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流水线结构的维特比回溯算法及其实现
A Pipelined Memory Management in Traceback Viterbi Decoders and Its Implementation
【摘要】 维特比解码中,在长约束长度或较深译码深度的情况下,内存管理回溯算法相对寄存器交换法有很大的优势。该文在一种现有的节省内存的内存管理算法的基础上,提出了新的流水线结构的内存管理回溯算法,可以自动处理连续输入的不同长度的帧。并且依据IEEE802.16的高速应用实例,在Xilinx的FPGA上实现了该算法。
【Abstract】 The traceback method is one of two known ways to store decisions made by the add-compare-select unit of a Viterbi decode, and then provides decoded bits as output. Memory management traceback method can offer high performance. This paper gives a pipelined memory management method based on a given memory management method, and gives a FPGA implementation for IEEE 802.16 application.
【关键词】 维特比解码器;
内存管理回溯算法;
流水线;
【Key words】 Viterbi decode; Memory management traceback algorithm; Pipeline;
【Key words】 Viterbi decode; Memory management traceback algorithm; Pipeline;
- 【文献出处】 计算机工程 ,Computer Engineering , 编辑部邮箱 ,2004年03期
- 【分类号】TP303
- 【被引频次】2
- 【下载频次】181