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Journal : Journal of Computing Theories and Applications

Dual-Domain Temporal–Spatial Denoising Approach for Autism Spectrum Disorder EEG Signals Based on Stationary Wavelet Transform and SPHARA Syiva, Cut Siti Azola; Melinda, Melinda; Syahrial, Syahrial; Rahman, Imam Fathur; Das, Souvik; Heryanto, M. Ary
Journal of Computing Theories and Applications Vol. 3 No. 4 (2026): JCTA 3(4) 2026
Publisher : Universitas Dian Nuswantoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62411/jcta.15875

Abstract

Electroencephalography (EEG) signals are highly susceptible to noise and artifacts, which can degrade analysis accuracy, particularly in Autism Spectrum Disorder (ASD) studies. Therefore, effective preprocessing is required to improve signal quality prior to further analysis. This study proposes an integrated EEG preprocessing pipeline that combines a Finite Impulse Response (FIR) band-pass filter (0.5–70 Hz) with notch filtering and detrending, followed by temporal denoising using the Stationary Wavelet Transform (SWT) with the Daubechies 4 mother wavelet and spatial filtering based on SPHARA. This dual-domain approach is designed to address both temporal and spatial noise in multichannel EEG signals. Experimental results demonstrate that the proposed FIR combined with SWT and SPHARA pipeline consistently outperforms single-domain preprocessing methods, achieving a maximum Signal-to-Noise Ratio (SNR) of 31.93 dB. The proposed method also produces the lowest Mean Absolute Error (MAE) (16.81 µV) and Standard Deviation (SD) (0.75 µV), indicating high signal stability with minimal amplitude distortion. Root Mean Square Error (RMSE) values remain stable within the range of 29.5–592.3 µV, with a minimum RMSE of 29.5 µV, demonstrating effective noise suppression while preserving signal energy. These results confirm that integrating temporal and spatial preprocessing significantly improves EEG signal quality and supports more reliable EEG analysis for ASD-related studies.
Co-Authors 'Akla, C. M. N. -, Maison ABD. ASHAL ALAM, ABD. ASHAL Abd. Hakim Abdi Abdi, Abdi Abdul Gani Adisyar, Fathir ADITYA FITRIANSYAH Adlim, Muhammad Adnan, Zifirdaus Afdhal Afdhal Afidh, Razief Perucha Fauzie Afrah Junita Agus Putra AS Agusti Muchtar, Riri Agustinos, Putri Aisyah Rahmawati Aisyah, Zahra Putri Akbar, Zulfitrah Al Azmy, Muhammad Ridho Al Al Bahri Al Bahri, Al Bahri ALINDA NOVITA SARI, ALINDA NOVITA Alirmansyah, Alirmansyah Amirul Mukminin Amri Amri ANAA ISTIMAROH Anandari, Qalbi Shanaz Anas, Ahmad Baihaqi Andi Muhammad Abdi Andika, Yudho Angelia Leovita Anggie Nadia Dinihari Anis Nugrahawati Anjeli Ratih Syamlingga Putri Aprilita, T. Salsa Apriyanda, Apriyanda Ardh, Muhammad Reyhan Emirel ARDHIANS ABDILLAH WIJAYA, ARDHIANS ABDILLAH ARIAN DWI PEANUS, ARIAN DWI ARIEF, JAUZIE