基于Log-MAP算法,提出一种利用Virtex-5系列FPGA芯片实现Turbo译码算法的方案。分析研究了Turbo码的译码算法以及FPGA与DSP之间数据的并行传输,并以Virtex-5芯片为硬件平台,进行了测试仿真、综合实现、板级验证、联机验证等工作。实验结果表明,该实现方案具有良好的可行性和稳定性,已经应用在TD-LTE无线综合测试仪中。 Based on the Log-MAP algorithm, a scheme of implementing the Turbo decoding algorithm by using the Virtex-5 series FPGA chip is proposed. The decoding algorithm of Turbo code and the parallel data transmission between FPGA and DSP are analyzed and analyzed. The Virtex-5 chip is used as the hardware platform to carry out test simulation, synthesis, board level verification and on-line verification. The experimental results show that this scheme has good feasibility and stability and has been used in TD-LTE wireless tester.