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<p>This article demonstrates that all the mayfly optimization algorithm (MOA) based fractional-order digital integrator (FODI) designs published in [<CitationRef CitationID="CR2">2</CitationRef>] are unstable, i.e., all the four proposed MOA-based FODI designs have one/more pole(s) located outside the unit circle in the Z-plane. We investigate the cause for this instability which renders the MOA-based FODIs unsuitable for physical implementation. Thus, the results and conclusions of [<CitationRef CitationID="CR2">2</CitationRef>] are misleading.</p>

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Comments on “Optimal Design of IIR-Type Fractional Order Digital Integrator Using Mayfly Optimization Algorithm”

  • 期刊论文

  • 发表日期：

    2026年7月31日

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  • Shibendu Mahata

摘要

This article demonstrates that all the mayfly optimization algorithm (MOA) based fractional-order digital integrator (FODI) designs published in [2] are unstable, i.e., all the four proposed MOA-based FODI designs have one/more pole(s) located outside the unit circle in the Z-plane. We investigate the cause for this instability which renders the MOA-based FODIs unsuitable for physical implementation. Thus, the results and conclusions of [2] are misleading.