radio-frequency system 中文意思是什麼

radio-frequency system 解釋
射頻系統
  • radio : n. 1. 無線電訊[電報，電話]；無線電，射電。2. 無線電廣播；無線電（廣播）臺。3. 收音機。vt. ,vi. 用無線電傳送[廣播]；（向…）作無線電廣播[傳送]；用X射線拍照；用鐳醫治。
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  • system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
  1. So it holds a ideal ability to anti - interference and has 2 scalar level resolution in location and measuring velocity than traditional radio induction technology. and the channel composed of the new radio induction system for communication is different from the parameter - constant channel and the traditional parameter - changing channel, its parameter is decided by the mutual induction between its antenna and induction - cable, by the location of its antenna, by the signal frequency passing through, its parameter has nothing to do with the time parameter. the channel composed of the new radio induction system is a new parameter - changing channel independently of time for communication

    而且，由新型無線感應系統組成的通道既不是恆參通道，也不是一般目前所知的變參通道，其通道傳遞函數的幅值只與信號的頻率有關，與系統中天線和感應電纜之間的互感和天線的位置有關，而與時間無關，其通道傳遞函數的相位只與天線的位置有關，而與時間無關，由新型無線感應系統組成的通道是一種不隨時間變化的新型變參通道。
  2. Digital intermediate frequency system is one of the hotspots in radio communication and military research, it provided a superexcellent way for high - speed double direction digital communication

    數字中頻系統是當前軍事與移動通信領域的研究熱點之一，它為高速雙向無線數據通信提供了思路與方案[ 1 ] 。
  3. Zno thin films were deposited on silicon ( si ) and glass substrate by reactive radio frequency sputtering ( rf ) technique with zinc target in the mixed gas of ar ando2, and used zno buffer improving the quality of zno thin film. the effects of parameters on the thickness, composition, texture, morphology, optical properties and electrical properties of zno thin films had been systematically investigated by means of xrd, xps, sem, afm, pl and hall test system

    採用x射線衍射（ xrd ） 、 x射線光電子能譜（ xps ） 、掃描電子顯微鏡（ sem ） 、原子力顯微鏡（ afm ） ，光致發光譜（ pl ）和霍爾效應測試技術系統研究了濺射工藝和退火工藝對zno薄膜的厚度、成分、織構、表面形貌、光學性能和電學性能的影響規律。
  4. Boron nitride ( bn ) thin films were deposited on si substrates using the conventional radio - frequency ( rf ) sputtering system, with hexagonal boron nitride ( hbn ) target and working gas of argon ( or mixture of nitrogen and argon )

    使用射頻濺射（ rf ）系統，靶材為燒結的六角氮化硼（ hbn ） ，工作氣體為氬氣（或氬氣和氮氣的混合氣） ，在硅襯底上沉積氮化硼薄膜。
  5. Base station identity code. an attribute of a gsm ( global system for mobile communications ) cell which is a code allowing a distinction between local cells having the same radio frequency

    基站識別碼。 gsm （全球移動通信系統）蜂窩小區的一個屬性，通過基站識別碼，不同的本地蜂窩小區可以使用相同的無線頻率。
  6. I a hong kong degree in electronic engineering, communication and radio frequency engineering, control engineering, system engineering, computer engineering, information engineering, information technology or computer studies or equivalent ; and

    I a持有香港的電子工程通訊及射頻工程式控制制工程系統工程計算機工程資訊工程資訊科技或電腦學學位，或同等學歷及
  7. With the development of social economy and science technology, rf ( radio frequency ) card technology is more broadly applied by all kinds of trades, specially such as mass transit, wireless communication identify finance trade and safety - defend etc we use usually magnetic card or touch ic ( intelligent card ) in the past, but the shortage is that the card is read - write low efficiency frictional waste and short life, so that it ca n ' t guarantee the reliability of system for long term running

    隨著社會經濟和科技的發展，射頻卡技術越來越廣泛地應用於各種行業，特別是公共交通、無線通信、身份識別、金融交易和安全防衛等行業。過去，智能卡應用領域常採用磁卡或接觸式ic卡，但由於讀寫速度慢，易磨損，使用壽命短，無法保證系統長期運行的可靠性和方便性。
  8. Second, based on reading radio frequency card module of em corporation, the design of a rfid system is given

    其次，根據em公司提供的讀頭晶元，設計研製了一種射頻識別系統。
  9. However, psm also have some disadvantages, for example, the output voltage ripple is large at light load and the system maybe produce radio frequency noise

    但psm也具有不可避免的缺點:輕載時輸出電壓紋波較大，且易引入音頻噪聲。
  10. Second, the paper calculates some rfss ( radio frequency simulation system ) anechoic chamber to use go ( geometrical optics ) and gives the detailed calculating course and consequence. then compares it with measured consequence, observes that they tally well. so, the model of microwave anechoic chamber is right