Arinil Haq Aris Doyan ARSYAD RAMADHAN DARLIS arsyad, safnil Asni Johari Asnizar, Andi Asrial ASYER AGRISELIUS Aty Mulyani Ayob, A F Azrianti, Henna Putri Azwandi Azwandi Azzahra, Miftahul Zannah A’kla, Cut Meurah Nurul Bambang Pramudya Bangun, Novi Olivia Bardi, Rezafri Barthos, Megawati Bobby Yuhanda, Bobby Burhan, Dhini Angraeni Chairunas Chairunas Chandrika Eka Larasati, Chandrika Eka Chen, Diki Cindy, Sylvia Cindy Citra, Yulita Dwi Cox, Robyn Cut Meurah Nurul ‘Akla Damanik, Putri Adhelia Br Damayanti, Latipia Damayanti, Nina Afria Das, Souvik Daulima, Mohamad Rizki Deluma, Abdul Rahman Denas Symond Deni Elnovriza DERI MUHAMAD NURENDI, DERI MUHAMAD Deriyani, Deriyani Dermawan, Alvindo Desrina, Thazilla Desy Rosmalinda Dewa Oka Suparwata DEWI APRI ASTUTI Dewi Kumala Sari Dewi, Putri Asmarani Dian Fauzi Dian Wardiana Sjuchro Diani, Irma Dila, Nuriana Dona, Ulan May Doni Irawan Saragih Dwi Agus Kurniawan DWI ARYANTA Eddy, Eddy Haryanto Effendi, Firman Eka Meigalia ekamaida, ekamaida Elfrida, Elfrida Eliza, Nova ELVI MAILANI Ely Susanti Emi, Raja Emmitt, Marie Erika Erika Erlangga Erlangga Erlangga, Haqqy Rerian Erlidawati Erlidawati Erniati Erniati Ernita Dewi Meutia Eva Ayuzar, Eva Eva Yuniritha, Eva Evy Damayanthi Fadlisyah Fadlisyah Fahrinisa, Febika Fairus, Fairus Faizal Chan Faizal Faizal, Faizal FAKHRULLAH, AHMAD FARID Faradila, Nandatul Faturrahman Fauzi, Sabri Fauziah, Dini FEBRIAN HADIATNA Febrina Rolin Firnandes, Banokta FITRA PADILLAH Fitriani Fitriani Fitriyani Bahriyah Frima Elda Garmelia, Elise GEMAHAPSARI, PARTRIANTI Habib EY, M. Hadinata, Fitra Wira Hafni Zahara Hakri Bokingo, Agus Handayani, Meutia Hanniyah, Ummu Hardi, Vitri Angraini HARI WASKITO Hariandi, Ahmad Haris Danial hartanto hartanto Haryanto Haryanto Hasibuan, Nina Marianna Hayatun Nufus Heltha, Fahri HERI SEPTIADI ALIUS Heriyanto, Teguh Hidayati Hidayati Hikmawati Hikmawati Hilda Anjarsari Hudaya, Nur Humaya, Riti Husni Sabil Hussain, Zulkifli Ibrahim, Irawan Ida Suryani Wijaya IHFAZH NURDIN EKA NUGRAHA Ikhsan, Nur Ilham Martadona Imamshadiqin, Imamshadiqin Imanullah, Imanullah Indri Hapsari Ira Maisarah Irma Irma Irmayunita, Irmayunita Irpan Ali Rahman Isma, Muhammad Fauzan Israyati Ita Karlina Izmayanti, Dewi Kania Izzawati Arlis Jamil, Fajrul Jamilus Jamilus Jaya Jaya Joni Rokhmat Juwita Saputri Kango, Riklan Kania Izmayanti, Dewi Kania Sawitri Karsim, Nanang Khairani, Sufina Khairul Mukmin Lubis, Khairul Mukmin Kiayi, Verliana Kifron, Muhammad Kifron Kiska, Nurul Kiska, Nurul Delima Kosim Kosim Koto, Arthur Gani Kristiana, Nelly Kurniawan, Dwi Agus Kuswanto Kuswanto Laksono, Arief Budi Lamusu, Rizal Larote, Yonis Lasarudin, Alter LAURENSIA MASRI PERANGINANGIN Lefita, Lefita Leni, Yusyam Liana Rahmayani Lindiawatie, Lindiawatie Lingce, Septyara Lubis, Rizka Adelia Lukman Samboteng & Rulinawaty Kasmad Luthfiah, Qonita