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Efficient Soft-Decision Maximum-Likelihood Decoding of bch Code in the GNSS

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Journal of Harbin Institute of Technology(New Series) 2015年第1期22卷 54-58页

作者： Jinhai Sun Jinhai Li Haiyang Liu Feng Wang Yuepeng Yan Institute of microelectronics Chinese Academy of Sciences

Soft-decision decoding of bch code in the global navigation satellite system( GNSS) is investigated in order to improve the performance of traditional hard-decision decoding. Using the nice structural properties of bch code,a soft-decision decoding scheme is proposed. It is theoretically shown that the proposed scheme exactly performs maximum-likelihood( ML) decoding,which means the decoding performance is optimal. Moreover,an efficient implementation method of the proposed scheme is designed based on Viterbi algorithm. Simulation results show that the performance of the proposed soft-decision ML decoding scheme is significantly improved compared with the traditional hard-decision decoding method at the expense of moderate complexity increase.

关键词： GNSS bch codes soft-decision decoding maximum-like

AN ALGEBRAIC COMPLETE DECODING FOR DOUBLE-ERROR-CORRECTING BINARY bch CODES

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Journal of Electronics(China) 1984年第1期1卷 12-17页

作者：冯贵良 Shanghai Institute of Computer Technology

An algebraic complete decoding for double-error-correcting binary bch codes of primitive lengthis *** decoding is done more quickly than the step-by-step decoding devised by *** if an error pattern corresponding with syndromes s1 and s3 has weight 3,the decoding can find allerror patterns of weight 3 corresponding with these *** the same time,a discriminant for apolynomial of degree 3 over GF（2m）has three distinct roots in GF（2m）is also *** discrimi-nant is very important for complete decoding of triple-error-correcting binary bch codes.

关键词： AN ALGEBRAIC COMPLETE DECODING FOR DOUBLE-ERROR-CORRECTING BINARY bch CODES GF over bch

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闪存控制器中bch解码器的VLSI设计

华中科技大学学报（自然科学版） 2014年第1期42卷 93-97页

作者：郑朝霞丁明鹏钟建福李继承华中科技大学光学与电子信息学院湖北武汉430074 华中科技大学电子与信息工程系湖北武汉430074

为满足闪存控制器中bch解码器对速度和面积的要求,设计了一种高速小面积bch(8528,8192,24)解码器,其关键方程电路采用简化的RiBM算法,利用二进制bch码的特性简化关键方程电路结构和迭代轮数.使用关键方程电路的可折叠特性和逻辑资源复用... 详细信息

为满足闪存控制器中bch解码器对速度和面积的要求,设计了一种高速小面积bch(8528,8192,24)解码器,其关键方程电路采用简化的RiBM算法,利用二进制bch码的特性简化关键方程电路结构和迭代轮数.使用关键方程电路的可折叠特性和逻辑资源复用,对解码器架构进行了面积优化,结果显示:与传统iBM算法相比,电路的关键路径延时减小了约50%,与RiBM算法相比,关键方程迭代轮数减少了1/2,电路资源减少了约1/3;该系统架构能够在保证吞吐率的前提下减小约70%电路面积.

关键词： bch 码闪存存储器纠错码 Berlekamp-Massey算法折叠结构 error correction codes (ECC)

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基于星载数传系统的一种bch码的译码方案

集成电路应用 2023年第1期40卷 4-7页

作者：李璜宁刘小荣上海航天电子有限公司上海201821

阐述太空中的恶劣环境影响,数据在存储传输过程中因为诸如单粒子效应而产生的错误,需要对于数据接收端接收到的可能存在错误数据进行检查以及纠错,用以保证数据结构的完整性与可靠性。在诸多检纠错码中,bch码无疑是一种较为成熟的方案,... 详细信息

