【摘要】 针对频选快衰落信道 ,本文提出卡尔曼滤波信道跟踪、软输出判决反馈均衡及软输入软输出信道解码迭代处理的Turbo均衡算法以充分利用已获得的信息 ,实现信道估计、信道均衡与信道解码的迭代更新 ,并克服传统判决反馈均衡器误差传播的缺陷 .仿真表明 ,本算法能有效地跟踪快衰落信道 ,经两次迭代就可获得较为满意的码间干扰消除效果更多还原

【Abstract】 This paper proposes a Turbo equalization algorithm,which consists of Kalman Filter channel tracing and soft-output decision-feedback equalization (DFE) and soft-input soft-output channel decoding,to realize iterative channel estimation,channel equalization and channel decoding for frequency-selective fast-fading channels.The simulations show the proposed algorithm can efficiently trace the fast-fading channel and reduce greatly the inter-symbol interference (ISI) after two iterations.更多还原