Improved channel estimation for PC-based software radio DVB-T receiver

  • Authors:

  • Shu-Ming Tseng;Yan-Ting Li;Yueh-Teng Hsu

  • Affiliations:

  • Department of Electronic Engineering, National Taipei University of Technology, Taipei, Taiwan;Department of Electronic Engineering, National Taipei University of Technology, Taipei, Taiwan;Lite-On Technology Corporation, Taipei, Taiwan

  • Venue:
  • WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
  • Year:
  • 2009

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Abstract

In the paper, we propose an improved discrete Fourier transform (DFT)-based channel estimation for a PC-based software DVB-T receiver testbed. The proposed channel estimation algorithm includes an adaptive low pass filter whose passband get wider when higher moving speed. The image quality of the proposed scheme is significantly better than that of the traditional scheme in realistic mobile channels (not simulated mobile channels).