調幅干擾 的英文怎麼說

中文拼音 [diàofúgānrǎo]
調幅干擾 英文
amplitude modulation jamming
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 幅 : Ⅰ名詞1. （布帛、呢絨等的寬度） width of cloth 2. （泛指寬度） width; size 3. （姓氏） a surname Ⅱ量詞（用於布帛、呢絨、圖畫等）
  • 干 : 干Ⅰ名詞1 （事物的主體或 重要部分） trunk; main part 2 （幹部的簡稱） short for cadre Ⅱ動詞1 （做...
  • 擾 : Ⅰ動詞1 （擾亂; 攪擾） harass; trouble 2 （客套話 因受人款待而表示客氣） trespass on sb s hospital...
  • 調幅 : [電子學] amplitude modulation （am）; amplitude調幅發射機 amplitude modulated transmitter; 調幅 ...
  1. 4. the signal data collected in expteriment are taken out in emulational research of system experiment. many methods such as adding window in frequency field, eliminating static object and so on restrain the width and sidelobe of static mussy weaves and detect out the target availably

    4 、在系統實驗模擬研究中調出實驗採集信號數據，使用頻域加窗不加窗、清除靜態目標等方法很好地控制了靜態雜波干擾的幅度及旁瓣，有效地檢測出了目標。
  2. To improve anti - jamming technique by spread spectrum close to monochromatic frequency, so that enhance the ability of anti - active - jamming and anti - passive - jamming, anti reconnaissance, anti - radiation missile, anti - stealth, by means of multi frequency spread spectrum and hopping spectrum instead of mono - frequency spread spectrum, realizing strong processing system for anti - interference signal, providing the method of generating of chirp signal and corresponding matched filter system

    摘要為改進線性調頻雷達系統所採用的在單色頻率點附近擴譜抗干擾技術，加強制導雷達站具備抗有源、無源干擾，反偵察，抗硬殺傷的反幅射導彈和反隱身的能力，通過將單頻點擴譜改為多頻點擴譜跳譜，實現了高抗干擾信號處理系統，給出方案中在中頻段實現的線性調頻信號產生方法以及對應的匹配濾波處理系統。
  3. We modulate the amplitude of the continuous single tune jamming by noise and produce the continuous noise - modulated jamming. this kind of jamming is effective to pc radar including linear frequency - modulated radar and bi - phase coded radar

    在對單頻正弦波進行噪聲調幅后形成的噪聲調幅干擾對線性調頻雷達和二相編碼雷達都是有效干擾，其干擾特性和射頻噪聲干擾類似。
  4. 2 the electromagnetic compatibility ( emc ) of the new radio induction system is analyzed, this paper studies the affections for the new radio induction system excited by the conductive interference and radiated interference, this paper also studies the affection to the out - space environment excited by the new radio induction system. 3 this paper studies the applications in analog carrier communication for the new radio induction system from the mod - d

    2研究了新型無線感應系統的電磁兼容性，分析了傳導干擾對新型無線感應系統的影響，分析了輻射干擾對新型無線感應系統的影響；分析了新西南交通大學博士研究生學位論文第11頁? ? 3主要從調幅（ am 、 dsb 、 ssb ） 、窄帶調相（ nbpm ） 、窄帶調頻（ nbfm ）等調制解調中研究了新型無線感應系統在模擬載波通信中的應用並進行了模擬，研究了上述調制解調相應的解調增益。
  5. Some functional blocks are set up with the basic block provided by spw, and some is programmed with c language. after the simulation of pulse compress mtd radar, the effect of some jamming signals is analyzed. especially, the jamming signal of high pulse repeat frequency is discussed

    完成脈沖壓縮mtd雷達的建模以後，又討論分析了幾種常見的干擾式樣，如噪聲調幅干擾、噪聲調頻干擾等，著重討論了高重頻噪聲調頻脈沖信號的干擾效果，並對幾種不同形式信號的干擾效果進行了比較和分析。
  6. Some valuable conclusions are summarized by theoretical analysis and simulation experiments : from the side of signal processing, pulse jamming can be deleted by the method of time - domain sliding window accumulation and can be restored by interpolative prediction. ; gauss white nose can be attenuated while jamming disperse point - target by the method of time - frequency analysis in time - frequency domain. ; radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain

    通過大量的理論分析和模擬實驗，得到了一批具有一定價值的結論：從信號處理的角度出發，對于脈沖式干擾，能夠運用時域滑動窗口積累的方法去掉，並且通過預測插值得到較好的恢復；對于高斯白噪聲干擾，在時頻變換域內應用時頻分析方法可減小其對分散點目標的干擾；對于射頻噪聲，通過平均距離頻頻法和頻域陷波的方法可以去掉；從改變合成孔徑雷達系統角度出發，類似雙基地雷達能夠避免各種干擾，對發射信號進行調幅，調相以及改變調頻斜率都是較好的抗干擾方法。
  7. The reasons of the signal distortion are analyzed, and the relations of receiving bandwidth with distortion degree is discussed, for the more a steady point in the amplitude modulation signal is given by the method of the statistics. looking at the point as the timing reference point of the receiver, the stability of the receiver is less than 100us

    分析了接收信號失真和受干擾的原因所在，論述了接收帶寬和失真程度的關系，並在此基礎上，利用統計的方法在調幅信號的下降沿上找到了一個較為穩定的特徵點，將其作為接收機的定時參考點，定時不確定度可以達到數十微秒量級。
  8. The sensor is matched with amplitude modulation operation measurement circuit, and relevant anti - jamming step is adopted. the sensor ' s resolving power is up to lg / m2 or 1 v m

