concatenated coding 中文意思是什麼
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Both quantum error correcting code and quantum error avoiding code are practical quantum channel coding schemes. we present in this dissertation a new quantum error correcting code scheme, named serially concatenated quantum convolutional code
克服量子通道噪聲的編碼就稱為量子通道編碼，實用的量子通道編碼包括量子糾錯碼和量子避錯碼。 -
We first design the construction modules of serially concatenated quantum convolutional code. and then design the corresponding code - coding gate - array. in quantum error avoiding code, we first unified the definitions of decoherence - free subspace, and then proved that all these definitions are equivalent
在量子避錯碼方面，統一了各種無消相干子空間的定義，證明了各種定義之間的等價性，同時提出一種利用群論方法構造無消相干子空間的簡單方案。 -
As the step of the color tv ( the second generation ) to the digital tv ( the third generation ) is larger and larger, the research of digital television terrestrial broadcasting ( dttb ) become more and more important in china, we are concentrating on the standard of dttb which is suit for our country after describing and analyzing the technical stipulation and speciality of dttb, this paper compares atsc 8 - vsb with dvb - t cofdm and isdb - t bst - ofdmo the emphasis of this article lies in the technical solution about transferring system, channel coding is important component of dttb, which can resist from the bad circumstances o because of lots of varieties and different performance, channel coding become one of the emphasis of the research work this paper analyzes and researches the theory and performance of the different channel coding particularly, points out an effective theoretic analysis method and computer demo of performance comparison a theoretical method for estimating the performance of concatenated codes is proposed in this paperc this is achieved by combining the performance of single level coding rayleigh fading channel and the character of channel modulation it may be useful to research and development of the future digital television terrestrial broadcasting standard of our country
通道糾錯編碼是數字電視地面廣播傳輸系統的重要組成部分，是抵禦地面惡劣環境的有效手段。由於通道編碼的種類繁多，性能各異，因此是目前研究工作的重點之一。本文詳細分析和研究了幾種通道糾錯編碼的原理和性能，並針對外碼內碼級聯糾錯結合地面通道瑞利衰落提出了一種有效的理論分析方法和性能的計算機比較演示方案，總結了不同級聯方案的性能特點，對於我國目前的數字電視地面廣播標準的研究和通道級聯糾錯方案的確立及其參數選擇具有一定的參考價值。 -
A scheme of inner concatenated coding based on the characteristics of space - time block codes and diagonally - layered space - time codes is presented
本文基於空時分組碼和對角分層空時碼的各自特點提出了一種內接編碼方案。 -
Conventionally, dtv systems adopt coding schemes such as rs or convolutional codes, or concatenated codes, where the error correction performance is still quite far away from the shannon limit
通常的，數字電視系統採用的通道編碼方案為rs碼或卷積碼，或二者的級聯碼，它的糾錯性能與香農極限相比，仍有一定的距離。 -
The performance bounds and design criteria for hccc are developed. the result for hccc is extended to generalized concatenated coding. encoder, decoder structure and design criteria of generalized concatenated coding are studied
將結果推廣到廣義的級聯卷積編碼中，分析了廣義級聯卷積編碼的編碼結構、譯碼演算法和設計準則。
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