论文部分内容阅读
为了对信道参数进行实时有效的估计,提高无线通信系统的性能,针对高频宽带信道条件下存在的群时延扩展现象,提出一种基于特定信道模型的参数化估计方法,反映了宽带信道中与信号频率有关的时延散布现象。该方法能较好将此信道模型进行适当简化,即仅使用部分低阶参数,可大幅降低其复杂度,提高了算法的工程实用性。针对简化的信道模型,对算法进行了仿真和实测数据分析。结果表明,采用该方法可以有效地对高频宽带信道的信道参数做出估计。
In order to estimate the channel parameters in real time and improve the performance of the wireless communication system, a parameter estimation method based on the specific channel model is proposed to deal with the group delay spreading phenomenon under the condition of high-frequency wideband channel. Delay spread associated with signal frequency. This method can properly simplify this channel model, that is, using only some low-order parameters can greatly reduce the complexity and improve the engineering practicability of the algorithm. Aiming at the simplified channel model, the algorithm is simulated and the measured data are analyzed. The results show that this method can effectively estimate the channel parameters of high frequency wideband channel.