊內窺鏡目前還沒有實用的主動驅動方法，只能利用消化道自然蠕動作為膠囊內窺鏡前進的動力。由於膠囊內窺鏡不可控，限制了它的功能擴展，比如壓縮空氣噴藥、吸取組織樣品、在線樣品分析、激光切割、射頻燒灼等。完善的膠囊內窺鏡系統需要在現有基礎上加入安全有效的驅動控制，可調整姿態、行進及定位，從而擴大膠囊內鏡檢查的適應癥、安全性與多功能性。
  3. By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent

    最後，本文還對絮凝動力學和絮體結構進行了研究，在前人研究的基礎上，針對高分子絮凝黃河泥沙，對絮凝過程作了一些符合試驗條件的假設，建立了顆粒碰撞頻率表達式，應用了顆粒數量平衡方程，從而建立了絮凝過程的動力學生長模型，模型計算結果與試驗數據對比表明，二者趨勢一致，在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程；對絮體結構的研究中，應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察，將絮體分為絮粒、絮團和絮網三個不同的生長階段，通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體，建立了絮體結構模型，計算得到的模型絮體分形維數基本與試驗中的實際絮體相符，在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。
  4. By using irm, heterodyne receiver with good image rejection and mmw - to - if once frequency conversion can be realized, which simplified receiver constitution prominently. the number of local oscillation ( lo ) sources is reduces and electromagnetic compatibility ( emc ) of mmw system is improved. also, the size, weight, power consume and cost of mmw receiver is reduced

    採用毫米波鏡頻抑制混頻器，可在保證鏡頻抑制性能的前提下，採用1次變頻接收機，從而大大簡化接收構成，減少本振數量，改善毫米波系統電磁兼容性，減小接收機體積、重量、功耗，並降低成本。
  5. Pinhole lens, with audio optional

    針孔鏡頭，可帶音頻
  6. The system is composed of an medical microscopy, a video image sampling card, a computer system and software what we developed specially for this system. further more, it provides many powerful functions including pathologic image recording, image sampling, image processing, parameter measurement, result analysis, report creating, report printing and so on

    該系統集醫用顯微鏡、視頻圖像採集卡、計算機系統於一體，實現了從病理圖像記錄、採集、預處理到特徵參數測量、結果分析、報告生成、列印等一系列功能。
  7. Hotel kunlun s guestrooms and suites feature the following amenities and services : high - speed broadband internet access international domestic direct dial fold - out make - up shaving mirror coffee tea - making facilities electronic safe mini bar satellite cable television voice mail bathrobe slippers hairdryer wake - up calls room service bed - side control panel in - room temperature controls shoeshine service

    昆侖客房和套間提供下列物品及服務：高速寬頻上網國內外直播電話折疊式化裝鏡電子保險箱小酒吧有線衛星電視語音信箱浴衣拖鞋吹風機叫醒服務房間送餐服務床頭控制面板溫度調節擦鞋服務
  8. The sub - harmonic mixer is used as unit mixer to reduce lo to its 1 / 4

    此鏡頻抑制混頻器採用諧波混頻器作為單元混頻器，將本振頻率降低為基頻的1 / 4 。
  9. In active section, in order to meet performance of out put power above 10dbm, the power amplifier module of ka - band is fabricated by using hmc283 to achieve the 14db conversion gain. there are five parts that include of waveguide - to - microstrip ? mixer ? filter ? power amplifier and waveguide - to - microstrip. input signal ' s power is 10dbm, after it pass waveguide - to - microstrip, it ' s frequency is escalate from 30ghz to 35ghz

    該組件由五個部分組成：功率為10dbm信號經過波導? ?微帶過渡，然後混頻，濾波將30ghz提高到35ghz濾除不需要的諧波鏡頻以及三階交調信號，為了彌補混頻濾波的變頻損耗，加一級功率放大器，此放大器採用hittle公司hmc283晶元，此上變頻放大組件完成了上變頻?濾波?放大功能。
  10. The image rejection mixer is composed of two unit mixers, rf is halved as two parts in quadrature ; lo is halved as two parts in phase ; if is synthesized in quadrature

    鏡頻抑制混頻器包含兩個單元混頻器，射頻正交功分，本振同相功分，中頻正交合成。
  11. Image frequency rejection mixer

    鏡頻抑制混頻器
  12. Image frequency rejection ratio

    鏡頻抑制比
  13. Image rejection ratio

    鏡頻抑制比
  14. At first, the design and implementation of mmw hybrid integrated sub - harmonic image rejection mixer is presented in this paper

    本文首先介紹了一種毫米波段具有鏡頻抑制功能的四次諧波混頻器的設計與實現。
  15. To compensate for the above shortcomings, a surgical technique is developed at our institute - flexible videolaryngostroboscopic surgery

    基於以上理由，我們遂採用一種喉內手術方法在軟式纖維鏡頻閃觀測錄影系統監控下的喉內手術法。
  16. The results showed conversion loss less than 11. 2db and image rejection ratio more than 20db over 4ghz rf bandwidth, when if is 70 mhz fixed

    通過測試，當中頻固定在70mhz ，在射頻大於4ghz帶寬內，變頻損耗小於11 . 2db ，鏡頻抑制度大於20db 。
  17. The amplitude and phase balance of the unit mixer is controlled strictly through designing. wideband image rejection is realized in the condition of the fixed if

    通過設計控制單元混頻器幅度和相位平衡，在固定低中頻下，實現了寬帶鏡頻抑制。
  18. Having the property of good image rejection in broadband and low intermediate frequency ( if ) cases, the image - rejected mixers ( irm ) have been widely used in various mmw receivers

    而鏡頻抑制混頻器能夠在寬帶、低中頻的情況下實現良好的鏡頻抑制。
  19. In former, image - reject mixer uses phasing to differentiate between two single - balance mixers. it ' s four diode is type of dmk - 2606 by made alphar corporation, module of mixer ' s integrated circuit is simulate by senerade 8. 0 and ads software

    然後介紹了混頻器的基本原理，設計了鏡像抑制混頻器和上變頻器放大電路，鏡像抑制混頻器是利用兩個單平衡混頻器的相位差對鏡頻進行抑制，其中四個混頻二極體採用alphar公司dmk - 2606型。
  20. We propose a chaos - based generation of the random ppm - ps signals, design and implement a generator of the ppm - ps signals. we introduce an if sampling technique and simulate the performances of digital demodulation techniques of using hilbert filters, sine filters, bessel filters and poly - phase filters. the poly - phase filtering method can achieve the higher mirror - frequency rejection ratio by using the low order filters

    介紹了中頻采樣技術，並對希爾伯特濾波法、辛格內插函數修正、貝賽爾函數插值法及多相濾波法等數字解調演算法進行了計算機模擬和性能比較，指出多相濾波法能以較低的階數實現較高的鏡頻抑制比。
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