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    • 3. 发明授权
    • 비이진부호에서의 SCR/SDR을 이용한 반복 복호 장치및 그 동작 방법
    • 用于非二进制代码的装置用SCR或SDR进行迭代解码及其操作方法
    • KR100776910B1
    • 2007-11-15
    • KR1020060087404
    • 2006-09-11
    • 포항공과대학교 산학협력단
    • 전경훈사공민
    • H03M13/37
    • H03M13/2975H03M13/2969H03M13/3753H03M13/3983H04L1/0051
    • An iterative decoding device using SCR/SDR(Sign Change Ratio/Sign Difference Ratio) in a non-binary code and an operation method thereof are provided to regulate the number of iterative decoding times by utilizing SCR or SDR for extrinsic information for each symbol, extrinsic information of bits, and an approximate value of bit extrinsic information. In an iterative decoding device using SCR/SDR in a non-binary code, an iterative decoding execution unit(100) iteratively decodes the non-binary code received from a transmitter, by a unit of 2^n-ary n-tuple binary symbol by using extrinsic information generated from a first decoder(101), for a second decoder(102), and inputting soft output generated from the second decoder, to the first decoder again. An SCR/SDR calculating unit(110) calculates SCR/SDR indicating the change ratio of the code by using extrinsic information related to the 2^n-ary n-tuple binary symbol. An iterative decoding stop unit(120) stops an iterative decoding operation and finishes decoding if the computed SCR/SDR is over each critical value.
    • 提供了使用非二进制码中的SCR / SDR(符号变化率/符号差分比)的迭代解码装置及其操作方法,以通过利用SCR或SDR为每个符号的外在信息来调节迭代解码次数, 比特的外部信息,以及比特外在信息的近似值。 在使用非二进制码中的SCR / SDR的迭代解码装置中,迭代解码执行单元(100)通过2 ^ n元n元组二进制符号的单位对从发送器接收的非二进制码进行迭代解码 通过使用从第一解码器(101)生成的外部信息,对于第二解码器(102),并且将从第二解码器产生的软输出再次输入到第一解码器。 SCR / SDR计算单元(110)通过使用与二进制n元组二进制符号相关的外在信息来计算指示代码的变化率的SCR / SDR。 迭代解码停止单元(120)停止迭代解码操作,并且如果所计算的SCR / SDR超过每个临界值,则完成解码。
    • 4. 发明公开
    • 가변 이득계수를 이용한 저복잡도 및 저전력 터보 복호기
    • 使用可变尺度因子的低复杂度和功耗 - 涡旋解码器
    • KR1020070108443A
    • 2007-11-12
    • KR1020070005925
    • 2007-01-19
    • 한국전자통신연구원
    • 김병조현석봉박성수김재범박현철서종현
    • H03M13/37
    • H03M13/2975H03M13/3753H04L1/0051H04L1/0053
    • A low-complexity and low-power consumption turbo decoder using a variable scaling factor is provided to decrease the power consumption rate by reducing the average number of iterative decoding times. A low-complexity and low-power consumption turbo decoder using a variable scaling factor includes first and second component decoders(210,230) for iteratively decoding bits encoded by a turbo code according to the variable scaling factor; an initial stop judging unit(250) for checking an SDR(Sign Difference Ratio) value and variably restricting the number of iterative decoding times according to the SDR value; and a variable scaling factor calculating unit(260) for calculating the variable scaling factor in each decoding convergent region according to the SDR value.
