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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Journal of ICT Research and Applications Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Jurnal Respirologi Indonesia JINAV: Journal of Information and Visualization Devotion: Journal of Research and Community Service Makara Journal of Technology International Journal of Electrical, Computer, and Biomedical Engineering (IJECBE) Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital
Dodi Sudiana
Department Of Electrical Engineering, Faculty Of Engineering, Universitas Indonesia, Depok 16424, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Health Professions Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics

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Switch Configuration Effect on Stray Capacitance in Electrical Capacitance Volume Tomography Hardware Arba’i Yusuf; Harry Sudibyo S; Dodi Sudiana; Agus Santoso Tamsir; Imamul Muttakin; Wahyu Widada; Warsito P. Taruno
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 14, No 2: June 2016
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v14i2.3328

Abstract

Electrical capacitance volume tomography (ECVT) system uses six switches in one channel with configuration resembling “T” letter, so it is called “T-switch”. The working scheme of the switch can be explained in four different modes of operation, i.e. excitation mode, detection mode, ground mode, and floating mode. This research describes the effect of switch configuration to stray capacitance in ECVT hardware. Stray capacitance introduces parasitic signal from other sources; one of them is signal from another electrode at floating mode when the signal is still flowing to detection circuit. One channel, two channels, three channels, so on until thirty-two channels are connected to single detection circuit sequentially to investigate the effect of stray capacitance. Both simulation and experiment show the stray capacitance increases along with addition of channel corresponds to 0.046pF for each channel.
Electrical Capacitance Volume Tomography Static Imaging by Non-Optimized Compressive Sensing Framework Nur Afny Catur Andryani; Dodi Sudiana; Dadang Gunawan
Journal of ICT Research and Applications Vol. 10 No. 3 (2016)
Publisher : LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.ict.res.appl.2016.10.3.4

Abstract

Electrical capacitance volume tomography is a volumetric tomography technique that utilizes capacitance and fringing to capture behavior or perturbation in the sensing domain. One of the crucial issues in developing ECVT technology is the reconstruction algorithm. In practice, ILBP is most used due to its simplicity. However, it still presents elongation errors for certain dielectric contrasts. The high undersampling measurement of the ECVT imaging system, which is mathematically defined as an undetermined linear system, is one of the most challenging issues. Compressive sensing (CS) is a framework that enables the recovery of a sparse signal or a signal that can be represented as sparse in a certain domain, by having a lower dimension of measurement data compared to the Shanon-Nyquist theorem. Thus, mathematically, this framework is promising for solving an undetermined linear system such as the ECVT imaging system. This paper discusses the possibility of developing an ECVT imaging technique for static objects based on a CS framework. Based on the simulation results, Non-optimized CS does not completely succeed in providing better ECVT imaging quality. However, it does provide more localized imaging compared to ILBP. In addition, by having fewer requirements for the measurement data dimension, the CS framework is promising for reducing the number of required electrodes.
MODIFIKASI DIGITAL ELEVATION MODEL CITRA RESOLUSI TINGGI MENGGUNAKAN FUSI INTERFEROMETRI SAR DAN STEREOSAR BERBASIS FAKTOR PEMBOBOTAN Haris Suka Dyatmika; Rahmat Arief; Dodi Sudiana; Shadiq Ali; Rachmat Maulana; Marendra Eko Budiono
Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Vol. 15 No. 2 Desember 2018
Publisher : Indonesian National Institute of Aeronautics and Space (LAPAN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (621.924 KB) | DOI: 10.30536/j.pjpdcd.2018.v15.a3063

