級聯碼 的英文怎麼說

中文拼音 [jíliánmǎ]
級聯碼 英文
concatenated code
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 聯 : Ⅰ動詞（聯結; 聯合） unite; join Ⅱ名詞（對聯） antithetical couplet
  • 碼 : Ⅰ名詞（表示數目的符號或用具） a sign or object indicating number; code Ⅱ量詞1 （指一件事或一類的...
  1. Therefore, during system design, cascade coding combining reed - solomon codes and convolutional codes is utilized ; in addition, time - direction and frequency - direction interleaves are added to alleviate channel fading

    因此在進行系統設計時，採用了rs碼與卷積碼的級聯編碼方案，並同時加入時間交織和頻率交織來對抗通道衰落。
  2. A sub - optimum decoding algorithm for system concatenated with turbo - tcm and space time block codes

    與時空分組碼的級聯系統的次優譯碼演算法
  3. An improved sova - based decoding scheme for turbo - stcm

    的并行級聯空時格碼的譯碼演算法
  4. In this paper, we consider the concatenation of bose - chaudury - hocquenheim ( bch ) and repetition codes and present soft - decision decoding schemes based on a map ( maximum a posterior probability ) criterion

    在本文中，我們考慮了bch碼和重復碼的級聯編碼，並且基於最大后驗概率準則，提出了一種軟判決解碼方法。
  5. 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。
  6. Turbo code, also named parallel concatenated convolution code, was presented by c. berrou, a. glavieux and p. thifimajshiwa in icc ' 93

    Turbo碼，又稱并行級聯卷積碼（ pccc ） ，是由c . berrou等在1993年icc會議上提出的。
  7. Is - 95, a wireless digital cellular standard based on cdma ( code division multiple access ), adopts convolution code as its channel coding part. the third generation wireless cellular standard adopts turbo coding, which stems from convolution coding, as its channel coding part

    以cdma （ codedivisionmultiplexaccess ）為基礎的數字蜂窩標準is - 95採用卷積碼作為其糾錯方案;第三代數字蜂窩無線通信標準也採用并行級聯卷積碼（ turbo碼）作為其糾錯方案。
  8. In order to make up this gap, this paper presents a differential detection scheme that serial concatenate a ldpc code to form a iterative detection cycle. moreover, under different channel conditions, simulations show that this scheme can improve the differential system performance considerably, of which may be meritorious to the applications

    所以針對這種情況，本文在第四章提出了一種級聯ldpc碼的turbo差分檢測方案，並通過模擬說明，在級聯不同碼率的ldpc碼下，該方案都可以使差分系統獲得明顯的性能增益，具有一定的應用價值。
  9. We discuss the bit error rate of the convolutional code, turbo code encoder and decoder theory as well as the performance in awgn channel and rician channel, and present the result of simulation

    討論了rs與卷積碼級聯的誤碼率問題， turbo碼的編譯碼原理及其在awgn通道和rician通道中的性能，並給出了相應的模擬結果。
  10. Cascaded low - density erasure codes are based on sparse random bipartite graphs. very efficient linear time encoding and erasure recover algorithms with the arbitrarily near erasure channel capacity performance of the codes with respect to the algorithms have made them one of the most optimal coding techniques up to now

    基於稀疏隨機二部圖的級聯型低密度糾刪碼因其線性時間的編譯碼演算法和可任意逼近刪除通道容量限而成為目前最佳編碼技術之一。
  11. The principles of erasure codes used under binary erasure channels are summarized and erasure codes which belong to standard classes of rs codes are introduced with emphasis on cascaded low - density erasure codes with linear time encoding and erasure recover algorithms. thresholds of regular degree distributions are analyzed. it is shown that low - density erasure codes based on ( d, 2d ) - regular sequences of degree distribution are not close to optimal ( d 3 ). two pares of irregular degree distribution sequences are introduced and a pare of improved right regular sequences of low - density erasure codes are presented, it is testified that the new sequences are asymptotically quasi - optimal. in the meantime, simulations of cascaded low - density erasure codes based on a few types of special sequences of degree distribution available are given, together with performance analyses on these codes

    闡述了應用於刪除通道下的糾刪碼基本原理，介紹了兩類標準的rs碼類糾刪碼，重點分析了具有線性時間編碼和恢復演算法的漸近好碼?級聯型低密度糾刪碼，分析了正則度分佈的閾值，對正則低密度校驗碼在刪除通道下的糾錯性能進行了模擬，從理論上證明了基於（ d ， 2d ） -正則度序列的低密度糾刪碼都不是漸近最優碼（ d 3 ） ，同時還分析了非正則低密度校驗碼的度序列設計，基於右邊正則序列提出了一種改進型右邊正則序列，證明了此序列為漸近擬最優的，對基於幾類現有典型度分佈序列的級聯型低密度糾刪碼進行了模擬模擬及性能分析； 3
  12. If a retransmission is needed, additional redundant bits for error correcting are sent. concatenation of an inner code and an outer code may provide a high coding gain and the capacity of a long code to correct errors

    級聯碼是將兩個或多個單碼級聯，在不增加譯碼復雜度的情況下，可以得到高的編碼增益，達到與長碼相同的糾錯能力。
  13. 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。
  14. Analysis of schemes on turbo - rs concatenated codes

    級聯碼編譯碼方法分析
  15. Downconvertion and error control system based on concatenated code are the critical part of the leo spread spectrum communication system, and are widely used in the communication system

    下變頻和基於級聯碼的差錯控制系統是該特種小衛星擴頻通信系統的關鍵部分，並且在通信系統中有著廣泛地應用。
  16. Furthermore, this paper analyzes the error control system based on concatenated code, mainly including the formation, encoding, decoding of rs code and convolutional code, interleaving, and deinterleaving

    本文同時也就基於級聯碼的差錯控制系統設計作了分析，主要包括rs碼和卷積碼的構成、編碼、譯碼、交織和去交織。
  17. With the developments of the concatenated codes and turbo codes reviewed, the serially concatenated convolutional codes that are the serial counterpart of the turbo codes are introduced firstly in this paper

    本文在對級聯碼發展歷史和turbo碼簡要介紹的基礎上，著重研究了串列級聯卷積碼（ sccc ）和串列級聯網格編碼調制（ sctcm ）的編譯碼方法、糾錯性能和設計原則。
  18. Turbo codes, which was proposed by french berrou in icc ' 93, is a parallel concatenation code by use of iterative decoding

    Turbo碼，是法國人berrou等在1993年icc上提出的一種採用重復迭代譯碼的并行級聯碼。
  19. The simulation result shows that : the performance of the proposed scheme is improved with comparison to pccc and sccc on both awgn channel and the rayleigh fading channel. in awgn channel, it is about same if the snr is low, if the snr is high, the improvement is 0. 2 ~ 0. 5db

    結果表明：本方案的誤碼率性能與并行級聯碼和串性行級聯碼相比，在高斯白噪聲通道上，低信噪比時幾乎相同，高信噪比時有0 . 2 0 . 5db的改善。
  20. The principle of coding and decoding for turbo codes, including pccc, sccc and hccc, are discussed ; based on the introduction of the modified and simplified map algorithms on awgn channel for turbo codes, multiplicative and additive siso decoding algorithms adapted to general iterative decoding are derived

    論述了turbo碼（包括pccc 、 sccc和hccc ）的編譯碼原理，在介紹awgn通道上用於turbo譯碼的修正map譯碼演算法基礎上系統推導了適用於級聯碼迭代譯碼的通用siso譯碼演算法。
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