Title :
Correction Structures for Linear Weakly Time-Varying Systems
Author :
Soudan, Michael ; Vogel, Christian
Author_Institution :
Signal Process. & Speech Commun. (SPSC) Lab., Graz Univ. of Technol., Graz, Austria
Abstract :
This paper presents correction structures compensating for the impact of linear weakly time-varying systems on bandlimited signals. The proposed structures can be used for the postprocessing and preprocessing of linear weakly time-varying systems which complements and generalizes the literature on iterative postcorrection methods. Furthermore, the precorrection of mixed-signal systems is discussed by investigating the computationally efficient preprocessing of nonuniform zero-order-hold signals in digital-to-analog converters.
Keywords :
digital-analogue conversion; iterative methods; signal processing; time-varying systems; bandlimited signals; correction structures; digital-to-analog converters; iterative postcorrection methods; linear weakly time-varying systems; mixed-signal system precorrection; nonuniform zero-order-hold signal preproessing; Approximation methods; Delay; Iterative methods; Polynomials; Time varying systems; Transfer functions; Vectors; ADC; DAC; correction structures; time-varying system;
Journal_Title :
Circuits and Systems I: Regular Papers, IEEE Transactions on
DOI :
10.1109/TCSI.2012.2185308