CVSD多徑搜索編碼算法的研究
MULTIPATH SEARCH ALGORITHM OF CVSD
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摘要: 本文提出了一種連續(xù)可變斜率增量(CVSD)調(diào)制多徑搜索編碼算法,經(jīng)過大量的計算機模擬表明,這一算法的性能比CVSD單徑搜索編碼算法的性能有大的提高,并指出多徑搜索編碼方法性能穩(wěn)定,克服了單徑搜索編碼方案中預測器與粗量化器間的相互作用導致的性能不穩(wěn)定的缺點。這為研究高效語言編碼技術(shù)提供了一條途徑。Abstract: A multipath search algorithm of CVSD is proposed. It is shown both analytically and by simulations that the proposed multipath algorithm can overcome the unstability problem of the single-path algorithm and improve greatly the performances of the single- path algorithm. The proposed algorithm provides with a new way for further developing the high-performance speech-coding technology.
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顧德鈞.電信科學,1985,1(4):47-51.[2]魏鴻駿.國外電子技術(shù),1973,(12): 1-55.[3]錢亞生,諸慶麟譯.語音與圖象的波形編碼原理及應(yīng)用.北京:人民郵電出版社,1985年,第八、九章.[4]中華人民共和國國家標準.增量調(diào)制終端設(shè)備技術(shù)要求(報批稿),國家技術(shù)監(jiān)督局發(fā)布.[5]楊俊,馮重熙,唐昆,張向東.通信學報,已錄用,將刊出.[6]楊俊,唐昆,馮重熙,張向東,鈕玲.電子學報,已錄用,將刊出. -
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