    • 提供了使用可变缩放因子的低复杂度和低功耗turbo解码器,以通过减少迭代解码时间的平均数来降低功耗率。 使用可变缩放因子的低复杂度和低功耗turbo解码器包括用于根据可变缩放因子迭代地解码由turbo码编码的比特的第一和第二分量解码器(210,230) 初始停止判断单元,用于根据SDR值检测SDR(符号差分比)值并可变地限制迭代解码次数; 以及可变比例因子计算单元,用于根据SDR值计算每个解码收敛区域中的可变缩放因子。
    • 8. 发明公开
    • 고성능 연접 BCH 기반 순방향 오류 정정 시스템 및 방법
    • 高性能基于BCH的前向纠错系统和方法
    • KR1020120101808A
    • 2012-09-17
    • KR1020110019845
    • 2011-03-07
    • 인하대학교 산학협력단
    • 이한호이기훈
    • H03M13/15H03M13/27H04L1/00
    • H03M13/152H03M13/27H03M13/3753H03M13/6508H04L1/005H04L1/0056
    • PURPOSE: A forward error correction system based on high-performance concatenated BCH(Bose-Chaudhuri-Hocquenghen) and a correction method thereof are provided to compensate for errors generated in a channel by using forward error correction using a concatenated BCH code. CONSTITUTION: Initial source data is encoded in a BCH outer encoder(310) of 8 channels. A parity generated is saved in a designated location of each OTU4 frame. Encoded data is interleaved in an interleaver(350). The interleaved data is re-encoded in a BCH inner encoder(320) of 32 channels. Concatenated encoded codes are transmitted along a transmission path(380). A reception terminal decodes in an exact reverse order. Corrected source data is obtained from the output of the BCH outer decoder(340). [Reference numerals] (310, 340) BCH(3920,3824,8) outer encoder; (320, 330) BCH(996,956,4) inner encoder; (350, 370) Interleaver; (360) De-interleaver; (380) Transmission path; (AA) Source data; (BB) Corrected reception data
    • 目的:提供基于高性能级联BCH(Bose-Chaudhuri-Hocquenghen)的前向纠错系统及其校正方法,以通过使用级联的BCH码使用前向纠错来补偿信道中产生的错误。 构成:初始源数据在8通道的BCH外编码器(310)中编码。 产生的奇偶校验被保存在每个OTU4帧的指定位置。 编码数据在交织器(350)中交错。 交织的数据被重新编码在32个信道的BCH内部编码器(320)中。 沿着传输路径(380)发送连续编码的代码。 接收终端以恰好相反的顺序进行解码。 校正的源数据从BCH外部解码器(340)的输出获得。 (310,340)BCH(3920,3824,8)外编码器; (320,330)BCH(996,956,4)内编码器; (350,370)交织器; (360)去交织器; (380)传输路径; (AA)来源资料; (BB)修正的接收数据
    • 9. 发明公开
    • 정진폭 다중화된 직접확산 통신 시스템에서 정진폭 복호화 장치 및 방법
    • 恒定幅度解码装置和多路径直接序列扩展通信系统的方法
    • KR1020120008437A
    • 2012-01-30
    • KR1020110048468
    • 2011-05-23
    • 한국전자통신연구원
    • 박태준주성순채종석김세한표철식
    • H03M13/37
    • H03M13/2975H03M13/3753H03M13/6502H04L1/0053
    • PURPOSE: A constant amplitude decoding apparatus and method are provided to determine whether vertical direction decoding and horizontal direction decoding are repeatedly executed or not by restoring a constant amplitude multiplexed signal to a two dimension signal. CONSTITUTION: Inverse diffusion and inverse multiplexing module(110) receive data row of constant amplitude. The inverse diffusion and diverse multiplexing module inversely diffuses and multiply the data row of constant amplitude and restores to a two dimension signal. A decoding module(120) executes vertical direction decoding about the two dimension signal. A control module(130) determines whether the vertical direction decoding and horizontal direction decoding are repeatedly executed or not. A bit row information output module outputs a result which is decoded by the decoding module to a bit row.
    • 目的:提供恒定幅度解码装置和方法,通过将恒定幅度复用信号恢复为二维信号来确定是否重复执行垂直方向解码和水平方向解码。 构成:逆扩散和反向多路复用模块(110)接收恒定幅度的数据行。 逆扩散和多路复用模块将恒定幅度和恢复的数据行反扩散并乘以二维信号。 解码模块(120)执行关于二维信号的垂直方向解码。 控制模块(130)确定是否重复执行垂直方向解码和水平方向解码。 位行信息输出模块将由解码模块解码的结果输出到位行。