Abstract

Sensor satelit SAR mampu mengukur elevasi permukaan bumi menggunakan metode interferometri (InSAR) atau radargrametri (StereoSAR). Metode InSAR memanfaatkan fase dari citra SAR, sedangkan StereoSAR menggunakan nilai amplitudo untuk menghasilkan elevasi permukaan bumi. Kedua metode mempunyai kelebihan dan kekurangan. Beberapa permasalahan adalah akurasi rendah DEM menggunakan InSAR citra SAR di area bayangan dan singgahan, sedangkan pada metode kedua, permasalahan muncul jika korelasi silang antara kedua citra rendah. Makalah ini mengajukan metode penggabungan citra DEM InSAR dan StereoSAR untuk pembuatan citra DEM baru menggunakan citra SAR resolusi tinggi. Pasangan citra TerraSAR-X atau TanDEM-X dengan sudut datang 21 derajat digunakan dalam penelitian ini, diolah menggunakan metode InSAR dan sepasang citra dengan sudut masing-masing 21 derajat dan 41 derajat menggunakan metode StereoSAR di area Bandung dan sekitarnya. Hasil eksperimen menunjukkan bahwa DEM fusi kedua metode tersebut mempunyai akurasi yang lebih baik, dengan kesalahan absolut lebih kecil dari pada masing-masing metode InSAR dan StereoSAR, secara terpisah yaitu meningkat sebesar 3.48 m dan 1.80 m.
ALOS/PALSAR Image Processing Using Dinsar and Log Ratio for Flood Early Detection in Jakarta Based on Land Subsidences Sudiana, Dodi; Rizkinia, Mia
Makara Journal of Technology Vol. 15, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Flood that occurred in Jakarta is not only influenced by rainfall, urban planning system and drainage alone, but also may be involved land subsidence (LS). LS is possible in because Jakarta stands on top of layers of sediments and the presence of ground water consumption in very large quantities. In this research, the Advanced Land Observing Satellite (ALOS)/Phased Array type L-band Synthetic Aperture Radar (PALSAR) data was processed to determine the level of LS in Jakarta area and its relation to flood potential area. Differential interferometry method (DInSAR) was performed on two PALSAR data with different acquisition years, i.e. 2007 and 2008, respectively. DInSAR processing generated images containing information that can be converted into LS. To find the elevation changing area, log ratio algorithm was applied to those images as the additional analysis. The log ratio image is superimposed on the DInSAR result and Jakarta inundation map of 2009, to acquire the relationship between LS and the flood and flood vulnerability map of Jakarta based on LS. It is found that lands on the flooded area of 10.57 cm on the average, with a minimum and maximum of 5.25 cm and 22.5 cm, respectively. The greater the value of LS, inundation area also tend to widen, except in a few areas that have special conditions, such as reservoirs, river flow solution, water pump system and sluices. Accuracy of DInSAR result image is quite high, with the difference of 0.03 cm (0.18%) to 0.55 cm (3.37%) as compared to those from GPS measurements. These results can be recommended to the local government of Jakarta to minimize the potential risk of flood, as well as the subject of city planning for the future.
Observation of Center Disaster Damage on Pariaman and Wasior Using Differential Sar Interferometry (Dinsar) Sudiana, Dodi; Rizkinia, Mia
Makara Journal of Technology Vol. 16, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study focuses on disaster observations in Pariaman (West Sumatera) and Wasior (Papua) using remote sensing techniques (differential SAR interferometry). Differential interferometry (DInSAR) method was performed on two PALSAR data sets with different acquisition months, i.e. about a month after and before disaster, respectively. The center damage of Pariaman earthquake and Wasior flood can be determined by deriving Land Subsidence using DInSAR method.
Accuracy of Inhaler Use in COPD Patients and Factors Affecting It Indah Kusumawati Susanti; Rani Sauriasari; Anna Rozaliyani; Dodi Sudiana
Jurnal Respirologi Indonesia Vol 43, No 4 (2023)
Publisher : Perhimpunan Dokter Paru Indonesia (PDPI)/The Indonesian Society of Respirology (ISR)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36497/jri.v43i4.508

