wideband 中文意思是什麼

wideband 解釋
多種頻率的
  1. A wideband digital channelized receiver design

    一種寬帶數字通道化接收機的設計
  2. An omnidirectional ultra - wideband monopole antenna, with the characteristics of simple structure, easy fabrication and low cost, mainly comprises a ground plane, a u - shaped radiating member above the ground plane and a feeding member

    一種可提供超寬頻操作頻帶之全向性超寬頻單極天線，其具有結構簡單、製作簡單以及成本低廉的特性。
  3. The circular monopole antenna is a kind of miniaturized and easy - feed ultra - wideband antenna

    本課題所研究的圓盤單極天線是一種小型化、饋電簡單的超寬帶天線。
  4. An ultra - wideband, monocycle ultra - short - pulse transmitter technique

    單周期窄脈沖產生技術
  5. Ultra - wideband electromagnetic radiation from gaas photoconductive switches

    光電導開關的超寬帶微波源
  6. Applications of photoconductive semiconductor switches in ultra - wideband radars

    光導開關在超寬帶雷達中的應用
  7. The catv charge and control system is mainly composed of the management software 、 the header data modulator and the terminal charge and control equipment. i am responsible for design catv charge and control equipment and test system. the header data modulator is used to encrypt the control single from computer and transmit it into the appointed frequency. the terminal charge and control equipment demodulate out the control single from data modulator and transmit it to the addressing control part, where the demodulated fsk single is received and well - handled by the cpu unit, decode the unauthorized signals and deliver it to the shut point, shut point make use of capability of wideband anf characteristic of shut, then the signal of illegal customer will be turn off and vice versa, the legal customer can receive the normal signal

    前端數據調制器完成對計算機輸出的控制信號加密處理，將指令碼載送到一指定頻率點。終端收費控制器解調出控制信號，送至單片機尋址控制部分。單片機尋址控制部分接收經fsk數據解調器送來的信號，送入cpu單元后，解出不授權信號，然後向關斷部分送入信號，關斷部分利用pin二極體的寬帶工作能力以及關斷特性，實現對非授權用戶或者非法用戶的信號關斷，使之不能正常收視，繳費用戶進行開通正常收視，達到控制用戶通道的管理。
  8. Wideband ambiguity function ( waf ) is the powerful tool to analyze the wideband signal, and it is also coherent to cwt

    寬帶模糊度函數是寬帶信號分析的有力工具，它與連續小波變換也是內在一致的。
  9. The basic theory of wideband signal processing is discussed and presented. the coherence among cwt, wcp and waf is pointed out emphatically

    論述了寬帶信號處理的基本理論，指明了連續小波變換與寬帶相關處理、寬帶模糊度函數的一致性。
  10. The new district has independent public utility systems of water supply, drainage, heating supply, gas, wideband network ( wbn ), cable tv, independent sewage and garbage disposal facilities

    新區內有獨立的供水、排水、供熱、供電、燃氣、寬帶網路、有線電視等公用設施系統，獨立設置污水處理及垃圾處理設施。
  11. To utilize the advantages of dsp chips, the system should be computing sources economical. according to digital signal processing theory, the poly - phase fir can help reduce the workloads of the ddc / duc. therefore, adding the complex carrier mixers, the channelization system ( a method of using a single wideband facility to transmit many relatively narrow - bandwidth signals. by subdividing the frequency spectrum used in the wideband channel ) can be formed utilizing the characters of fft

    為了使開發出的軟體可以適用於高速dsp器件開發，節省系統資源，課題首先從數字信號處理的理論進行分析，得出可以利用抽樣率轉換的數字濾波器的特點，即多相濾波實現數字上下變頻計算負擔的減小，之後進一步將多相濾波器與頻譜搬移部分結合，通過公式的推導，得出可利用快速傅立葉變換的特點實現多路信號的通道化發射和接收的處理模型。
  12. Computers, power, supply, emi / rfi suppression and wideband choke coils

    電腦，電源， emi / rfi回波抑制和寬帶雜波抑制電感線圈。
  13. However, because of the use of cic filters in extant asic, it is usually very difficult to meet the requirements of wideband systems

