pulse code modulation system 中文意思是什麼

pulse code modulation system 解釋
脈沖碼調制系統
  • pulse : n 1 脈搏;有節奏的跳動;【動物;動物學】脈沖(波);脈動。2 意向;傾向。3 【音樂】拍子,律動。vi ...
  • code : n 1 法典;法規。2 規則,準則;(社會、階級等的)慣例,習俗,制度。3 (電)碼,代碼,密碼,暗碼;...
  • modulation : n 調整,調節;(聲調的)抑揚,變化;【音樂】轉調,變調;【無線電】調制。 amplitude modulation 振...
  • 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. Pulse code modulation communication system hierarchy

    脈沖編碼調制通信系統系列
  2. The pulse code modulation / frequency modulation ( pcm / fm ) is widely used in most reentry remote sensing ( rrs ) system at the present time in our country

    目前我國再入遙測系統主要採用脈沖編碼調制/調頻( pcm / fm )體制。
  3. Research shows that the pulse code modulation ( pcm ), the operating system of the cd, has limitations that so far cannot be overcome

    脈膊把調音( pcm )編碼的研究表演,那操作激光唱碟的系統,有限制以到現在為止不能夠被克服。
  4. In this thesis, the signal express format and characteristic of pulse internal phase modulation and pulse external frequency agile is introduced, and the signal design is processed based on the demand of radar system, the restriction of parameter design and various code format

    本文首先介紹了脈內調相脈間跳頻信號的表達形式和特點,並根據雷達系統的需求和參數設計的約束條件以及不同的編碼形式進行了信號的設計。
  5. Then we introduce pulse position modulation ( ppm ) using pn code and analysis its multi - access performance, system capacity and power spectrum density. on the basis of those analyses, we study the pulse shape and the anti - jamming ability of the system. at last, multiple access with pseudochaotic time hopping is introduce

    本文首先闡述了uwb脈沖通信系統的基本原理,重點介紹了用偽隨機碼跳時的ppm (脈沖位置調制)調制,分析了他的多址性能、系統容量和功率譜密度,在此基礎上研究了改進性能的發射信號形狀和系統抗干擾能力,最後介紹了偽混沌碼跳時的多址方式。
  6. The system has a good security and can prevent the pervasion of mistake code, has a well anti - jamming ability and so on. some substantial and groping work has been done in the process of using chaos security communication in pulse wireless system and the multi - access communication of chaotic pulse position modulation

    系統具有很高的保密性,具有防誤碼擴散,抗干擾能力強等特點,同時也為混沌保密通信應用於脈沖無線電系統以及混沌脈沖位置調制的多址通信方面做了一些實質性和探索性的工作。
  7. Chapter is the most important part in this paper, we used pulse position modulation ( ppm ) and maxim - likelihood demodulation to increase the power efficiency, improve the ber, also we used rs ( reed - solomon ) code to correct the bunched bit error because of the atmosphere scintillation. with the ppm modulation / ml demodulation method and rs code, the performance of the system improved to a new stage

    第四章是對無線光接入的調制解調和編碼技術的分析,也是本文的重點,比較了ppm調制和ook調制的帶寬和功率利用率、硬判決解調和最大似然解調對系統性能的改善,以及採用rs糾錯碼對系統性能的改善。
  8. Uast is equipped with the complex radar system of both continuous wave pseudorandom code phase modulation and mono - pulse amplitude comparison ( crs ), and crs measures and gets target ' s position information

    在坦克超近反導系統中,裝備偽碼調相連續波與單脈沖幅度比較復合體制雷達,用於測量目標的位置信息。
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