Abstract

Background: An inhaler is a type of dosage form used in the treatment of chronic obstructive pulmonary disease (COPD). The inhaler has a unique technique for use; however, the percentage of accuracy in inhaler use is still low. Proper inhaler use is expected to improve quality of life and decrease the occurrence of exacerbations. This study aimed to observe the percentage of accuracy in using inhalers and the factors that influence it.Method: This study was conducted with a cross-sectional design on COPD patients in two different hospitals. Primary data were collected using a questionnaire. The accuracy of inhaler use was assessed using a checklist.Results: The total number of patients in this study was 110, with an average age of 62 years. Patients were given single inhaler therapy, which included Dry Powder Inhalers (DPI) for 34 patients with 70.7% accuracy, Pressurized Metered-Dose Inhalers (pMDI) for 9 persons with 45.74% accuracy, and Soft Mist Inhalers (SMI) for one person with 66.67% accuracy. Furthermore, patients who used a combination of pMDI and DPI inhalers had an accuracy value of 68.53%, while a combination of pMDI and SMI had an accuracy value of 72.72%. The stage with the lowest level of accuracy in the pMDI-type inhaler used alone was exhaling before the inhaler was supplied.Conclusion:  According to the findings, the accuracy of inhaler use in COPD patients is still relatively low. Furthermore, gender is a factor that has a statistically significant relationship with inhaler accuracy.
Implementation of U-Net for Paddy Field Mapping Using Very High-Resolution Satellite Imagery Isbat, Faiz Khairul; Rizkinia, Mia; Sudiana, Dodi
International Journal of Electrical, Computer, and Biomedical Engineering Vol. 2 No. 3 (2024)
Publisher : Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62146/ijecbe.v2i3.57

Abstract

Mapping rice fields using remote sensing is one method that can be used to determine the number of rice fields, especially in Indonesia. Using this method can increase effectiveness in agricultural resource management. This research uses Pleiades optical satellite image data with very high resolution which is capable of displaying data information on a larger scale. The rice field classification model in this study uses U-net to classifier between rice fields and non-rice fields. The performance of applying this model for the classification of paddy fields and non-rice fields is 96%. These results show that the U-net model is capable of classifying small rice fields with high accuracy
Recommendations for a Framework for Handling Security Incidents of Electronic-Based Government Systems (SPBE) using the ISO/IEC 27035: 2023 Standard Prastowo, Stefanus Lugas; Sudiana, Dodi
JINAV: Journal of Information and Visualization Vol. 5 No. 1 (2024)
Publisher : PT Mattawang Mediatama Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.jinav2747

Abstract

The rapid development of Electronic Government Systems (EoBS) has brought significant improvements in the efficiency and accessibility of public services. However, the increasing reliance on these systems has also increased concerns about their security and the potential impact of security incidents on government operations and citizen trust. In order to address these challenges, this study proposes a framework for handling security incidents using the ISO/IEC 27035:2023 standard as a reference. The ISO/IEC 27035:2023 standard provides a comprehensive approach to incident management, covering the entire life cycle from preparation and identification to containment, eradication, and recovery. The recommended institution is the Ombudsman of the Republic of Indonesia, a government institution that carries out the function of overseeing the implementation of public services and receiving public complaints regarding alleged maladministration of public services. The preparation of the framework begins with a thorough analysis of the Ombudsman's existing security practices and potential threats to its electronic systems. This assessment is used as a basis for ensuring that the proposed solution is tailored to the specific needs and vulnerabilities of the institution. The stages carried out are preparation, identification, containment, eradication, recovery, and lessons learned. The recommendations produce a framework and insights that government agencies can use to adopt the ISO 27035:2023 standard. This study also shows that the implementation of the standard is relevant and in line with the SPBE policy in Indonesia.
Effectiveness and Efficiency of Regional Revenue And Expenditure Management In Kuningan Regency Sudiana, Dodi; Marpuah Jamilah, Erni; Arifin, Zaenal; Firmansyah, Iman; Siswoyo, Mukarto; Nursahidin, Nursahidin
Devotion : Journal of Research and Community Service Vol. 5 No. 8 (2024): Devotion: Journal of Community Research
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/devotion.v5i8.777

