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以光存储应用为背景 ,针对盘片记录信息固有的高原生误码率问题 ,从目前CD ,DVD的纠错编码方案出发 ,设计并实现一种合适的差错控制方法来保证数据读写的正确性。分析了实现Reed Solomon(RS)纠错编码的Berlekamp Massey(BM )算法和Peterson Gorentstein -Zierler(PGZ)算法的原理和各自的实现途径 ,比较了这两种算法的优缺点 ,得出了它们的不同应用条件。采用高速硬件描述语言 (VHDL)成功实现了PGZ算法 ,并得到了理想的仿真结果。
With the background of optical storage application, aiming at the inherent problem of high bit error rate of disc recording information, this paper designs and implements an appropriate error control method based on the current CD and DVD error correction coding scheme to ensure the correct data reading and writing Sex. The principles of Berlekamp Massey (BM) algorithm and Peterson Gorentstein-Zierler (PGZ) algorithm for implementing Reed Solomon (RS) error correction coding are analyzed and their respective approaches are analyzed. The advantages and disadvantages of these two algorithms are compared, Different application conditions. The PGZ algorithm was successfully implemented in high-speed hardware description language (VHDL), and the ideal simulation result was obtained.