【摘要】 在OFDM系统中,无线信道的准确估计很大程度上决定了系统的传输性能,提出了一种时频变换信道估计模型,并将它应用于自适应OFDM系统中的信道估计,通过与理想自适应系统相比较,研究了模型的性能以及信道估计的误差对于系统性能的影响。更多还原

【Abstract】 In the OFDM System,exact estimation of wireless channel largely determines transmission performances of the system. A channel estimation model of time-frequency transform is put forward,and is used for channel estimation of adaptive OFDM system. Performances of the model and the error of channel estimation are researched via comparison with ideal adaptive system.更多还原