A Class of Digital Integrators Based on Trigonometric Quadrature Rules

This article proposes a new closed-form design of wideband infinite impulse response digital integrators using numerical integration rules that are constructed via trigonometric interpolation. The proposed method can be used to design integrators satisfying prescribed frequency-domain specifications...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2024-06, Vol.71 (6), p.6128-6138
Main Authors: Ali, Talal Ahmed Ali, Xiao, Zhu, Jiang, Hongbo, Li, Bo
Format: Article
Language:English
Subjects:
Broadband
Complexity theory
Design methodology
Digital integrator
Digital integrators
Frequency-domain analysis
IIR filters
Impulse response
Inertial navigation
Interpolation
Navigation systems
Numerical integration
numerical integration rules
Quadratures
Specifications
Strapdown inertial navigation
trigonometric interpolation
Tuning
Wideband
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Summary:This article proposes a new closed-form design of wideband infinite impulse response digital integrators using numerical integration rules that are constructed via trigonometric interpolation. The proposed method can be used to design integrators satisfying prescribed frequency-domain specifications. Design examples with various specifications are given. Simulation comparisons with existing methods are presented to demonstrate the effectiveness of the new design method. The proposed method is experimentally verified on two real applications: 1) Rogowski current transducer and 2) strapdown inertial navigation system. The results show that our method can efficiently improve the integration bandwidth under low sampling rates compared to existing ones and, hence, is attractive for resource-constrained applications that require wideband integration.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2023.3290247