超寬帶 的英文怎麼說

中文拼音 [chāokuāndài]
超寬帶 英文
ultra wideband
  • 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...
  1. Symbol timing with modified autocorrelation scheme for uwb systems

    多徑超寬帶系統修正自相關符號同步方案的實現
  2. The works of this paper are mainly about the study for ultra wide - band ( uwb ) signal radiating - designing for effective uwb antenna, and uwb signal scattering - investigating of composite scattering for targets upon ground. firstly, the radiating characters of uwb signal and development of uwb antenna are discussed an uwb planar horn antenna is designed this antenna is characterized with u - balun, simple construction and perfect performance

    本文的研究是「九五」國防預研「超寬帶（ uwb ）雷達體制及關鍵技術研究」項目工作的一部分，主要包括兩方面內容：超寬帶信號的輻射-高效超寬帶天線的研製；超寬帶信號的散射-地表目標的復合散射研究。
  3. Design of microwave ultra - broad band low noise amplifier

    微波超寬帶低噪聲放大器的設計
  4. Mattias lampe, ronghong jin, junping geng, xianguang guo : invention patent “ one kind of directional / omni - directional antenna ” ( submitted )

    丁敏，金榮洪，楊熹，耿軍平，勞佳，吳琦：發明專利「甚高頻超寬帶天線設計」 （已提交） 。
  5. Experimental study on a broadband erbium - doped fiber amplifier

    一種超寬帶摻鉺光纖放大器的實驗研究
  6. Then, using the opening transmission line model, the deduction of the tem - horn antenna far - field radiation formula is introduced. comparing with the traditional nb antenna array, the brief theory of uwb antenna is analyzed

    然後介紹了應用開路傳輸線理論模型對tem喇叭天線軸上遠場輻射的推導過程，並對比傳統窄帶天線陣列，分析了超寬帶天線陣列的一般工作原理。
  7. Secondly, in this paper, the four typical uwb antennas of tem horn antenna, log - periodic antenna, biconical antenna and helical antenna are theoretically analyzed and the uwb antenna design methods are generalized and discussed

    其次，本文對tem喇叭天線、對數周期天線、雙錐形天線和螺旋天線四種典型的超寬帶天線進行了理論分析，總結並討論超寬帶天線的設計方法和手段。
  8. Inhomogeneity of the breast tissue was taken into account in the breast model

    收發分離的天線陣方案降低了超寬帶成像對天線設計的苛刻要求。
  9. It is becoming trends of modem radar technology, which are ultra - wide band, high resolution, low probability of interception, intelligent, according to the points of high tech local war happened last several decades

    針對高技術局部戰爭的特點，現代雷達技術正朝著超寬帶、高分辨、低截獲、多功能、智能化的方向發展。
  10. 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。
  11. Analysis of the characteristic of monocycle waveform in coal mine uwb communication system

    礦井超寬帶通信系統中單脈沖波形特性分析
  12. As the uwb characteristics are represented at not only directional diagram and impedance bandwidth but also phase distortion

    由於超寬帶特性不僅僅體現在方向圖和阻抗的帶寬上，而且要考慮其相位失真。
  13. In chapter 2, the pcss are manufactured and two technics are introduced. the practical flow is given. meanwhile the linear operational mode and nonlinear operational mode of pcss are analyzed in chapter 3, after simulating time - space distribution of electron and hole in photoconductor, the relations of laser energy, laser character and photoconduction are analyzed and the fundamental principles of nonlinear phenomenon is introduced

    在第一章中，介紹了本論文的研究背景，簡要回顧了超寬帶光導脈沖源的發展歷史，同時概括了本論文的主要工作。在第二章中，介紹了光導開關的製作及工作原理，詳細闡述了實際的加工流程，並分析了其線性和非線性兩種工作模式。
  14. Ultra - wideband electromagnetic radiation from gaas photoconductive switches

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

    光導開關在超寬帶雷達中的應用
  16. It points out that the uwb signal can be reconnoitered efficiently with sub - sampling method. 3

    說明了利用欠采樣方法對超寬帶線性調頻信號偵察的可行性。
  17. Duo to the intrinsic characteristics of the gaas material, serai - insulating ( si ) gaas photoconductive semiconductor switches ( pcss " s ) have more obvious advantages in the performance of both high power and ultra - fast switching than those pcss " s made of other materials and then can be widely used in ultrahigh speed electronics, field of high power microwave generation and pulse forming ( pulse sources of high power ultra - fast electromagnetism, ultra - wide - band microwave generator )

    半絕緣gaas光電導開關（ photoconductivesemiconductorswitches簡稱pcss ' s ）具有兼備寬頻帶和高功率容量特性，使其在超高速電子學和大功率脈沖產生與整形技術領域（大功率亞納秒脈沖源、超寬帶射頻發生器等）具有廣泛應用前景。
  18. Space - time trellis coding for uwb systems based on different modulations

    基於多種調制方式的超寬帶空時網格編碼
  19. The main research works of this dissertation are aimed to design of radar waveform and the application of wavelets in ultra - wide radar, including : the design of a new kind of hybrid radar and the research of time side - lobe suppression for pulse compression, the design of receiver r adio front end in data acquisition of ultra - wide band radar, the time delay estimation based on wavelets ( packet ) analysis

    本文主要進行雷達波形設計研究以及研究小波理論在超寬帶雷達中的應用，集中體現在以下幾個方面：一類新的組合雷達波形設計及壓縮脈沖時間旁瓣抑制技術研究、超寬帶雷達多通道數據採集方法中前端射頻接收部分的設計及研製、基於小波（包）方法的時延估計方法。
  20. Then the nonlinear coupled electromagnetic and electron motion equations were obtained from the lorentz equation. and numerical calculation and analysis of cold cavity by pic software were applied to analyze the both hot and cold dispersion characteristic of this waveguide

    接下來，從電子運動方程出發得到了自洽非線性方程組，通過一階線性近似導出了螺紋波導中注波互作用色散關系，從中分析該波導超寬帶特性。
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