1 / 7

Digital Adaptive Equalizer

Digital Adaptive Equalizer. Qin Zhang, Ph.D. System Block. C_II. D_II. X. X. I Out. I Data. D_QI. C_QI. +. X. X. D_IQ. C_IQ. Slicer. Q Out. I Data. X. X. +. C_QQ. D_QQ. X. X. Slicer. A Digital Adaptive Equalizer. Digital PLL. f e. f in. K d. +. f o. W_z. a. K v.

reba
Download Presentation

Digital Adaptive Equalizer

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Digital Adaptive Equalizer Qin Zhang, Ph.D

  2. System Block

  3. C_II D_II X X I Out I Data D_QI C_QI + X X D_IQ C_IQ Slicer Q Out I Data X X + C_QQ D_QQ X X Slicer A Digital Adaptive Equalizer

  4. Digital PLL fe fin Kd + fo W_z a Kv Ka Z + Z + + Z a_z Z delay_z Nco_z f_z

  5. LMS Adaptive Equation C(k): equalizer coefficient vector; k : time count at symbol rate;  : adaptive control parameter; E(k): error output from slicer; X(k): equalizer input (I data and Q data); C(k+1)=C(k)- E(k)•X(k)

  6. The Difference You Can Make! 7 dB Difference !

More Related