Turbo码的DSP和FPGA实现之比较

Turbo码以其优异的纠错性能,在移动通信系统中倍受重视。为了能在工程实践中更准确地控制信号处理所需要的时间,更有效地优化硬件资源的分配布局,选择以哪种方式实现Turbo码成为引人关注的问题。针对该问题,在介绍Turbo码的编译码算法原理基础上,对编码器和基于Max-Log-Map算法的译码器分别进行了FPGA和DSP设计与实现,并比较了这2种方式在处理时间、资源占用以及实现难易程度上的差异,为工程应用提供了的数据参考。

Comparison of the Implementations of Turbo Code Based on DSP and FPGA

More and more attention is paid on Turbo codes for its good performance.In order to control signal processing time more accurately and distribute hardware resource more efficiently,the implementation of Turbo code has become a focus in engineering practice.Based on the introduction of the principles of Turbo encoding and decoding,we designs and has completed the implementation of Turbo codes encoder and decoder adopting Max-Log-Map algorithm both on FPGA and DSP.The above two implementations are compared in processing time,resource and implementing difficulty,which provides data reference for engineering application.