    傳感器配以調幅運演算法檢測電路，並採取了相應的抗干擾措施，使測量精度達到了1g m ~ 2 。
  9. Drm is a technology aims to improve sound quality of am transmission below 30 mhz and to reduce interference common in medium wave environment. new compression technologies known as mpeg4 advanced audio coding ( aac ) and spectral band replication ( sbr ) are employed to offer sound quality comparable to that of fm transmission

    它是針對30mhz以下的調幅（ am ）廣播而設計，大大提高了音質，並改善了中波廣播較易受干擾的情況；系統採用最新的壓縮技術mpeg4advancedaudiocoding （ aac ）和spectralbandreplication （ sbr ） ，音質足可與fm廣播媲美。
  10. Drm is a technology aims to improve sound quality of am transmission below 30 mhz and to reduce interference common in medium wave environment. new compression technologies known as mpeg4 advanced audio coding and spectral band replication are employed to offer sound quality comparable to that of fm transmission

    它是針對30mhz以下的調幅am廣播而設計，大大提高了音質，並改善了中波廣播較易受干擾的情況系統採用最新的壓縮技術mpeg4 advanced audio coding aac和spectral band replication sbr ，音質足可與fm廣播媲美。
  11. It has been proven that the spread spectrum technologies have good capabilities of overcoming isi in electromagnetic wireless channel. the feasibilities of their applications to underwater acoustic channel have been analyzed, the frequency hopping technology is chosen. instead of using time - frequency diversity, convolutional coding and viterbi decoding are employed to combat signal fading, consequently the bit - rate and bit - error - rate performance of the underwater acoustic voice communication system can be balanced and controlled

    由於擴頻技術在抗碼間干擾方面具有優良的特性，因此在分析了各種擴頻技術于本研究應用的可行性之後，確定了跳頻技術作為具體實現方案；在克服幅度衰落方面，選用卷積編碼和維特比譯碼方法來替代原有的分集技術以綜合調節系統的通信速率與誤碼性能，達到差錯可控的目的。
  12. Two wedge interferometers are designed that the thickness of one is higher than the other. so when the incident coherent light through the interferometers can acquire two fringe patterns which having space shift, but the incident incoherent light only result in consistent intensity signal. through a differentiating amplifier, two signals subtract which can eliminate noise of background and result in higher contrast ratio fringe signals. this method largely improves the system and the ability of detection. the spacing of line fringes is a function of incident laser wavelength, by analyzing, we can extract the wavelength of incident laser. the optical unit analyzing and results also simulated with matlab

    當背景光入射時，直接穿過干涉儀，僅發生強度的衰減，在兩個探測平面上產生幅度基本一致的灰度信號，通過差分放大器，相消為零，從而抑制了背景干擾。當激光信號入射，穿過干涉儀時受到調制，在探測平面上產生干涉條紋。通過所設計的存在平均厚度差的雙楔形干涉儀，兩路干涉條紋圖案出現相對移位：在兩個探測平面對應的位置上，一路出現亮紋，另一路出現暗紋。
  13. Then on one hand, author makes researches of anti - jamming against pulse jamming 、 gauss white noise jamming and radio frequency noise jamming from the side of signal processing. author exercises much signal processing knowledge of time - domain sliding window accumulation 、 wavelet analysis 、 time - frequency analysis and linear prediction and carries out many simulation experiments. on the other hand, author proposes the anti - jamming methods of using a sar similar to double - base radar and modulating the amplitude 、 the phase of emission signal and changing the frequency modulation slope from the side of changing sar system model

    作者首先提出了合成孔徑雷達抗干擾的定義、分類以及評價抗干擾方法好壞的主客觀標準；然後，一方面從信號處理的角度出發對脈沖式干擾、高斯白噪聲干擾以及射頻噪聲干擾進行了抗干擾研究，其中運用了時域滑動窗口積累，小波分析，時頻分析以及線性預測等信號處理知識，做了大量的模擬實驗；另一方面，本文基於改變合成孔徑雷達系統模式提出了利用類似雙基地雷達來抗干擾，以及對發射信號進行調幅、調相以及改變調頻斜率來抗干擾，同樣做了相應的模擬實驗。
  14. The so - called automatic recognition of modulation ( amr ) schemes automatically classifies the modulation types from the samples of received signal by abstracting the related features such as amplitude, frequency, and phase, followed by employing proper recognition algorithms based on the fast digital signal processing techniques and advanced computing technology. the result of amr can be used in the following processing blocks such as demodulation, supervision processing and anti - interference processing and so on

    所謂調制類型自動識別（ amr ）是根據接收信號樣本提取出振幅、頻率和相位的特徵參數，然後藉助信號處理技術和計算機快速處理能力，採用合理演算法進行處理，從而實現對未知已調波調制類型的自動識別，為后繼的解調、監控、抗干擾等處理奠定基礎。
  15. Simulation of computer and dynamic experiments show : the sofpss has such characteristics as small overshoot, fast response speed, avoidable micro - amplitude oscillation and is not sensitive to changes of operating modes and external disturbances. the sofpss can effectively damp low - frequency oscillation in a large range and takes on strong adaptability

    計算機模擬和動模實驗結果表明： sofpss超調小、響應速度快，且避免了微幅振蕩；對運行狀態的變化以及外界干擾不敏感，能夠在較大的運行范圍內有效地抑制振蕩，適應能力較強。
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