Modeling Time Delays in Simulink

MATLAB
1,031 views February 12, 2026

Time delays are a critical component in modeling any real-world system. Learn how to model multiple time-delay scenarios in Simulink®. Model discrete-time delays, continuous-time delays, fractional integer delays, variable delays, and Bessel-Thomson filters using a variety of Simulink blocks. Download the files used in this video here: https://github.com/kschutz68/time_delay_modeling_MATLAB.git Related resources: - Adaptive Filters: https://bit.ly/339uGor - System Identification of FIR Filter Using LMS Algorithm: https://bit.ly/3MVFMp9 - System Identification of FIR Filter Using Normalized LMS Algorithm: https://bit.ly/4do31To - LMS Filter: https://bit.ly/3MXM0EV - Compare RLS and LMS Adaptive Filter Algorithms: https://bit.ly/3zEztDa - Recursive Algorithms for Online Parameter Estimation: https://bit.ly/4eA8o34 Chapters: 0:00 Introduction 0:25 Why Simulink for Modeling Time Delays 1:32 Compare MATLAB and Simulink for Modeling Delay in an Oversampled FIR Filter 3:15 Quick Look at the Many Delay Operators in Simulink 5:38 Modeling Fixed Integer Delays 6:16 Modeling Variable Integer Delays 7:21 Modeling Variable Fractional Delays 9:13 Modeling Farrow Delay Filter using Primitives 10:21 Modeling Continuous-Time Delays 12:55 Compare Variable Time Delay and Variable Pulse Delay blocks 20:30 Compare Variable Time Delay and Variable Integer Delay blocks 20:55 Using Modeling Fixed-Delays using Bessel Thomson Analog Filters 22:25 Modeling Variable Delay Analog Filters 26:00 Breaking Algebraic Loops 26:50 Concluding Remarks -------------------------------------------------------------------------------------------------------- Get a free product trial: https://goo.gl/ZHFb5u Learn more about MATLAB: https://goo.gl/8QV7ZZ Learn more about Simulink: https://goo.gl/nqnbLe See what's new in MATLAB and Simulink: https://goo.gl/pgGtod © 2025 The MathWorks, Inc. MATLAB and Simulink are registered trademarks of The MathWorks, Inc. See www.mathworks.com/trademarks for a list of additional trademarks. Other product or brand names may be trademarks or registered trademarks of their respective holders.

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