首页> 外文会议>IEEE International Symposium on Broadband Multimedia Systems and Broadcasting >An improved LUT based DPD technique for nonlinear HPA in ATSC DTV system
【24h】

An improved LUT based DPD technique for nonlinear HPA in ATSC DTV system

机译:ATSC DTV系统非线性HPA的改进基于LUT基于DPD技术

获取原文

摘要

It is well known that high power amplifier (HPA) induces nonlinear distortion around its saturation region. It causes the inter-modulation distortion (IMD) and spectrum re-growth problems. Thus, the digital pre-distortion (DPD) technique is used to improve the linearity of HPA. This paper proposes the adaptive DPD technique, which is composed of a look-up table (LUT) based adaptive update algorithm, for the compensation of HPA nonlinearity. From the simulation results, the proposed technique shows the better convergence speed and spectrum re-growth suppression compared with conventional LUT technique.
机译:众所周知,高功率放大器(HPA)在其饱和区域周围引起非线性变形。它导致调制间失真(IMD)和频谱重新生长问题。因此,数字预失真(DPD)技术用于改善HPA的线性度。本文提出了一种自适应DPD技术,其由基于查找表(LUT)的自适应更新算法组成,用于补偿HPA非线性。从仿真结果,所提出的技术表明,与传统的LUT技术相比,该技术更好地收敛速度和频谱再生抑制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号