無線電調制 的英文怎麼說

中文拼音 [wúxiàndiàndiàozhì]
無線電調制 英文
radio modulation
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 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...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 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...
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  • 無線電 : radio; wireless無線電愛好者 radio amateur; amateur radio; 無線電報警 radio warning; 無線電報務員 ...
  • 無線 : wireless無線電報 wireless telegram; radiotelegram; 無線話筒 radio microphone ; 無線裝訂 unsewn binding
  1. On the base of researching the theory of the scheme and analyzing the signal feature, it is obtained that the existence manners and character of distance information in the differential frequency signal. at the same time, a new conclusion is gained that the technology of frequency agility can decrease the constant error of system. it is also to say that frequency agility and frequency modulation fixed - distance fuze has the similar feature to random period frequency modulation fixed - distance fuze. according to the theory of address coding in the hopping - frequency communication, the paper presents the principle of selecting the frequency agility sequence which fit to the radio fuze and constructs the frequency agility sequence family based on the rs codes

    在深入研究方案原理和分析信號特徵的基礎上，獲得了該體制引信差頻信號中，距離信息的存在形式和特點，得出了頻率捷變技術的引入降低了系統定距固定誤差這一新的結論，即頻率捷變調頻定距引信在定距性能上具有類似隨機周期調頻定距的特徵。本文引入跳頻通信地址編碼理論，結合無線電引信的具體特徵，提出了適用於無線電引信的頻率捷變序列的選擇原則，並構造了基於rs碼的寬間隔頻率捷變序列族。
  2. In this thesis, firstly, we put forward a new algorithm of the synchronization of carrier reference phase, that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication. we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ), and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage

    我們對兩種正交調制方式（ 16qam和4 - qpsk ）進行了模擬工作並給出了模擬結果，同時討論了碼元同步定時誤差對鎖相環路工作的影響並根據流星通信中使用變速率傳輸時鎖相環路的載波同步性能進行了測試；然後在基於軟體無線電思想的數字處理平臺（該數字處理平臺實現了中頻數字化）上用dsp軟體完成了載波的相位跟蹤。
  3. Methods of measurement for radio equipment used in satellite earth stations - part 2 : measurements for sub - systems - section seven - frequency modulators - section eight - frequency demodulators

    衛星通信地球站無線電設備測量方法第2部分:分系統測量第7節:頻率調制器第8節:頻率解調器
  4. Compared to the analogy or the base - band sampling solution, this structure not only enhanced the system mobility, the flexibility and stability, but also reduced the cost, moreover it may be a public platform, which realize multi - purpose and multi - service patterns communication signal despread and demodulation, has fully reflected the thought of software radio

    與採用模擬或基帶采樣解擴解調方式相比，這種結構既增加了系統的機動性、靈活性和穩定性，同時價格大幅下降，而且可以作為一個公用平臺，實現多功能、多制式通信信號解擴解調，充分反映了軟體無線電的思想。
  5. The automatic identification of the modulation types has been applied to many fields such as source identification, interference identification, radio interception, - electronic countermeasures, etc. the modulation recognizer based on the decision - theoretic approach and the constellation diagram is proposed and the signal ' s kurtosis is used as the indicator to differentiate the analogue modulation from the digital modulation

    通信信號調制類型的自動識別廣泛應用於信號確認、干擾辨識、無線電偵聽、電子對抗和信號監測等領域。本文提出基於決策論與星座圖的綜合調制識別器，使用信號的峰度區分調制類型是模擬調制還是數字調制。
  6. First, how to conduct sample and quantification of continuous time signal which is prior condition of sdr is explored in detail, and the comparison and analysis of some sample modes are given in which band pass signal sampling theorem is most important. second, multi - sample rate signal processing which is an important basis of sdr is studied. emphasis are put on decimation and interpolation those are the most fundamental process and the realization of decimation and interpolation filter

    在基於中頻采樣的軟體無線電結構框架下，首先詳細探討了軟體無線電的前提條件，即如何對連續時間信號進行采樣量化，比較分析了幾種采樣的方式，其中最為重要的是帶通信號采樣定理；然後探討了軟體無線電的一個重要基礎，即多采樣率信號處理，重點討論其最基本的兩個過程抽取和內插以及抽取器和內插器的實現；接著介紹了結構簡單、適用於一級抽取的cic濾波器和適用於做2倍抽取的半帶濾波器；再次論文在總結了傳統的調制解調基礎上，結合軟體無線電器件的特點，系統的探討並實現了基於正交思想的am 、 fm 、 ask 、 fsk 、 bpsk 、 qpsk的正交調制解調演算法。
  7. Is responsible for regulating the telecommunications industry in hong kong. its responsibilities include economic regulation, technical regulation, enforcing fair competition rules, setting technical standards, co - ordinating the development of the telecommunications infrastructure, investigating consumers and industry complaints, managing the radio spectrum, providing advice to the government on telecommunications matters and representing hong kong in international telecommunications organisations

