Open AccessA Design Method of Hybrid Analog/Asymmetrical‐FIR Pulse‐Shaping Filters with an Eye‐Opening Control Option against Receiver Timing Jitter
Author(s) -
Yao ChiaYu
Publication year - 2010
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.10.0109.0725
Subject(s) - jitter , analogue filter , electronic engineering , frequency domain , control theory (sociology) , filter (signal processing) , computer science , analogue electronics , engineering , digital filter , electronic circuit , electrical engineering , control (management) , artificial intelligence , computer vision
This paper presents a method of designing hybrid analog/asymmetrical square‐root (SR) FIR filters. In addition to the conventional frequency domain constraints, the proposed method considers time‐domain constraints as well, including the inter‐symbol interference (ISI) and the opening of the eye pattern at the receiver output. This paper also reviews a systematic way to find the discrete‐time equivalence of analog parts in a band‐limited digital communication system. Thus, a phase equalizer can be easily realized to compensate for the nonlinear phase responses of the analog components. With the hybrid analog/SR FIR filter co‐design, examples show that using the proposed method can result in a more robust ISI performance in the presence of the receiver clock jitter.