Causality and delay and physics in real systems

Author

Tsiklauri, Mikheil ; Zvonkin, Mikhail ; Jun Fan ; Drewniak, James ; Chen, Qinghua Bill ; Razmadze, Alexander

Author_Institution

EMC Lab., Missouri Univ. of Sci. & Technol., Rolla, MO, USA

fYear

2014

fDate

4-8 Aug. 2014

Firstpage

961

Lastpage

966

Abstract

In the present work causality property and physics behind it is analyzed for physical systems. Different methodologies for checking or enforcing causality in both time and frequency domain are discussed. Causality metric for measuring causality violation is introduced. Physical anomaly of a system with perfectly linear phase is discussed and shown that small perturbation of non-linear portion of the phase can fix the non-causal anomaly.

Keywords

causality; delays; frequency-domain analysis; signal processing; time-domain analysis; transfer functions; transient response; causality metric; causality property; causality violation measurement; delay; frequency domain; impulse responses; noncausal anomaly; nonlinear portion perturbation; perfectly linear phase; physical systems; signal integrity; time domain; transfer function; Delays; Estimation; Insertion loss; Numerical models; Polynomials; Transfer functions; Causality metric; Delay; Impulse response; Kramers-Kronig relations; Linear phase; Pulse response; Transfer function;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (EMC), 2014 IEEE International Symposium on

Conference_Location

Raleigh, NC

Print_ISBN

978-1-4799-5544-2

Type

conf

DOI

10.1109/ISEMC.2014.6899107

Filename

6899107