With the advantage of high speed, high spectrum efficiency, can strongly combat multi-path delay and fading, OFDM (Orthogonal Frequency Division Multiplexing) is widely used in various digital communication systems.
OFDM (正交频分复用)技术具有速率高、频谱利用率高、抗多径时延、抗信道衰落等优点,被广泛应用于各种数字通信系统中。
参考来源 - OFDM系统中基于导频的信道估计的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
引入多帧联合统计，以提高多径时延估计精度。
Probability statistics for multipath delay of multi-frame was introduced to improve the performance of multipath estimation.
基于频域子空间思想，给出了一种适用于非周期扩频系统的多径时延估计方法。
Based on the idea of frequency domain subspace, a multipath delay estimating method for aperiodic spreading system is proposed.
当采用相关法估计时间延迟时，多径时延的分辨率受到相关函数主(？)宽度的限制。
Multipath time delay estimation is constrained by the width of the signal correlation function when using correlation method.
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