shannon code 中文意思是什麼

shannon code 解釋
香農碼
  • shannon : 莎儂
  • code : n 1 法典；法規。2 規則，準則；（社會、階級等的）慣例，習俗，制度。3 （電）碼，代碼，密碼，暗碼；...
  1. This paper discusses the results in ricean channel in addition. the analysis of rayleigh and ricean channel are based on two cases, state information ( si ), and no state information ( nsi ). while the code rate approaching to zero, the shannon limit of bsc channel model is 0. 37db, the result of awgn ’ s is - 1. 59db, of rayleigh si is - 2. 31db, of rayleigh nsi is - 1. 45db, of riceansi is - 2. 31db, and of ricean nsi is - 1. 44db

    當碼率趨近於0時bsc通道下的香農限為0 . 37db ， awgn通道下的香農限為- 1 . 59db ，瑞利通道下通道增益已知時的香農限為- 2 . 31db 、通道未知時的香農限為- 1 . 45db ，萊斯通道下通道增益已知時的香農限為- 2 . 31db ，通道增益未知時香農限為- 1 . 44db 。
  2. In the last half century, researchers have always been searching good code with rate closing to the shannon theory limitation, error ratio being low and it being to be decoded easily

    半個世紀以來，人們一直在尋找碼率接近香農理論極限、誤差概率小和譯碼復雜性低的好碼（又稱漸近好碼或shannon碼） 。
  3. Turbo code was introduced by c. berrou in 1993. turbo code can achieve the error correcting capacity close to the shannon - limit with reasonable decoding complexity, provided that the code words are long enough

    1993年， c . berrou提出了一種新的通道編碼方案? ? turbo碼， turbo碼能夠在編碼長度較長的情況下得到接近香農極限的糾錯性能。
  4. Channel coding is one of the important part of communication system, whose theoretic base is the shannon ' s law of channel code set up by shannon who inaugurated the information theory in 1948

    通道編碼是通信系統中的重要組成部分之一，其理論基礎是1948年信息論的開創者香農提出的通道編碼定理。
  5. Turbo code, which utilizes the condition of random coding and decoding of shannon noisy channel coding theorem, has obtained the performance near to shannon theoretic limit. the performance of turbo code is the best one in all presented coding methods

    Turbo碼由於很好地應用了shannon有噪通道編碼定理中的隨機性編譯碼條件而獲得了接近shannon理論極限的譯碼性能。
  6. Construction of low - density parity - check code approaching the shannon limit

    構造接近香農極限的低密度校驗碼
  7. Ldpc code were rediscovered and shown to form a class of shannon - limit - approaching codes in the late 1990s

    1990s末被重新認知為一類具有接近香農限特性的好碼。
  8. Low density parity check ( ldpc ) code, which is a special case of error correction code with sparse parity - check matrix, has the performance very close to the shannon limit

    Ldpc碼是一種特殊的具有稀疏校驗矩陣的糾錯編碼，其性能逼近香農限。這種碼具有實現復雜度低和數據吞吐量高的優點。
  9. Turbo codes were presented by c. berrou in international conference on communications in 1993. they hang convolutional code and random interleaver together to realize the idea of random coding, and adopt soft input / soft output ( siso ) iterated decoding to approach maximum likelihood decoding ( mld ). turbo codes come closer to approaching shannon ' s limit

    Turbo碼，由c . berrou等在icc 』 93會議上提出，它巧妙地將卷積碼和隨機交織器結合在一起，實現了隨機編碼的思想，同時，採用軟輸入軟輸出迭代譯碼來逼近最大似然譯碼，具有近shannon限的性能。
  10. Such code is also called gradually good code or shannon code. in 1993, c. berro etc. firstly proposed a new channel code method - turbo code, which employed recursive systematic code 、 the random interleaver 、 map ( maximum a posteriori ) algorithm and iterative decoding algorithm obtained the capacity that had only 0. 7db difference compared to the shannon limitation

    1993年c . berro等首先提出了一種全新的通道編碼方式? turbo碼，採用遞歸系統碼與隨機交織器構造turbo碼，並將map （ maximumaposteriori ）演算法和迭代演算法應用於解碼過程，獲得了與香農理論極限僅差0 . 7db的性能。
  11. 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

    基於圖模型的ldpc碼是一種有較低的迭代譯碼復雜度和接近shannon容量限的漸近好碼。
  12. The channel capacity of awgn channel and rayleigh fading channel with binary input and continuous output are derived and the shannon capacity limits for different code rate are provided. 2

    對二元輸入、連續輸出的awgn通道和rayleigh衰落通道的通道容量進行了推導，給出了不同碼率下的shannon容量限。
  13. Turbo code is regarded as the milestone in channel encoding theory history for its performance closing to shannon limit, which makes us covert to decrease the numbers of light weight code ( error coefficient ) from increasing the minimum hanming weigh. the research and analysis are concentrated on the following : 1

    Turbo碼具有近shannon限的性能，它的出現被看作是通道編碼理論發展史上的一個里程碑，它使人們設計通道編碼的方法從增加碼的最小漢明距離轉向了減少低重量碼字的個數（錯誤系數） 。
  14. Low density parity check ( ldpc ) codes are shown to be one class of shannon limit approaching codes. with advantages of high encoding gain, low decoding complexity and flexible code rates, etc., the research of these codes has become a hot spot of coding academia

    低密度校驗碼（ ldpc ）性能接近香農限，具有編碼增益高、譯碼簡單快捷、碼率靈活等優點，是當前編碼界的研究熱點。
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