parity-check code造句
例句與造句
- Low density parity - check codes and its application foreground
低密度奇偶校驗(yàn)碼及其應(yīng)用前景 - Computation of the minimum distance of low - density parity - check codes
碼的最小漢明距離估算 - Construction of low - density parity - check code approaching the shannon limit
構(gòu)造接近香農(nóng)極限的低密度校驗(yàn)碼 - Design of rate - compatible low - density parity - check codes for type - hybrid arq systems
系統(tǒng)速率可變低密度校驗(yàn)碼的設(shè)計(jì)與研究 - The decoding ideas of low - density parity - check codes on graphs are systematically summarized
系統(tǒng)地闡述了ldpc碼基于圖模型的譯碼思想。 - It's difficult to find parity-check code in a sentence. 用parity-check code造句挺難的
- 4 di c , proietti d , telatar i e et al . finite - length analysis of low - density parity - check codes on the binary erasure channel . ieee trans
如果停止距離較小， ldpc碼在迭代譯碼下的錯(cuò)誤概率曲線經(jīng)常會(huì)出現(xiàn)所謂的"地板效應(yīng)error floor 。 - Low - density parity - check code ( ldpc codes ) is a kind of asymptotic good codes that can approach shannon ' s capacity with low complexity iterative decoding
基于圖模型的ldpc碼是一種有較低的迭代譯碼復(fù)雜度和接近shannon容量限的漸近好碼。 - Theory , 2002 , 48 : 1570 - 1579 . 5 kou y , lin s , fossorier m p c . low - density parity - check codes based on finite geometries : a rediscovery and new results . ieee trans
Schwartz和vardy在2005年得到以下結(jié)果：任給校驗(yàn)矩陣h0 ，一定可以通過(guò)增加冗余行得到新的校驗(yàn)矩陣h使得停止距離s h達(dá)到上界d 。 - The linear block code is called a binary low - density parity - check code if it is based on a sparse parity - check matrix . this sort of code was originally proposed by dr . gallager in 1962 , which cannot attract a large amount of interest at that time
低密度奇偶校驗(yàn)( ldpc )碼是基于稀疏校驗(yàn)矩陣的線性分組碼,它最初由gallager于1962年提出,當(dāng)時(shí)并未受到人們的重視。 - Low - density parity - check codes come to be one of the best coding technologies because of their low - complicity iterative decoding algorithm and capacity approaching performance , and they attract more and more researchers " eyes in recent years
低密度校驗(yàn)碼以其低復(fù)雜度的迭代譯碼算法和可逼近信道容量限而成為目前最佳的編碼技術(shù)之一，越來(lái)越受到眾多編碼研究學(xué)者的關(guān)注。 - Channel coding is based on more recent developments by the scientific community : low - density parity - check codes are adopted . low - density parity - check codes were first introduced by gallager in 1960 . but due to the calculating effort in implementing , they were mostly ignored
其性能如此優(yōu)異的一個(gè)重要原因是采用了當(dāng)今糾錯(cuò)編碼技術(shù)發(fā)展的最新成果? ?低密度校驗(yàn)( ldpc , low - densityparity - check )碼。 - A serially concatenated iterative scheme ( bpcm - id ) combining low - density parity - check codes ( ldpc ) with multilevel modulation is proposed . differ from other serially concatenated iterative decoding schemes , the whole iterative process of bpcm - id is divided into outer iteration and inner iteration to avoid too much errors feedback to the demapper which may cause severe degradation of decoding performance
論文提出了一種新的多級(jí)ldpc碼的概念、基本特性、構(gòu)造準(zhǔn)則和搜索算法,給出一種融合mlc / bicm的聯(lián)合編碼調(diào)制系統(tǒng)框架,與傳統(tǒng)mlc系統(tǒng)區(qū)別在于用一個(gè)多級(jí)ldpc碼取代多個(gè)分量碼。 - In detail , they are bit - interleaved coded modulation ( with iterative decoding ) , low - density parity - check codes and stf technology . by the performance analysis of bicm ( - id ) , which can make code and modulation optimal separately , and achieve maximum possible coding diversity as well as modulation gain , guidelines for its design and an easy algorithm for siso are proposed . design of capacity - approaching of ldpc codes and efficient encoding of them as well as several kinds of its decoding algorithms are investigated
具體的講，就是討論了基于比特交織的編碼調(diào)制技術(shù)，并給出了映射方式的設(shè)計(jì)準(zhǔn)則以及核心模塊siso的一種簡(jiǎn)單的f - map算法；研究了編碼最小漢明距隨碼長(zhǎng)線性增加的ldpc碼的幾個(gè)方面的問(wèn)題，包括接近香農(nóng)限碼子集的度分布對(duì)的設(shè)計(jì)、有效編碼器的實(shí)現(xiàn)和各種譯碼算法的優(yōu)缺點(diǎn)，并對(duì)基于ldpc碼的bicm應(yīng)用于ofdm傳輸系統(tǒng)中的性能進(jìn)行了仿真。 - The coding and decoding ideas of low - density parity - check codes on graphs are systematically summarized , and the density evolution theory is introduced . the two leading factors on the performance of ldpc codes , i . e . the degree distribution sequences and the girths of these codes , are analyzed in detail ; 2
系統(tǒng)地闡述了低密度校驗(yàn)碼基于圖模型的編譯碼思想，介紹了密度進(jìn)化理論，對(duì)影響低密度校驗(yàn)碼糾錯(cuò)性能的兩個(gè)主要因素? ?度序列設(shè)計(jì)和圍長(zhǎng)設(shè)計(jì)進(jìn)行了深入分析； 2