自正交分組碼 的英文怎麼說

中文拼音 [zhēngjiāofēn]
自正交分組碼 英文
self orthogonal block code
  • : Ⅰ代詞(自己) self; oneself; one s own Ⅱ副詞(自然;當然) certainly; of course; naturally; willin...
  • : 正名詞(正月) the first month of the lunar year; the first moon
  • : Ⅰ動詞1 (把事物轉移給有關方面) hand over; give up; deliver 2 (到某一時辰或季節) reach (a cert...
  • : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
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  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 )

    針對直接序列多址( dscdma )系統,本文主要研究了擴頻序列和適應調制編若干問題,包括變長擴頻序列的相關性及其對dscdma系統性能的影響、採用廣義( go )序列的多載波直接序列多址( mcdscdma )系統性能、吞吐量最大化適應調制、適應turbo - qam編調制在廣義衰落通道中的性能,以及wcdma下行接入( hsdpa )中適應調制與編性能五個方面。
  2. In next mobile communication system to suffice more and more high - speed data service and demand of qos ( quality of service ) many new wireless link layer transport technologies are going to be used such as mimo ( multiple input multiple output ), ofdm ( orthogonal frequency division multiplexing ), channel coding and acm ( adaptive coding modulation ) etc. low density parity check ( ldpc ) codes were first discovered in 1960 ’ s which belong to linear block codes with their parity matrix being sparse

    下一代移動通信系統為了滿足移動用戶對高速、寬帶數據傳輸業務不斷增長和更高服務質量的要求,採用了許多新的無線鏈路傳輸技術,包括多天線發射和接收技術、復用技術、通道糾錯編技術和適應編調制技術等。上世紀60年代提出的低密度校驗,是一種校驗矩陣為稀疏矩陣的線性
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