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,越來越受到眾多編碼研究學(xué)者的關(guān)注。
The information contains the content as follows : “ information on equipment and master control module ” , “ information on monitoring module ” , “ information on io module ” , select each tag page to see the version and the check code of each application layer in the equipment 包括“裝置及主控模件信息” 、 “監(jiān)控模件信息” 、 “ io模件信息” ,依次選擇各標(biāo)簽頁,分別顯示裝置內(nèi)部各應(yīng)用層的版本及校驗(yàn)碼。
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 very complex sequence probably won ' t be re - used in many test scripts , so it might not be worth the labor required to generalize it , document it , and insert the error - checking code into it that you would expect of a competently written library function 因?yàn)橐粋€(gè)很復(fù)雜的命令序列很可能在很多測(cè)試腳本中無法重用,所以,就不值得花力氣去生成它,為它寫文檔,并為它加入錯(cuò)誤檢查代碼以期成為編寫完善的庫函數(shù)。
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。