论文部分内容阅读
提出了一个用于频率选择性衰落信道中传输的正交频分多路(OFDM)的定时和频率联合估计的算法。这种估计器利用了接收信号的二阶循环特性,而且不需要信道冲激响应的信息。计算机仿真表明,采用所提出的方案能显著地提高估计器的性能。
An algorithm for timing and frequency estimation of Orthogonal Frequency Division Multiplexing (OFDM) for transmission in frequency-selective fading channels is proposed. This estimator takes advantage of the second-order loop characteristics of the received signal and does not require channel impulse response information. Computer simulation shows that using the proposed scheme can significantly improve the performance of the estimator.