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- Recently , much interest of the coding community has focused around a new family of error - correcting codes , called turbo codes , whose perfor - mances in terms of bit error rate ( ber ) are close to the shannon limit
Turbo碼作為一種新型的糾錯編碼類型備受通信界的注目，它的糾錯能力能夠接近shannon極限。 turbo碼自1993年由c - This system can alarm by telephone or speaker , it also can alarm through telephone and speaker one by one . the user can be able to stop alarming through the correct code inputed by the keyboard
該系統(tǒng)可由用戶通過鍵盤預先設置語音、揚聲器、先語音后揚聲器三種方式報警，而任意一種報警過程均可以由用戶通過鍵盤輸入密碼加以終止。 - Both quantum error correcting code and quantum error avoiding code are practical quantum channel coding schemes . we present in this dissertation a new quantum error correcting code scheme , named serially concatenated quantum convolutional code
克服量子信道噪聲的編碼就稱為量子信道編碼，實用的量子信道編碼包括量子糾錯碼和量子避錯碼。 - This problem arises from the circuit layout of vlsi designs , interconnection networks , sparse matrix computations , error - correcting code designs , data structures , biology , etc , which has extensive backgrounds
圖的嵌入問題是從稀疏矩陣的計算、數(shù)據(jù)結構、 vlsi電子線路設計和分子生物學等問題中提取出來的數(shù)學模型，有著廣泛的應用背景。 - In the second part , we discuss the problem encountered while transferring dsss signal in fh system , and finally a " fh + long error - correcting code " communication solution based on bpsk modulation is presented
在第二部分中，我們討論了將直擴應用于跳頻系統(tǒng)所出現(xiàn)的問題，提出了具有良好抗干擾能力的bpsk調制的“跳頻+長糾錯碼”通信的方案。 - Therefore , software radio has greatly mobility and opening . being of these characterics , it has become one of the focuses of communication research at present . in this paper , error - correcting codes of software radio is discussed
本文將對軟件無線電的糾錯碼部分加以敘述，提出了在vhf uhf軟件無線電接收發(fā)送樣機中的糾錯碼方案及其具體的實現(xiàn)方法。 - Meanwhile , a looking - up database method used for yielding pdf47 error correcting codes has been developed , which makes it easier and more accurate to compute the coefficients of the generating polynomial and results of syndrome polynomials
同時提出一種適用于pdf417糾錯編碼和譯碼的查表方法，可以簡單確定任意碼字在gf ( 929 )內所對應的本原元的冪次。 - Based on the interlace and concatenation , a new class of error - correcting codes over two - dimension , rs - complex rotary codes , is proposed . rs codes with a great error - correcting ability is the main structure of the new codes
本文在這兩種思想的基礎上，選擇了糾錯能力較強的rs碼和校驗元數(shù)目可調的復轉碼，設計構造了一種新型的二維糾錯碼? ? rs -復轉碼。
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