M Ary Heryanto M Rusdi M. Abzar Duraesa M. Alpian Mahendra, Bachtiar Isra Maisura Maisura Majariana Krisanti Maku, Rubiyanto Mala Nurilmala Mandasari, Nur Kibah Manullang, Irma Warny Lamberta MARALIS, RENI Mardiah, Nur Ainun Mariati, Wandesi Maryono Maryono Masyhar, Abdi Nurul Mataniari, Azhari MAYA INTAN PRATIWI Melinda Melinda Melly Br Bangun Melvi Lesmana Alim Melvi Lesmana Alim Milda Ernita Minhajuhayati, Dieni Misbahul Jannah Mohamad Ilyas Abas Mohammad Irfan Mufti Muhammad Fajri Muhammad Hatta MUHAMMAD HENDRA Muhammad Ikhlas Muhammad JAMIL Muhammad Nasir Muhammad Nazar Muhammad Rusdi Muhammad Zuhdi Mukhlis, Mukhllis Mukhroji Mukhroji Muliani Muliani, Muliani Muliari Muliari Munandar, Roni Arif Munawar Khalil Munira, Nanda Murni, Riska Nadhrati Surura, Hedya Nana Subarna, Nana NANDANG TARYANA Nasaruddin Nasaruddin Nasihin, Ahmat Nasruddin Nasruddin NASRUN HARIYANTO Nastiti, Febry Tamilia Nasution, Riski Dahrian Nasution, Suhailah Haya Nasution, Zulaikha Rivera Natalia Silalahi, Natalia Naufal, Daffa Imam Nawahdani, Ahmad Mansur Nazarudin Nelfi Erlinda Nella Tri Agustini, Nella Tri Niken Syafitri Ningsih, Sri Tuti Nizlel Huda Nolasary, Mega Putri Noviyanti, Silvina Novyar Satriawan Fikri, KMS Nur Aini Nur Hikmah NURHADINA, NURHADINA Nurhaswinda Nurhudayah Manjani NURILAHI, DESI KURNIA Nurmayana, Nurmayana Nurmayenti, Marisa Nurwijayanti Nyirahabimana, Pascasie Oktamaroza, Oktamaroza Olii, Muhammad Ramdhan Pane, Andina Ramadhani Putri Pangestu, Rivo Ilhami Pardi, Ahmad Perdana, Rahmat Pipih Suptijah Piyana, Suci Okta Pranata, Eryc Pranata, Widya Eka Prasetyo, Repki Pratiwi, Bengi Priscila Fitriasih Limbong Purba, Nazwi Haliza Puspita Sari Putri, Adinda Aulia PUTRI, DWITYA AMANDA Putri, Embarianiyati Putri, Sasri Agustina Putri, Sindy Levina Putriningtias, Andika R, Dony. R. GERHA TERIMANANDA, R. GERHA R.M. Pramutomo Rafli, M. RAGIL, YUDHO Raharja , Sapta Rahmadian, Alfina Wahyu Rahman, Adriyan Ardi Rahman, Imam Fathur Rahmayani Rahmayani Rahmi Rahmi Ramadhani, Noer Risky Ramjani, Afwan Ramlan, H. Ratno, Suyit Ratu Fazlia Inda Rahmayani Restianingsih Putri Rahayu Rezeki, Nura Rezeki, Nura Rian Prayudi Saputra Rika Anggraini Rika Astuti RIKI ARNANDO, RIKI Rimbawan , Rina Febriana Riri Ezraneti Risdaneva, Risdaneva Risnita Tri Utami Ritonga, Gara Hasonangan Rizal Munadi Rizki Prakasa Hasibuan Robiansah, Muhammad Andika Rusdial Marta Rusman Rusman RUSTAMAJI RUSTAMAJI Ruzanna, Arina RYAN AGUNG TRIAJI Ryan, Josephine S Sriyadi S, Herman. Safitri, Diya Sahril Nur Salaeh, Subhan Saleky, Dandi SALISTIA PUTRA PERDANA Saputera, Muhamad Rizky Saputri, Dewi Sari, Westri Wulan Sarmita, Sarmita Sartika, Ayu Satya Putra, Muhammad Yulianda Sella, Febri Annisa Selviawati, Evi Septiasari, Retno shella monica, shella Shusan Ayu Areke Putri Siagian , Nur Rahmi Br. 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