demodulation method 中文意思是什麼

demodulation method 解釋
解到式
  • demodulation : n. 【無線電】解調，反調制；檢波。
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. The method is given to solve the problem in adaptive demodulation that adjudgement will worsen when the snr is low. by using the error signals to reduce the demodulated signals, the bit error rate will be improved

    模擬中，針對dpsk信號的自適應解調中小信噪比下門限失效的問題，提出了利用誤差改進門限判決的方法，將誤碼性能提高了1 2db 。
  2. Phase demodulation method of optic fiber sensor based on labview

    的光纖傳感器相位解調技術
  3. Digital frequent demodulation method of control system ' s fsk signal

    信號的數字頻域解調方法
  4. Study of digital demodulation method for dpsk - pm modulated signals

    調制信號數字解調方法研究
  5. A digitizing demodulation method of pm signal

    調相信號的數字化解調
  6. An ameliorative demodulation method of raman temperature sensor

    喇曼溫度傳感器的一種改進解調方法
  7. Abstract : based on analysis of the operational principle of the traditional inductosyn digital display meter in the paper, the contradiction between detecting resolution ratio and antidisturbance ability is discovered. and then, to resolve the contradiction, the method of demodulation technology and high frequency excitement technology being used is advanced

    文摘:通過分析傳統鑒相型數顯表的工作原理，揭示了其檢測解析度與抗干擾能力之間的矛盾，並提出了採用差頻解調和高頻激磁等技術解決矛盾的方法。
  8. In the thesis, a signal processing scheme of polarization - insensitive fiber optic michelson interferometric magnetic sensor is described : making the interferometer work near the quadrature with closed loop controlling working point method, the fundamental frequency component of the magnetic field sensing signals can be detected to measure the input direct current ( dc ) magnetic field by phase sensitive demodulation

    本文主要介紹了偏振無關光纖michelson干涉型微弱磁場傳感器信號處理的方案:通過閉環控制工作點演算法使干涉儀工作在正交工作點處，再利用相敏檢波演算法提取傳感器輸出信號的基頻分量，以測量直流磁場的大小。
  9. The method and performance according to the requirements are resolved mostly. main contents as follows : ( 1 ) according to the demodulation guideline, a differential detection system is applied to the dpsk signal demodulator, which is based on the analysis and comparison using the principle of optimal binary signal detection

    著重解決在皮衛星體積結構，重量和功耗限制條件下的方案選擇和性能問題，具體內容包括： （ 1 ）對一般二進制信號的最佳檢測原理進行分析比較，針對本系統要求選擇了dpsk信號差分檢測系統的方案。
  10. A demodulation method of gear phase modulation vibration signal based on spatial sampling

    基於空間采樣法的齒輪調相振動信號解調
  11. Firstly, on the base of analyzing psk ' s theory and audio - card ' s constitute and data transfers, bdpsk and qdpsk soft - modulation and soft - demodulation systems based on audio - card are studied and implemented, including generating digital carrier sequence, synchronizing carrier, designing filter, sampling and judging, etc. the system adopts coherent demodulation method, synchronizing carrier adopts costas loop

    本文首先分析了調相信號調制解調的基本理論和多媒體計算機（ mpc ）聲卡組成原理及數據傳輸等方面的內容，然後研究並實現了基於計算機聲卡的bdpsk和qdpsk信號軟體調制解調系統，內容包括數字載波序列的產生、載波同步、濾波器設計，信號的抽樣判決等。
  12. The demodulation method contributes in how the sensors work, the range of the sensors " application and their performance. thus the research of novel demodulation precept is of great essentiality

    解調技術關系著傳感器的工作方式，應用范圍和性能，因此研究新型的解調技術，並進一步設計高性能光纖光柵傳感器是一個非常重要的研究方向。
  13. Secondly, a dstft ( discrete short time fourier transform ) - based demodulation method for the 2fsk signal is studied and algorithms for symbol synchronization and symbol decision are analysed

    重點研究了基於離散短時傅里葉變換解調2fsk信號的方法，分析了幾種碼元同步演算法和碼元判決演算法。
  14. Application of envelope demodulation method to fault diagnosis of spring invalidation

    包絡解調法在氣閥彈簧失效故障診斷中的應用
  15. The demodulation method of fiber grating is the key method of fiber grating sensor. the main demodulation method includes : grating matching method, tunable fabry - perot cavity method, non - balance mach - zehnder interferometer method and tunable narrow - band light source method. the tunable fabry - perot cavity method is discussed in detail, and a demodulation system based on dsp is put forward

    光纖光柵的解調技術是光纖光柵傳感器的關鍵技術，本文討論了光纖光柵的波長解調方法，包括匹配光柵法、可調諧f - p腔法、非平衡mach - zehnder干涉儀法和可調諧光源法等，詳細分析了可調諧f - p濾波器的特性和解調原理提出了一種基於dsp的解調光纖光柵波長的可調諧法布里一珀羅腔解調方案。
  16. Dynamic demodulation method for external pressure measurement with fiber grating sensor

    用光纖光柵傳感器測量外壓力的動態調制方法
  17. Finally, in allusion to the bpsk signal commonly used in telemetry system, a practicable demodulation method suitable for software achievement is presented and simulated

    最後，針對遙測系統最常用的bpsk信號，提出一種實用的解調方案並進行了模擬，該方案非常適宜軟體方法實現。
  18. This paper put forward a demodulation method of fbg sensors based on the voltage drive fabry - perot cavity ( f - p ), on which we have a feedback control voltage to drive. a novel automatic trace method is creatively proposed

    本文提出了一種基於電壓驅動可調法布里腔自動跟蹤掃描濾波的光纖光柵傳感器解調方案，利用電壓反饋控制可調法布里腔的方法，達到對外界的振動、應變等物理量引起的布拉格光纖光柵反射光譜的漂移進行解調。
  19. 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。
  20. A new envelope demodulation method based on empirical mode decomposition ( emd ) is proposed to make up the limitation that meaningless frequencies often arise in the envelope spectrum of conventional envelope demodulation method

    摘要提出了一種新的調制信號解調分析技術，來抑制傳統的包絡解調方法中經常出現的無意義的頻率成分。
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