block correction 中文意思是什麼
block correction
解釋
更正貼圖- block : n 1 片，塊，大塊；粗料，毛料；木料；石料；金屬塊；【建築】塊料，砌塊；【地質學；地理學】地塊。2 ...
- correction : n 修正，改正；校正；矯正；〈古語〉懲罰；勘誤表，補正。 a copy disfigured by numerous corrections ...
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Turbo codes represent the new code structures, which consist of pccc ( parallel serially convolutional code ) and sccc ( serially concatenated convolutional code ). in this paper, the background of turbo codes are firstly introduced, which includes the base principle of error correction code 、 block code and convolutional code ; the principle of turbo code and the iterative decoding is secondly expanded ; the key decoding algorithm : a revised map algorithm and iterative decoding theory are detailed ; then, a new turbo code structure : hccc ( hybrid concatenated convolutional code ) is presented, and the capacity of this code method is analyzed, the average capacity upper bound is derived ; at last, this code is simulated on awgn ( additive white gaussian noise ) channel and rayleigh fading channel
本文首先介紹了turbo碼的背景知識，包括差錯控制的基本原理、分組碼和卷積碼；然後闡述了turbo碼的基本原理，包括turbo編譯碼器結構及迭代譯碼原理；較為詳細地描述了關鍵的譯碼演算法： ?種改進的最大后驗概率（ map ）譯碼演算法及迭代譯碼演算法；提出了一種新的turbo碼結構：混合turbo碼（混合級聯卷積碼） ；並用編碼性能聯合界分析方法對混合turbo碼進行了性能分析，得出了其平均性能上界；並在高斯白噪聲通道和瑞利衰落通道上分別作了一些應用研究及計算機模擬實驗。 -
In the proposed scheme, the outer code comprising several block codes for error detection in parallel, and the inner code employing a recursive systematic convolutional ( rsc ) code for error correction, are linked by an interleaver
本文所討論的體制中，串列級連碼的外碼由多個分組檢錯子碼構成，內碼是一個系統遞歸卷積碼。 -
Some results on the undetected error probability of linear codes for pure error - detection are, at present, generalized for both error detection and correction. an analytic formula is obtained to calculate the undetected error probability of linear block codes for simultaneous error detection and correction
在只檢錯時，證明了糾正兩個錯誤擴展bch碼是最佳檢錯碼； m大於4的非線性等重碼（ 2m ， 2 ， m ）不是最佳碼。 -
But for the same reason, it have n ' t the same diversity feature as space - time block code, as well as it have n ' t the same error correction capability as convolutional code or trellis code modulation
由於空時格碼兼顧了分集和通道編碼，導致其分集特性不如空時分組碼，糾錯能力不如卷積碼和格形編碼調制。 -
Estimating performance of block codes for both error detection and correction using importance sampling
線性擬等重碼的檢錯性能
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