Based on the intensive research on the decoding algorithm of the turbo codes, a turbo code decoder with a high efficient structure is implemented with FPGA, and have good performence when used in WCDMA system.

• 在深入研究 Turbo码译码算法的基础上 ,提出一种高效实现 log- MAP算法的硬件结构 ,基于此结构实现的用于宽带码分多址系统的 Turbo码译码器具有较低的误码率和较小的译码延迟