pulse code demodulation 中文意思是什麼
pulse code demodulation
解釋
脈碼解調- 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；...
- demodulation : n. 【無線電】解調，反調制；檢波。
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The code synchronization pulse brought from code synchrolock has the synchronization benchmark heart function in the demodulation processing. at the same time, it is the base of frame demodulation and datum processing
位同步器產生的位同步信號起著遙測解調處理「同步基準」的關鍵作用，是后續幀格式解調和數據處理的基礎。 -
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。
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