有面波傳輸線 的英文怎麼說

中文拼音 [yǒumiànbōzhuànshūxiàn]
有面波傳輸線 英文
surface wave line
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 傳 : 傳名詞1 （解釋經文的著作） commentaries on classics 2 （傳記） biography 3 （敘述歷史故事的作品）...
  • 輸 : Ⅰ動詞1 （運輸; 運送） transport; convey 2 [書面語] （捐獻） contribute money; donate 3 （失敗） l...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  1. Abstract : according to the continuative condition of the tangential fields on the slot aperture which is the inclined narrow - slot on the broadwall of a sectoral waveguide, the moment method is used to calculate the magnetic current coefficient and distribution. then the scattering field, the scattering parameter and the equivalent impedance are obtained. leting only the te11 dominant mode propagates in the waveguide, the scattering parameters and the normalized equivalent series impedance in the x - band are computed. the basis disigned the slot antenna and the slot array is offered

    文摘:根據縫隙口面切向場的連續條件，採用解析數值法矩量法，對扇面波導寬壁上窄的斜縫進行了計算，解得了磁流系數及其分佈，並得到散射場、等效散射參量及等效阻抗等重要參數.假定波導中僅有te11主模傳輸，在x波段計算了散射參量和歸一化等效串聯阻抗，給出計算結果，為縫隙天線和縫隙陣列設計提供了依據
  2. Another increasingly important ( actor is to be integrated with analog and digital circuits. for this reason, it is highly advantageous for the microwave components to be fabricated through a commercial cmos process. so we research the microwave transmission lines and apply it into phase shift

    微型硅基微波傳輸線是微波無源、有源器件及微波集成電路的重要構成基礎，本文首先對其工作原理、器件模擬、結構參數設計、制備及散射參數測試進行較深入全面的研究，並進一步將微波傳輸理論應用於mems移相器，對移相器的結構參數、相移特性及可靠性等進行了分析。
  3. Liquid crystal tunable filters as an important device of wavelength division multiplexing and dense wavelength division multiplexing systems is caused attention by research department, especially many foreign research institute are studying it. but in our country its study is lag. and normal incidence of the crystal is almost the case, because the liquid crystal box is very thin, the field angle may be large and the pose of liquid crystal box may have impact on the measuring result. so, study in such subject, especially the liquid crystal box ' s position angle, is academic and valuable

    各種改進液晶電光可調諧濾光片的措施的實現，使得液晶調諧濾光片成為一種很有應用前景的電光調諧濾光片，特別是用於光纖通信中的波分復用系統和密集波分復用系統，將使光纖的傳輸客量大大增加目前國外在這方面的研究進展很快，而國內在這方面的研究比較薄弱，而且通常採用光線正人射晶體進行研究，由於液晶盒很薄，視場角可以很大，液晶盒的擺放對測量結果影響很大，因此對該器件進行深入的研究，討論液晶盒的方位角影響是很有必要的。
  4. The dissertation gives a comment on the field of energy - transmitting fibers for mid - infrared laser, an introduction to the mechanism of infrared - transmitting fibers in view of radiations and waveguides, and a theoretical analyze of the layer - selecting method for the fibers with multi - layer dielectric films. in view of the properties of sic in the region of mid - infrared, the author has done many works about the energy - transmitting fibers with sic, and summarized as follows : first, it is found that sic is a very good material for the fabrication of power - transmitting fibers for mid - infrared laser, especially for co2 laser that works at 10. 6um wavelength, and sic / sio2 hollow fibers has not been studied in the world for the first time to our knowledge. second, it is pointed out, for the first time to our knowledge, that the hollow fibers with a structure like si / sic / sio2 or ge / sic / sio2 have very good properties for the mid - infrared laser power transmitting, especially for co2 laser

    本論文評述了關于中紅外傳能光纖的國內外進展，從光射線理論和波導理論出發介紹了紅外傳能光纖的傳輸機理，從薄膜光學出發分析了多層介質膜傳能光纖的膜層選擇機理等基礎理論，針對碳化硅（ sic ）在中紅外區的特點，在導師侯藍田教授領導的科研組已有成果的基礎上進行了以下幾個方面的研究：發現了sic是制備紅外傳能光纖的良好的紅外材料， sic sio _ 2空芯傳能光纖在國際上還沒有人進行研究：提出了具有si sic sio _ 2和ge sic sio _ 2膜結構的空芯傳能光纖，據我們所知，這種光纖目前在國內外還沒有人進行研究，並對其傳輸性能進行了可行性分析。
  5. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面： 1 、針對頻率選擇性衰落通道：結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法，與傳統方法相比，該方法計算量更小，收斂速度更快，性能更優，且對系統階次的過確定表現穩健，具有實際均衡應用價值； 2 、針對時間選擇性衰落通道：提出一種基於迫零均衡的時間選擇性通道均衡方法，演算法結構簡單； 3 、針對時變色散通道：利用瞬態均值曲線提取通道時變信息，對之ar建模，利用卡爾曼濾波器跟蹤時變通道抽頭變化，可以快速跟蹤通道變化；基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法，提出了新的單輸入多輸出色散時變通道均衡與識別演算法，同樣具有對通道階次過確定保持穩健的優點；結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法；研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題，給出一種時變系統處理模型。
  6. To accelerate the development of next generation high dwdm system, the pape r also researches the property of gain. based on optical wave nonlinear transmission equation, the gain model of fra is established. by the way of numerical analysis, it is obtained that the gain of fra has relation with pump power, input signal wave power, the effective area and absorption of fiber. the obtained conclusion has definite instruction to the design of fra

