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[Discuss-gnuradio] the block equalizer in ofdm


From: w xd
Subject: [Discuss-gnuradio] the block equalizer in ofdm
Date: Wed, 11 Nov 2015 17:14:24 +0800

Hi,

    Thank you in advance.
    I have look at the api, and find 4 class about the ofdm equalizer,

    ofdm_equalizer_1d_pilots, ofdm_equalizer_base,ofdm_equalizer_simpledfe,ofdm_equalizer_static.

   1.Can someone tell their difference and relation.

   2.I look at the ofdm_frame_equalizer_vcvc_impl.cc.

   and the code
 
  "     d_eq->reset();
      d_eq->equalize(out, frame_len, d_channel_state);
      d_eq->get_channel_state(d_channel_state);
    
  "
  I know the ofdm grc example use the ofdm_equalizer_simpledfe.Can someone tell me the reason of  ofdm_equalizer_simpledfe?It's base on LS or MMSE or others?Can someone give a reference about the  ofdm_equalizer_simpledfe.

    Thank you so much.

Best regards,
xd

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