均衡器误差控制的AGC设计新方法

A Novel AGC Scheme Based on Control of Equalizer Error

提出了一种基于均衡器的自动增益控制设计方法,直接利用均衡器产生的误差自适应地补偿输入信号增益,有效地减小了硬件复杂度.仿真结果表明,在信号严重畸变的情况下,采用这种方法设计的电路具有良好的增益捕捉和跟踪性能.

Traditional approaches of AGC acquire error control signals by estimating the average value over a long period of time. It results in complicated circuitry and is susceptible to intersymbol interference. In this paper, we present an equalizer-based AGC approach that uses the equalizer＇s error to adaptively compensate for the input signal and effectively reduces the complication of the hardware. Simulation results demonstrate good acquisition and tracking performances under circumstances of degraded signal.