    為了促進下一代超高速dwdm密集波分復用技術的發展，本文還研究了光纖喇曼放大器的增益特性，根據光波非線性傳輸方程建立光纖喇曼放大器增益模型，通過數值模擬分析了泵浦波功率、信號輸入光功率、以及光纖有效面積和損耗對光纖喇曼放大器增益的影響，得出了一些對光纖喇曼放大器的設計有一定的指導意義的結論。
  7. Coplanar waveguides ( cpw ' s ) offer several advantages over conventional microstrips, these include the simplification of the circuit fabrication process, ease of parallel and series insertion of both active and passive components ( without the need for via holes ), and high circuit density. therefore cpw ' s are widely used in microwave and millimeter - wave integrated circuits, optical and high temperature superconductor microwave devices

    與常規的微帶傳輸線相比，共面波導具有容易製作，容易實現無源、有源器件在微波電路中的串聯和並聯（不需要在基片上穿孔） ，容易提高電路密度等優點，因此共面波導被廣泛應用於微波、毫米波、光學和高溫超導等集成電路中。
  8. The system solves the problem of information transmission by using microwave communication including heights design of microwave antenna to ensure the power of communication. the author studies the theory of malfunction control, and to control the system by the circular code system and to use error control by redundancy method, to ensure the reliability of the communication

    系統採用微波通信技術解決信息傳輸的難點，從天線高度設計、冗餘法差錯控制，循環碼制選擇等方面保證通信的可靠性，採用沖突避演算法防止通信沖突，使系統有序地進行工作，並充分地利用了通道，也提高了工作效率。
  9. System scheme of speech coding plus spread spectrum communication was presented based on a full analysis of noise characteristic, attenuation characteristic and impedance characteristic of low - voltage power line. spread spectrum carrier ( abbreviated as ssc ) technology is adopted to overcome problems existing in signal transmission over power line. high quality, low rate mbe compression algorithm was used to complete speech encoding and decoding

    在對低壓電力線路的噪聲特性、衰減特性和阻抗特性三個方面充分分析的基礎上，本文提出一種語音編碼+擴頻傳輸的系統總體方案，採用擴頻載波（ spreadspectrumcarrier ，縮寫為ssc ）技術克服電力線傳輸信號存在的問題，採用語音合成質量高並具有較低碼率的mbe壓縮演算法完成語音信號的編解碼。
  10. To meet the needs of teledata transit, the digital transmitting techniques are applied to the system, the power line carrier wave tele - circuit with a bus transfer interface is supplied, and what ' s more, a detailed introduction is given to illustrate the operation

    為了滿足遠距離數據傳輸的需要，將電力線載波數據傳輸技術應用於冷庫溫度檢測系統中，並設計了帶有總線轉換介面的電力線載波通信電路，闡述了其工作原理。
  11. A new similarity method in fem is presented for researching of the problems about the nonuniform and irregular region, such as micromachined microwave coplanar waveguide. by using this method, we calculate the characteristic impedances of mems waveguide and analyse the change with its different dimensions. with the use of a recurrence relation, this new method not only use much less computer ' s memory than the conventional fem, but also simplify the post - process

    對低阻硅襯底上實現v型槽mems共平面波導進行了詳細深入的研究，提出並採用混合相似剖分有限元方法對不規則結構傳輸線的特性阻抗進行數值分析，在驗證了方法的正確性基礎上，進行了大量計算，並總結了常用50 、 120等阻抗傳輸線的結構參數。
  12. There has been established an all enveloping transmission network of broad - band information with big - capacity optic fiber, digital micro - wave, cable and broadcast tv. long distance telephone calls can reach 1, 800 cities in the country and practically all places in the world

    全市已形成大容量光纖、數字微波、有線和無線全面覆蓋的寬帶信息通訊立體傳輸網路，長途電話可直撥世界各地和國內1800多個城市。
  13. Last, based on the mc - cdma system model above mentioned, the matlab simulation is done. by the simulation of the ber performances from white gaussian noise, peak power clipping and combating multipath interference are analyzed, and some conclusions are obtained that mc - cdma is superior to ofdm

    最後，在上述給出的mc - cdma模型中，通過matlab模擬分析了在mc - cdma與ofdm兩種系統中由高斯白噪聲、削波噪聲以及多徑干擾所造成的誤碼率分佈曲線，得出mc - cdma系統在無線數據傳輸方面較ofdm系統更具有優良的特性，並給出了比較具體的性能分析。
  14. First several kinds of implementation of si - micromachined transmission line have been investigated. with different fabricating process, each transmission line has its different structure, and the insertion loss and operating frequency range are different. then we determined our objective

    在大量文獻調研的基礎上，對硅襯底上制備微波傳輸線的方法進行了全面分析和總結，結合現有儀器設備和加工技術條件，確定研究目標。
  15. ( 2 ) the distributed bst capacitor - loaded phase shifter was designed, of which the high impedance transmission line is finite ground coplanar wave - guide ( fgcpw )

    （ 2 ）採用分散式電容負載型結構設計出毫米波薄膜介質移相器，其中的高阻傳輸線為有限寬度地共面波導。
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