調制載頻衰落 的英文怎麼說

中文拼音 [diàozhìzǎibīnshuāi]
調制載頻衰落 英文
scintillation fading
  • 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...
  • : 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...
  • : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : 衰動詞(衰弱) decline; wane
  • : 落名詞[方言] (北方對蓮花落的俗稱) a kind of folk song
  • 衰落 : decline; be on the wane; go downhill; fading; decay; decaying; lapse; erode
  1. Concerning with the direct sequence ( ds ) cdma system, this thesis focuses on several issues related to orthogonal spreading sequences and amc, including correlation properties of orthogonal variable - length spreading sequences and their effects on ds cdma system performance, performance of multicarrier ( mc ) ds cdma system with generalized orthogonal ( go ) sequences, adaptive modulation with throughput maximization, performance of adaptive turbo - qam coded modulation in generalized fading channel and performance of amc in wcdma high speed downlink packet access ( hsdpa )

    針對直接序列碼分多址( dscdma )系統,本文主要研究了正交擴序列和自適應調編碼若干問題,包括正交變長擴序列的相關性及其對dscdma系統性能的影響、採用廣義正交( go )序列的多波直接序列碼分多址( mcdscdma )系統性能、吞吐量最大化自適應調、自適應turbo - qam編碼調在廣義通道中的性能,以及wcdma下行分組接入( hsdpa )中自適應調與編碼性能五個方面。
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