    負責監管香港的電訊業，其范圍包括經濟規管，技術規管，執行公平競爭條款，制訂技術標準，協調電訊基礎建設的發展，調查消費者和業界的投訴，管理無線電頻譜，就電訊事宜向政府提供意見，以及代表香港參與國際電訊組織。
  8. The potential applications of amr include both civil and military communication, especially non - cooperative communications and communication confrontation, such as identifying signals, supervising signals, distinguishing interference, electronic confrontation, analyzing military threat, etc. on the basis of our analysis to the existing research on feature abstraction, the related feature abstraction methods are optimized in this paper, resulting several effective methods such as the feature abstraction based on transformation domain, stepped voltage level analysis, normalized carrier - free spectral energy analysis, squared signal and fourth powered signal analysis, etc. both the decision theory based on recognition algorithms and the artificial neural network ( ann ) based on recognition algorithms is analyzed, and the former is selected as it is more appropriate for this research

    調制類型的自動識別廣泛應用於民用通信與軍用通信，尤其是對于非合作性通信、通信對抗，比如：信號確認、信號監控、干擾辨識、電子對抗、軟體無線電、電子救援、通信對抗、軍事威脅分析等。本論文在分析現有研究的基礎上，借鑒了已有的特徵提取方法，對相關調制類型特徵提取方法進行了優化，使用了一些有效的方法，如基於變換域特徵提取方法、梯層電平分析方法、剔除載波后的歸一化頻域能量分析方法、信號平方后的頻譜分析方法、信號四次方后的頻譜分析方法等。通過對基於決策理論和基於人工神經網路兩種識別演算法進行分析，本論文選擇了較適合的基於決策理論的識別演算法。
  9. Land mobile radio transceiver performance recommendations, project 25 - digital radio technology, c4fm cqpsk modulation

    項目25 .地面移動無線電收發兩用機的性能推薦. c4fm cqpsk調制數字無線電技術
  10. Am minimum standards - citizens band radio service amplitude modulated transceivers operating in the 27 mhz band

    最低標準. 27 mhz帶寬工作的城市帶寬無線電業務收發兩用機調制幅度
  11. Methods of measurement for radio transmitters ; part 3 : wanted and unwanted modulation

    無線電發射機測量方法.第3部分:有用調制和無用調制
  12. Methods of measurement for radio transmitters. part 3 : wanted and unwanted modulation

    無線電發射機的測量方法.第3部分:有用調制和無用調制
  13. Our object is an intermediate frequency modem of a software defined radio transmitter - receiver of multi - service, multi - modulationmode and multi - processdatarate. first, related software defined radio theory is introduced ; later, channels of transmitter - receiver are designed with consideration of data format, modulation, fec, interwaving. and scrambling ; emphasis is placed on theory and implementation of an audio compression algorithm cvsd ( continuous variable slope delta modulation ) and a fec technique convolutional coding - decoding

    本文首先介紹了相關的軟體無線電理論；然後完成了包括數據格式，調制方式，糾錯碼方式，交織器和擾碼器等部分的中頻數據機通道設計；接著著重介紹了系統中使用的音頻壓縮演算法cvsd （連續可變斜率增量調制）的原理和實現，以及作為前向糾錯碼的卷積碼編碼理論和編解碼的高效實現。
  14. Cept - pr - 27. radio equipment and systems. angle - modulated citizens ' band radio equipment cept pr 27 radio equipment. technical characteristics and methods of measurement

    無線電設備和系統.角度調制的民用波段無線電設備
  15. This paper mainly focuses on the combination of ofdm system with the software radio technology and presents ofdm transceiver scheme based on software radio platform

    本文將軟體無線電技術和ofdm多載波調制技術相結合，提出了基於軟體無線電平臺的ofdm多載波傳輸系統方案。
  16. Along with the development of the technology of the wireless communication particular the modern modulation and software radio technique, meantime the employ of wireless frequency are more presser, the development of the receiver tend towards high performance and high integration

    隨著無線通信技術特別是現代調制體制和軟體無線電技術的快速發展，且無線頻譜的擁擠程度日益加劇，無線電接收機在設計和實現上越來越趨向于高性能、高集成度方向。
  17. As a result, some key technologies of sdr such as modulation, demodulation, ddc and dug have been hot topics. in this paper, some key technologies of sdr are researched deeply

    於是，軟體無線電中的一些關鍵技術，例如：調制解調技術，數字上變頻，數字下變頻等成為該領域的研究熱點。
  18. First, the paper studies the general platform of analog and digital communication signal modulation and demodulation based on software radio and verifies it with simulation by matlab

    本文首先研究基於軟體無線電的模擬、數字通信信號調制解調通用結構，並使用matlab編制了基於軟體無線電調制解調模擬軟體。
  19. Ofta s work in this aspect includes licensing and regulation of services ; setting equipment and network connection standards ; type - approving telecommunications equipment ; administering the numbering plan ; handling issues concerning access to land and provision of physical facilities for the installation of networks, including the co - ordination of access to buildings by operators and laying of ducts for telecommunication cables in public roads ; and handling and investigating consumer complaints pertaining to suspected breach of provisions in the telecommunications ordinance and licence conditions

    包括規管電訊服務及簽發牌照、制定電訊器材及網路接駁的標準、檢定無線電器材類型、管理電訊服務號碼計劃、處理有關進入土地和提供有形設施作網路裝設用途的事宜，包括協調營辦商進入樓宇及在公用道路為通訊電纜鋪設管道，以及處理和調查與涉嫌違反《電訊條例》和發牌條款有關的消費者投訴。
  20. Methods of measurement for radio transmitters. part 14 : external intermodulation products caused by two or more transmitters using the same or adjacent antennas

    無線電發射機的測量方法.第14部分:使用同樣天線或鄰近天線的兩個或多個發射機所產生的外部相互調制產物
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