    本文採用幾何光學法計算了某射頻模擬微波暗室，並詳細給出了計算過程，最後得到了靜區反射率電平的計算結果，然後將其與實測結果進行比較，發現基本吻合。
  11. On the basis of high speed hybrid filter banks adc system, a kind of downsampler model based on bandpass sampling theorem is presented, and analyzed, proved in time and frequency domain, in addition a downsampler is designed according to the model. a class of high effective hybrid filter banks adc system which bases on the downsampler and radio frequency spectrum is proposed, of which digital signal rate falls m times as fast as the former

    作者提出了一種基於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抽取器，進而根據無線電射頻信號頻譜的特點，提出了高效混合濾波器組adc系統，其數字信號輸出速率比高速混合濾波器組adc系統降低m - 1倍。
  12. 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。
  13. Radio induction is mainly studied in this paper, the traditional radio induction technology has simple structure, lower cost, convenient maintenance and higher location resolution and measuring velocity, but its anti - interference is lower. new radio induction system is proposed in this paper, it has excellent anti - radiated interference of any frequency ( it should be declared specially that it includes the anti - interference of the same frequency ) ; because of its hi gh frequency - pass function, the new radio induction system has less affection excited by the conductive interference

    本論文提出的新型無線感應系統對外界所有頻段上輻射干擾（特別強調的是包括同頻干擾）具有較理想的抗干擾能力；由於新型無線感應系統起高通濾波作用，傳導干擾對它的影響可以忽略，因此新型無線感應系統具有較理想的抗干擾能力，用在定位測速中具有比傳統無線感應技術高2個數量級的精度。
  14. Measurement about the radio - frequency sensitivity of the priming system based on the bridge - wire

    基於橋絲式電火工品射頻感度測試方法的探討
  15. Rfid ( radio frequency identification ) system is an automatic identification technology that has been developed since 1980s. compared with barcode system, optical character recognition technology, biometric identification technology, integrated circuit card, rfid system has particular contactless, anti - interference and environmental adaptability characters, so it becomes one of the most excellent automatic identification procedures that are applied in many fields

    發展到今天，射頻識別技術和條形碼識別技術、光學符號識別技術、生物識別技術、 ic卡（ integratedcircuitcard ）識別技術等這些自動識別技術相比，以它特有的無接觸、抗干擾能力強等優點逐漸成為自動識別中最優秀和應用領域最廣泛的技術之一。
  16. It adopts 60w radio frequency laser producer and cti mirror system imported from america. the electric scissor lift table realizes precise control of focus. infrared ray - demonstrating aiming device can position the marked object more conveniently. it is a comparatively high - quality marking machine, characterized by its high efficiency and convenience, zero materials, zero pollution, and zero poison. applied fields : marking of many non - metal materials, such as cloth, leather, acrylics, wood, paper, pacage of food, electronics, and medicine, etc

    該機使用美國進口60w射頻激光器和cti振鏡系統，電動升降平臺平實現焦距精確控制，用紅光指示結準器，更方便打標對象的定位，具有高效便捷無需耗材，無毒無污染等特點，是一款性價比較高的標記設備。
  17. Most major suppliers will already have been required by wal - mart to adopt radio frequency identification rfid as a consequence of the electronic adaptation of the retail giant ' s supply chain and nearly all major us and european chains have become dependant on rfid or another electronic tag system

    沃爾瑪在供應鏈採用電子標簽系統后，已要求大部分主要供應商採用無線電頻率識別設備rfid ，現時差不多所有歐美連鎖店都使用rfid或其他電子標簽系統。
  18. The c - bn thin films were deposited on si substrates using the conventional radio - frequency ( rf ) sputtering system. the c - bn / si thin film heterojunctions have been fabricated with doping into n - type ( p - type ) semiconductor by implanting s ( be ) ions into them. i - v curves of bn / si heterojunctions were obtained by the high resistance meter, c - v curves of bn / si heterojunctions were obtained by the c - v meter

    使用rf射頻濺射系統，在si襯底上沉積氮化硼薄膜，用離子注入的方法在制備好的bn薄膜中分別注入s和be ，成功的制備了bn / sin - p和bn / sip - p薄膜異質結，用高阻儀測得bn薄膜表面電阻率和bn / si薄膜異質結的i - v曲線，用c - v儀測得bn / si薄膜異質結的c - v曲線。
  19. Targeted at the weakness of container loading and unloading management, combined with sharing serial port, a scheme of the information monitoring system which is based on wireless communication, global positioning system and radio frequency technologies is presented

    摘要針對集裝箱貨物裝卸監控管理上的不足，結合串口復用的方法，建立基於無線傳輸技術、全球定位系統和射頻技術的信息監控系統設計方案。
  20. Harmonized system of quality assessment for electronic components - sectional specification : radio frequency coaxial connectors - series eia flange

    電子元器件質量評定體系. eia系列法蘭射頻同軸連接器分規范
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