Laguerre盲均衡器的设计与仿真

现代高速卫星通信、遥感,以及远程侦查无人机的数据传输速率可达Mb/s甚至Gb/s,码间干扰和群延时不可忽视。针对卫星通信的应用,提出了一种易于实现的Laguerre算法,和有利于消除码间干扰和群时延的分数间隔结构,设计出了一种高效地盲均衡器。Laguerre算法采用有限的滤波阶数,就可以达到IIR长脉冲滤波的效果;而分数间隔均衡器（FSE）能够降低采样相位敏感性,可以有效改善由于位同步相位误差造成的性能损失,分数间隔均衡器的设计目标立足于具有较好性能和易于工程上FPGA的实现。文中通过仿真均衡前后误码增益,得到几种不同信道下的均衡器的性能理论曲线,可以为高速数传均衡器设计提供有益参考。

Design and Simulation of Laguerre Blind Equalizer

The data rate of modern high-speed satellite communications,tracking and remote detection of UAVs,could be up to Mbps or even Gbps,and ISI and group delay could also not be ignored.For the application of satellite high-speed data transmission,this paper proposes an easy-to-implement Laguerre algorithm and fractional interval structure,which is beneficial to eliminating the inter-symbol interference and group delay,and gives the design of an efficient blind equalizer.Laguerre algorithm,with a limited number ...