Improvement of Chromatic Dispersion and Differential Group Delay Tolerance of Incoherent Multilevel Signaling with Receiver-side Digital Signal Processing

2010 ◽  
Author(s):  
Nobuhiko Kikuchi ◽  
Shinya Sasaki
Keyword(s):  
Signal Processing ◽  
Digital Signal Processing ◽  
Group Delay ◽  
Chromatic Dispersion ◽  
Digital Signal ◽  
Receiver Side ◽  
Differential Group Delay ◽  
Delay Tolerance ◽  
Differential Group

scholarly journals FIR to FIR Model Reduction with Linear Group Delay in Passband by SDP Optimization

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Haijiang Hu ◽  
Shaojing Song ◽  
Fengdeng Zhang
Keyword(s):  
Signal Processing ◽  
Digital Signal Processing ◽  
Model Reduction ◽  
Digital Filter ◽  
Group Delay ◽  
Digital Signal ◽  
Optimization Method ◽  
Filter Model ◽  
Fir Digital Filter ◽  
Fir Model

Filter model reduction is an important optimization method in digital signal processing. A method of FIR to FIR model reduction using SDP optimization is proposed in this paper. At first, we use SDP to design an original FIR filter. Then we name a general K-order FIR digital filter H1z−1 with coefficient values equal to the first K + 1 filter coefficient values of H0z−1. Finally, we design a new general K-order FIR digital filter H2z−1 connected in parallel with H1z−1 using SDP optimization. The experiment results show this method has good performance on the magnitude error and the linear phase in passband. Therefore, this method can be used in the field of digital signal processing.

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