Journals / Uludağ Üniversitesi Mühendislik Fakültesi Dergisi / 2026 / Cilt: 25 Sayı: 2

The Noise Sensitivity in Transform based Harmonic Estimation Methods

DÖNÜŞÜM TABANLI HARMONİK KESTİRİM YÖNTEMLERİNDE GÜRÜLTÜ DUYARLILIĞI

Fahri Vatansever(ULUDAĞ ÜNİVERSİTESİ)0000-0002-3885-8622
Meltem Kulu(ULUDAĞ ÜNİVERSİTESİ)0000-0003-0473-7731
Pages
755–766
Publication Date
2020-08-31
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Performance analyzes are presented by making a comparative analysis of the related methods at different noise levels.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The detecting, measuring, controlling and suppressing harmonics is extremely important.
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Key Findings & Data:For these purposes, there are many methods in the field of harmonic analysis.
💡
Conclusion & Impact:Performance analyzes are presented by making a comparative analysis of the related methods at different noise levels.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Harmonik · harmonik kestirimi · gürültü duyarlılığı

Abstract

The detecting, measuring, controlling and suppressing harmonics is extremely important. For these purposes, there are many methods in the field of harmonic analysis. However, like the methods of other fields, these methods are affected by factors such as sampling, windowing, and noise. In this study, noise sensitivities of five different transform based methods (fast Fourier transform, chirp z-transform, Hartley transform, Hilbert-Huang transform, wavelet transform) in the harmonic analysis were investigated. Performance analyzes are presented by making a comparative analysis of the related methods at different noise levels.

Özet

Harmoniklerin tespit edilmesi, ölçülmesi, kontrol edilmesi ve bastırılması son derece önemlidir. Bu amaçlarla harmonik analizi alanında birçok yöntem mevcuttur. Ancak bu yöntemler - diğer alanlara ait yöntemler gibi - örnekleme, pencereleme, gürültü gibi faktörlerden etkilenmektedirler. Gerçekleştirilen çalışmada; harmonik analizi alanındaki yaygın beş farklı dönüşüm tabanlı yöntemin (hızlı Fourier dönüşümü, chirp z-dönüşümü, Hartley dönüşümü, Hilbert-Huang dönüşümü, dalgacık dönüşümü) gürültü duyarlılıkları incelenmiştir. Farklı gürültü seviyelerinde, ilgili yöntemlerin karşılaştırmalı analizleri yapılarak performans analizleri sunulmuştur.

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Cite This Article

Vatansever, F., Kulu, M. (2020). The Noise Sensitivity in Transform based Harmonic Estimation Methods. Uludağ Üniversitesi Mühendislik Fakültesi Dergisi, Cilt: 25 Sayı: 2, 755–766. https://doi.org/10.17482/uumfd.715864

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