signal modulation 中文意思是什麼

signal modulation 解釋
信號調制
  • signal : n 1 信號，暗號；信號器。2 動機，導火線 （for）。3 預兆，徵象。adj 1 暗號的，作信號用的。2 顯著的...
  • 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...
  1. Not only the neurons but also the as in the rat brain play a very important role in the process of the peripheral nociceptive stimulation ; ? he newly - found eda may be the functional intercommunication ultrastructure between neurons and as, through which the as could modulate the neurons in the pain signal processing ; @ as might play an active and important role for modulation of pain through a new pathway from the peripheral afferent nerve to the as, then to neurons via electron - dense areas forming the glia - neuron s ignaling network

    光、電鏡水平發現as與神經元之間有多種途徑進行信息交流，新發現的eda有可能是神經元與as之間信息交流的結構之一。阻斷as與神經元間信息交流連接后，前者對外周組織4第四軍醫大學博士學位論文損傷所致疼痛的反應不受影響，而後者的反應明顯受到抑制，提示在非病理性疼痛反應中，膠質細胞對神經元具有主動調控作用。
  2. 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。
  3. For phonetic signal modulation, if the pass band range of the band pass filter ( bpf ) is 300hz - 3400hz, the anti - noise properties of laser are approximately independent of bias current and parameters of the cavity ; when the pass band range of bpf increases to a certain degree, modulating bias current and parameters of the cavity can improve the anti - noise properties of laser

    對語音調制情況，如帶通濾波器的通帶范圍取為300hz - 3400hz ，則激光器的抗噪聲性能基本不依賴于偏置電流和腔內參數；當帶通濾波器的通帶范圍增大到一定程度，調整偏置電流和腔內參數可以實現半導體激光器的高抗噪聲性能。
  4. The method of hvdc small signal modulation is applied to enhance the small signal stability of the system ; the results are investigated based on the prony method

    採用prony方法，研究了直流小信號調制對提高低頻振蕩阻尼的作用。
  5. 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。
  6. In order to solve the problem of weak fluorescence, the signal modulation circuit and signal demodulation program were designed

    針對熒光信號比較微弱的問題，本文設計了光纖倏逝波生物傳感器系統的信號調制電路和信號解調程序。
  7. On the basis of rate equations of frsl, power characteristics and extinction ratio of the converted light are discussed. the relation between relaxation oscillation, small - signal modulation response, modulation bandwidth and the length of fiber ring cavity is analyzed also

    根據frsl滿足的單模速率方程，討論了採用frsl進行波長轉換時轉換光的功率特性和消光比，以及frsl的弛豫振蕩特性、小信號調制響應、調制帶寬與光纖環形腔長度的關系。
  8. In order to reduce the influence of the laser diode ’ s heat effect, a thermal control device is designed to make laser diode work under a stable temperature. the principle and application of ic - wkn is researched adequately. a signal modulation circuit including d / a converter and chip computer is designed

    由於溫度變化也會影響到半導體激光器的正常工作，為了減小環境溫度變化和激光器的熱效應對激光器本身及其輸出造成的影響，本文將半導體激光器和溫度控制裝置設計在一起，使激光器能夠在恆溫下工作。
  9. The accelerometer used by fuze affects the precision of fuze system directly ; the accelerometer signal modulation and the design of advanced fuze algorithm ensure the fuze system could work reliably and in time

    引信用加速度計直接影響引信系統精度;而加速度信號調理和先進的引信演算法設計保證引信系統實時可靠地工作。
  10. Secondly, we used the dsp assembly language to perform the carrier phase tracking based on a digital processing system. this system is designed according to the idea of software radio. this digital processing system realized the intermediate frequency digitalization. with the diverse configuration of the digital upconverter and digital downconverter in this system, it can carry through many signal modulation modes. and because the carrier phase trac king is performed using software in dsp, it brings great convenience to this system and makes this system available in many digital communication systems

    在該數字處理平臺上可通過加載不同的軟體對平臺中的數字上下變頻器進行靈活的配置以實現不同的數字調制解調制度，通過將載波的相位跟蹤工作放在dsp軟體中進行帶來了很大的靈活性，能夠適用於當前許多種數字通信系統。
  11. Hfc ( hybrid of fiber and coax ) network is a competitive means to support wide varieties of video, voice and data services. the thesis describes and analyzes the system framework, frequency assignment and signal modulation schemes of hfc. recently hfc and adsl are aggressive among broadband access technologies

    本文對hfc網的系統結構、網路拓撲、頻譜分配方案和業務信號的調制方式等進行了詳細的闡述和分析，並且全面地比較了hfc和adsl的優缺點，總結出hfc具有較高的性價比，是我國寬帶接入網的優選方案。
  12. Another method is based on the multi - resolution property of the wavelet. because different signal modulation has different characteristics at certain resolution, the specific signal information at different resolution are used a vector of signal features to identify signal modulation by rbf neural network. computer simulations show the methods proposed has good performance even in low snr ratio

    基於小波的多解析度特性，在本文中利用小波分解獲取信號在不同分解水平下的細節信息，將這些細節信息構成特徵向量，由於不同信號類別具有不同的細節信息，於是可以將這些特徵向量通過徑向基函數（ rbf ）神經網路進行訓練與識別數字調制信號。
  13. Digital receiver and its forepart operational principle are discussed, then methods of instantaneous autorelation, short - time fourier transform, wigner distribution and wavelet analysis are introduced in detail. the advantages and disadvantages and the application range of these algorithms are given. based on the merits of these algorithms, a new method for signal modulation type analysis is presented

    本文討論了數字接收機以及前端的工作過程，然後詳細闡述了瞬時自相關、短時傅立葉變換、 wd演算法、過零檢測和小波分析等各種演算法在脈內調制分析上的應用，分析了各演算法的優缺點，提出一種并行處理模式：即針對不同的信號採用不同的演算法對脈內調制信號進行分析。
  14. The design procedure of damping controllers is presented, including pss, hvdc small signal modulation and tcsc modulation

    描述了基於prony方法的控制器設計過程，包括pss ， tcsc和直流小信號調制。
  15. In this thesis, based on chaotic switching signal modulation, we study the effect on reducing emi of smps

    本論文對混沌開關調制技術降低開關模式電源電磁干擾水平問題進行了深入研究。
  16. 3. in the face of analog channels design, we took use of the ic chip to design the signal modulation module, data acquisition and peripheral circuits

    3 .前端模擬通道設計，採用集成電路晶元，對信號調理模塊、數據採集和外圍電路進行設計，完成相關硬體pcb版圖繪制。
  17. Numerical analysis of the signal modulation effect in bistable stochastic dynamical systems

    雙穩隨機動力系統信號調制噪聲效應的數值分析
  18. This project is on - line automatic recognition of the satellite signal modulation mode. it accomplishs a general signal analysis system based on the theory of softwareradio

    本項目對衛星信號的調制方式進行在線自動識別，依據軟體無線電的基本思想建立了一個通用信號分析平臺。
  19. And the spreading modulation, radiation signal modulation and choosing of waveform parameters are also discussed, which is the base of the receiver designing

    同時對擴頻調制方式、射頻信號調制方式以及波形參量的選擇進行了重點的論述，並對擴頻通信系統的相關指標進行了計算。
  20. Chapter 3 discuses the selection of damping controllers, especially for pss, hvdc small signal modulation and tcsc modulation

    分析了阻尼低頻振蕩的控制器選擇，主要闡明了pss ， tcsc和直流小信號調制的應用場合。
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