【摘要】 提出了一种在没有循环段前缀下使数据循环化的算法,先采用基于PN序列进行时域迭代相关检测方法估计出时域信道响应,再用估出的信道响应对之后的OFDM符号进行循环化重构,从而CP-OFDM的信道均衡方式在此系统下也同样适用。仿真结果表明,结合这两种算法后能使系统在各种多径条件下具备令人满意的性能。更多还原

【Abstract】 A cyclic restoration algorithm is proposed, firstly estimating the channel impulse response (CIR) with PN-based turbo correlation detection in time domain and then using the equalization techniques to reconstruct the conventional cyclic prefixed OFDM (CP-OFDM) based on this algorithm. Simulation shows that this method can provide satisfactory performance under various multipath channel conditions in TDS-OFDM.更多还原