阐述太空中的恶劣环境影响,数据在存储传输过程中因为诸如单粒子效应而产生的错误,需要对于数据接收端接收到的可能存在错误数据进行检查以及纠错,用以保证数据结构的完整性与可靠性。在诸多检纠错码中,bch码无疑是一种较为成熟的方案,探讨一种较为新型的bch码译码方案,完成对于给定长度的数据进行译码,从而完成检错、纠错过程。

关键词：信息通信 FPGA bch 译码

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飞鹤打造“北大+哈佛bch”科研双平台

飞鹤打造“北大+哈佛BCH”科研双平台

Performance Evaluation of OFDM Coding System Using Concatenated bch and LDPC Codes

中国食品安全报

作者：牛安春

本报讯记者牛安春近日，“专研大脑营养聪明中国宝宝”飞鹤脑发育战略发布会在北京举办。会上，中国飞鹤宣布启动脑发育战略。诺贝尔奖得主迈克尔·莱维特、中国工程院院士朱蓓薇、中国工程院院士陈卫、北京大学神经科学研究所副所... 详细信息

本报讯记者牛安春近日，“专研大脑营养聪明中国宝宝”飞鹤脑发育战略发布会在北京举办。会上，中国飞鹤宣布启动脑发育战略。诺贝尔奖得主迈克尔·莱维特、中国工程院院士朱蓓薇、中国工程院院士陈卫、北京大学神经科学研究所副所长邢国刚等海内外专家齐聚，共同探讨生命早......

关键词：生命早期波士顿脑发育早期营养中国工程院院士 bch 双平台

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International Journal of Communications, Network and System Sciences 2017年第5期10卷 67-77页

作者： H. Gagan R. Manas N. G. Girish Kumar Department of Electronics and Communication Bangalore Institute of Technology Bengaluru India Bangalore Institute of Technology Bengaluru India

This paper establishes a resilient concatenated coding platform for Orthogonal Frequency Division Multiplexing (OFDM) with Quadrature Amplitude Modulation (QAM) over Additive White Gaussian Noise (AWGN) channel. At the Forward Error Correction (FEC) coding unit, our proposed concatenated coding scheme utilizes standard type of bch as external coding and LDPC as inner coding. In this scheme, Interleaver inclusion is seen as a catalyst to enhance the systems performance.

关键词： Concatenated Codes OFDM LDPC bch Interleaver

Statistical Recognition Method of Binary bch Code

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Communications and Network 2011年第1期3卷 17-22页

作者： Jiafeng Wang Yang Yue Jun Yao 不详

In this paper, a statistical recognition method of the binary bch code is proposed. The method is applied to both primitive and non-primitive binary bch code. The block length is first recognized based on the cyclic feature under the condition of the frame length known. And then candidate polynomials are achieved which meet the restrictions. Among the candidate polynomials, the most optimal polynomial is selected based on the minimum rule of the weights sum of the syndromes. Finally, the best polynomial was factorized to get the generator polynomial recognized. Simulation results show that the method has strong capability of anti-random bit error. Besides, the algorithm proposed is very simple, so it is very practical for hardware im-plementation.

关键词： Binary bch Code Blind Recognition Code Length Generator Polynomial

ON THE DIMENSION AND MINIMUM DISTANCE OF bch CODES OVER GF(q)

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Journal of Electronics(China) 1996年第3期13卷 216-221页

作者： Yue Dianwu Hu Zhengming(Dept. of Information Engineering, Beijing University of Posts & Telecommunications, Beijing 300088)

In this paper, only narrow-sense primitive bch codes over GF(q) are considered. A formula, that can be used in many cases, is first presented for computing the dimension of bch codes. It improves the result given by MacWilliams and Sloane in 1977. A new method for finding the dimension of all types of bch codes is proposed. In second part, it is proved that the bch bound is the leader of some cyclotomic coset, and we guess that the minimum distance for any bch code is also the leader of some cyclotomic coset.

关键词： bch code Cyclotomic coset Dimension Minimum distance

Study on bch based Encoder and Decoder Approach for EM-MWD Communication System

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Study on BCH based Encoder and Decoder Approach for EM-MWD C...