    而當前的數字下變頻器件因為大多採用cic濾波器，很難滿足系統對帶寬的要求。
  14. In this dissertation, some algorithms and techniques of digital beam forming ( dbf ) of the conformal array are studied and also adaptive digital beam forming ( adbf ) of uniformity circular array ( uca ) based on wideband signal is investigated. this dissertation is organized as followed. in the first part of dissertation, the basic theory of conformal array is introduced

    本文研究了共形相控陣的數字波束形成技術，對共形陣的相關技術進行了詳細介紹，並且對一些常規共形陣的數字波束形成技術進行了研究，得到較好的模擬結果，此外，還對寬帶共形陣數字波束形成技術及性能進行了討論、模擬及其性能分析。
  15. China telecom has pushed the construction of base fiber transmission network, extending services including all the country - level above cities and most of the towns in the south areas, which settled up the ip - based wideband network and the introduction of new technologies with the program

    中國電信在「十五」期間大力推進了以光纖為主的基礎傳輸網建設，努力拓展光纜網路的覆蓋范圍，光纜目前已經通達南方地區所有縣級以上城市及絕大部分鄉鎮，為中國電信未來基於ip的寬帶網路的發展和新技術的引入奠定了基礎。
  16. Therefore, a method in design and fpga implementation of wideband digital if receivers based on polyphase filters to fulfill decimation and filtering is proposed

    本文正是基於這種目的，研究並設計了基於軟體無線電技術的中頻數字接收機的數字下變頻。
  17. It is found that flat and wideband sc ca n ' t be obtained in common dispersion - shifted fiber, and dispersion - flattened fiber with small normal gvd is most suitable for flat and wideband sc generation ( 2 ) sc generated in dispersion - flattened / decreasing fiber is studied profoundly

    結果表明，利用自相位調制效應在常規色散位移光纖一般不能產生平坦、寬帶的sc譜。具有較小正常色散的色散平坦光纖有利於平坦、寬帶sc譜的形成。 （ 2 ）研究了色散平坦漸減光纖中sc譜的產生。
  18. The main building is 25 - storied and has high - class single - bed room, high - class double - bed room, deluxe single - bed room, deluxe double - bed room, deluxe suite, and deluxe business suite, luxuriously decorated and the equipments are consummate, all guestrooms are facilitated with gorgeous european palace styled furniture, large - screen tv set, safe, refrigerator, wideband cable and satellite tv programs, as well as the full - intelligent remote control system for the guestroom, including intelligent temperature control, intelligent light control, electronic door key system, audio system, etc. the bathroom of the guestroom is equipped with luxurious steam room and imported massage bathtub

    主樓高25層，擁有高級大床房高級雙床房豪華大床房豪華雙床房豪華套房豪華商務套房。客房裝修豪華設備完善，均配有華麗的歐洲宮廷式傢俱大螢幕電視保險箱冰箱寬頻網線及衛星電視，可遙控全智慧化的房間控制系統，包括智慧溫控智慧燈控電子門鎖系統音響系統等，客房浴室配豪華蒸氣房和進口按摩浴缸。
  19. First, the theory and structure of swr is expounded, then software and hardware models of the base station, which use the sdr structure of wideband and band - pass sampling in if ( intermediate frequency ), are put forward

    首先介紹了軟體無線電的概念、特點、基礎理論和基本構成，推導了軟體無線電的數學模型，然後在此基礎上詳細討論了基於寬帶中頻帶通采樣軟體無線電結構的移動通信基站的硬體和軟體的設計方案。
  20. First, the structure of sdr and the physical - channel of td - scdma are expounded, then software and hardware models of the terminal receiver, which use the sdr structure of wideband and bandpass sampling in if ( intermediate frequency ), are put forward

    首先對軟體無線電的組成結構和td - scdma物理通道進行了闡述，在此基礎上提出了基於寬帶中頻帶通采樣軟體無線電結構的td - scdma終端接收機的軟硬體模塊設計方案。
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