TY - JOUR
T1 - An Improved Local Stability Criterion for Digital Filters with Interference and Overflow Nonlinearity
AU - Kokil, Priyanka
AU - Jogi, Srinivasulu
AU - Ahn, Choon Ki
AU - Kar, Haranath
N1 - Funding Information:
Manuscript received March 8, 2019; revised April 27, 2019; accepted May 21, 2019. Date of publication May 24, 2019; date of current version March 4, 2020. This work was supported in part by the Government of India, Department of Atomic Energy, under Grant 02011/6/2019NBHM(R.P)/R&D II/1615, and in part by the National Research Foundation of Korea through the Ministry of Science, ICT, and Future Planning under Grant NRF-2017R1A1A1A05001325. This brief was recommended by Associate Editor S. Wang. (Corresponding author: Choon Ki Ahn.) P. Kokil and S. Jogi are with the Department of Electronics and Communication Engineering, Indian Institute of Information Technology, Design and Manufacturing Kancheepuram, Chennai 600127, India (e-mail: kokilnit@gmail.com; edm17d004@iiitdm.ac.in).
PY - 2020/3/1
Y1 - 2020/3/1
N2 - This brief presents an improved local stability condition for digital filters with saturation overflow nonlinearities and external interference. This brief analyzes the local stability characteristics of digital filters with zero external interference and achieves the H∞ performance level with external interference. The proposed criterion is shown to be an improvement over an existing criterion in the literature. Numerical examples are provided to show the usefulness of the established criterion.
AB - This brief presents an improved local stability condition for digital filters with saturation overflow nonlinearities and external interference. This brief analyzes the local stability characteristics of digital filters with zero external interference and achieves the H∞ performance level with external interference. The proposed criterion is shown to be an improvement over an existing criterion in the literature. Numerical examples are provided to show the usefulness of the established criterion.
KW - Asymptotic stability
KW - external interference
KW - linear matrix inequality (LMI)
KW - overflow oscillation
KW - saturation arithmetic
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U2 - 10.1109/TCSII.2019.2918788
DO - 10.1109/TCSII.2019.2918788
M3 - Article
AN - SCOPUS:85080942510
VL - 67
SP - 595
EP - 599
JO - IEEE Transactions on Circuits and Systems I: Regular Papers
JF - IEEE Transactions on Circuits and Systems I: Regular Papers
SN - 1549-8328
IS - 3
M1 - 8721514
ER -