NDLI: Signal Delay Reconstruction Method Based on Dynamic Index and Complex-Coeﬃcient Lagrange Interpolation

Content Provider	IET Digital Library
Author	Zhou, Yang Zheng, Zhe Wu, Siliang
Abstract	This paper presents a large-range, highprecision and continuously variable delay reconstructionmethod for wideband and arbitrary bandlimited signal,which combines dynamic index technique with complexcoeﬃcient Lagrange interpolation technique. The methodsamples time-continuous bandlimited signal and storessamples in sequence. It manages to obtain the highprecision delay parameters of every sampling period fromdesired delay to compute the so-called index positionvariable and interpolator parameters. It dynamically indexes and chooses a set of samples to implement piecewisecomplex-coeﬃcient Lagrange interpolation for reconstructing the delayed sequences. The time-continuous delay reconstruction signal can be simply accomplished throughdigital-to-analog conversion. The mathematical model ofthe method and its transformed form is given, and thearithmetic of dynamic index and complex-coeﬃcient Lagrange interpolation is derived. Simulation and test resultsshow the validity and performance of the method.
Starting Page	750
Ending Page	754
Page Count	5
ISSN	10224653
Volume Number	24
e-ISSN	20755597
Issue Number	Issue 4, Oct (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/cje/24/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/cje.2015.10.014
Journal	Chinese Journal of Electronics
Publisher Date	2015-10-01
Access Restriction	Open
Rights Holder	© Chinese Institute of Electronics
Subject Keyword	Arbitrary Bandlimited Signal Delayed Sequences Digital-to-analog Conversion Dynamic Index Technique High-precision Delay Parameter Index Position Variable Interpolation Interpolation And Function Approximation Mathematical Model Numerical Analysis Piecewise Complex-coefficient Lagrange Interpolation Technique Signal Processing And Detection Signal Processing Theory Signal Reconstruction Signal Sampling Time-continuous Bandlimited Signal Time-continuous Delay Reconstruction Signal Method Variable Delay Reconstruction Method Wideband Bandlimited Signal
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering

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