Abstract

The budget is a tool that encourages local government management to act economically, efficiently and effectively to achieve targeted goals. After the Covid-19 Pandemic, the Realization of Regional Revenue and Expenditure in Kuningan Regency every year has fluctuated, there has been a decrease and increase, especially in the period 2021 to 2023, even until there is a problem of payment delays. The government is an element in determining the direction of decision-making and determining the direction of government, so the government needs to implement good governance to create good governance, especially in the management of the APBD in order to realize the welfare of the community. The purpose of this study is to find out and analyze the effectiveness and efficiency of the Regional Revenue and Expenditure Budget of Kuningan Regency for the period of 2021 - 2023. The data was analyzed by a qualitative descriptive method with a phenomenological approach obtained values and indicators to measure the level of effectiveness and efficiency. The data sources used are primary and secondary data. The subject of this study is the measurement of regional revenue and expenditure performance, and the subject of this research is the variables for the implementation of the regional revenue and expenditure budget for 2021-2023. The results of the study show that (1) The development pattern of the level of effectiveness of the management of the Kuningan Regency APBD for the period of 2021 - 2023 tends to be stable. The results of the effectiveness analysis show that the average value of the effectiveness level of the management of the Kuningan Regency APBD for the 2021 - 2023 period of 93.53% is classified as Effective, and (2) The ability to manage the Kuningan Regency APBD for the 2021 - 2023 period is still inefficient, this is seen from the average value of the efficiency level of regional financial management which shows a result of 99.81% which is the criterion of Less Efficient.
MODIFIKASI DIGITAL ELEVATION MODEL (DEM) CITRA RESOLUSI TINGGI MENGGUNAKAN FUSI INTERFEROMETRI SAR DAN STEREOSAR BERBASIS FAKTOR PEMBOBOTAN Dyatmika, Haris S.; Arief, Rahmat; Sudiana, Dodi; Ali, Shadiq; Maulana, Rachmat; Budiono, Marendra Eko
Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Vol. 15 No. 2 (2018)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/inderaja.v15i2.3343

Abstract

SAR satellite sensors are capable to measure elevation of the earth surface using interferometry (InSAR) or radargrammetry (StereoSAR) methods. The InSAR method utilizes phase value from SAR images, while the StereoSAR uses amplitude value to produce elevation of the earth surface. Both methods have advantages and disadvantages on each own. Problems with low accuracy on DEM generated using InSAR occur on shadow and layover area, while in the second method (StereoSAR) the problem arise when cross correlation between the two images have low value. This paper proposes a technique to combine InSAR and StereoSAR methods to generate DEM using high resolution SAR images. A pair of TerraSAR-X or TanDEM-X images with a 21 degree incidence angle are used in this study and processed using the InSAR method and another pair of images at an angle of 21 degrees and 41 degrees using the StereoSAR method in Bandung and surrounding areas. The experimental results show that the fusion DEM of the two methods have better accuracy and decrease the absolute error both from InSAR and StereoSAR technique methods that separately around 3.48 m and 1.80 m.
Co-Authors Agus Santoso Tamsir Ali, Shadiq Anna Rozaliyani Arba’i Yusuf Dadang Gunawan Dyatmika, Haris S. Haris Suka Dyatmika Harry Sudibyo Imamul Muttakin Iman Firmansyah Indah Kusumawati Susanti Isbat, Faiz Khairul Marendra Eko Budiono Marendra Eko Budiono, Marendra Eko Marpuah Jamilah, Erni Mia Rizkinia Mukarto Siswoyo Muttaqin, Rofif Zainul Nur Afny Catur Andryani Nursahidin, Nursahidin Prastowo, Stefanus Lugas Rachmat Maulana Rachmat Maulana Rahmat Arief Rahmat Arief, Rahmat Rani Sauriasari Shadiq Ali Wahyu Widada Warsito P. Taruno Zaenal Arifin