Jurnal Rekayasa elektrika
The journal publishes original papers in the field of electrical, computer and informatics engineering which covers, but not limited to, the following scope: Electronics: Electronic Materials, Microelectronic System, Design and Implementation of Application Specific Integrated Circuits (ASIC), VLSI Design, System-on-a-Chip (SoC) and Electronic Instrumentation Using CAD Tools, digital signal & data Processing, , Biomedical Transducers and instrumentation, Medical Imaging Equipment and Techniques, Biomedical Imaging and Image Processing, Biomechanics and Rehabilitation Engineering, Biomaterials and Drug Delivery Systems; Electrical: Electrical Engineering Materials, Electric Power Generation, Transmission and Distribution, Power Electronics, Power Quality, Power Economic, FACTS, Renewable Energy, Electric Traction, Electromagnetic Compatibility, High Voltage Insulation Technologies, High Voltage Apparatuses, Lightning Detection and Protection, Power System Analysis, SCADA, Electrical Measurements; Telecommunication: Modulation and Signal Processing for Telecommunication, Information Theory and Coding, Antenna and Wave Propagation, Wireless and Mobile Communications, Radio Communication, Communication Electronics and Microwave, Radar Imaging, Distributed Platform, Communication Network and Systems, Telematics Services and Security Network; Control: Optimal, Robust and Adaptive Controls, Non Linear and Stochastic Controls, Modeling and Identification, Robotics, Image Based Control, Hybrid and Switching Control, Process Optimization and Scheduling, Control and Intelligent Systems, Artificial Intelligent and Expert System, Fuzzy Logic and Neural Network, Complex Adaptive Systems; Computer and Informatics: Computer Architecture, Parallel and Distributed Computer, Pervasive Computing, Computer Network, Embedded System, Human—Computer Interaction, Virtual/Augmented Reality, Computer Security, Software Engineering (Software: Lifecycle, Management, Engineering Process, Engineering Tools and Methods), Programming (Programming Methodology and Paradigm), Data Engineering (Data and Knowledge level Modeling, Information Management (DB) practices, Knowledge Based Management System, Knowledge Discovery in Data), Network Traffic Modeling, Performance Modeling, Dependable Computing, High Performance Computing, Computer Security, Human-Machine Interface, Stochastic Systems, Information Theory, Intelligent Systems, IT Governance, Networking Technology, Optical Communication Technology, Next Generation Media, Robotic Instrumentation, Information Search Engine, Multimedia Security, Computer Vision, Information Retrieval, Intelligent System, Distributed Computing System, Mobile Processing, Next Network Generation, Computer Network Security, Natural Language Processing, Business Process, Cognitive Systems. Signal and System: Detection, estimation and prediction for signals and systems, Pattern recognition and classification, Artificial intelligence and data analytics, Machine learning, Deep learning, Audio and speech signal processing, Image, video, and multimedia signal processing, Sensor signal processing, Biomedical signal processing and systems, Bio-inspired systems, Coding and compression, Cryptography, and information hiding
Articles
600 Documents
<![CDATA[Abnormal ECG Classification using Empirical Mode Decomposition and Entropy ]]>
<![CDATA[Suci Aulia]]>;
<![CDATA[Sugondo Hadiyoso]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 17, No 3 (2021) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v17i3.22070
<![CDATA[Heart disease is one of the leading causes of death in the world. Early detection followed by therapy is one of the efforts to reduce the mortality rate of this disease. One of the leading medical instruments for diagnosing heart disorders is the electrocardiogram (ECG). The shape of the ECG signal represents normal or abnormal heart conditions. Some of the most common heart defects are atrial fibrillation and left bundle branch block. Detection or classification can be difficult if performed visually. Therefore in this study, we propose a method for the automatic classification of ECG signals. This method generally consists of feature extraction and classification. The feature extraction used is based on information theory, namely Fuzzy entropy and Shannon entropy, which is calculated on the decomposed signal. The simulated ECG signals are of three types: normal sinus rhythm, atrial fibrillation, and left bundle branch block. Support vector machine and k-Nearest Neighbor algorithms were employed for the validation performance of the proposed method. From the test results obtained, the highest accuracy is 81.1%. With specificity and sensitivity of 79.4% and 89.8%, respectively. It is hoped that this proposed method can be further developed to assist clinical diagnosis.]]>
<![CDATA[Desain Low-Cost Sistem Monitoring Pengukuran Potensi Tenaga Matahari dan Tenaga Angin ]]>
<![CDATA[Aries Jehan Tamamy]]>;
<![CDATA[Zaenal Arifin]]>;
<![CDATA[Amalia Amalia]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 15, No 1 (2019) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v15i1.12077
<![CDATA[Renewable energy implementation could become the alternative for electrical energy supply in a remote area with no network for electricity and also could be implemented in an urban area to reduce electricity consumption in daily usage. One of the problems to implement renewable energy is how to measure solar power potential and wind power potential to decide the qualification to apply the system in a particular area. This research used Arduino Uno as the main Controller that connected to a Voltage sensor, Current Sensor ACS712 30A dan light intensity sensor BH1750 to measure solar power potential and also anemometer to measure wind power potential. Software design was done using Arduino IDE program that successfully produced stable Low-Cost system that can operate well with all kind of solar panel with maximum Voltage of 34.7 V and current ± 30 A. The results from system testing shows that the system has accuracy for voltage sensor with value of 99.2%, current sensor with value of 95.3% and light intensity sensor with value of 99.8% and also has excellent precision with SDR value for every sensor are 0.034%, 4.58% and 0.026%.]]>
<![CDATA[Sistem Akuisisi Data Multiplatform Berbasis PC dengan Tampilan Hasil di Twitter ]]>
<![CDATA[Arief Hendra Saptadi]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 11, No 5 (2015) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v11i5.2749
<![CDATA[Computer or Personal Computer (PC) based data acquisition system had enabled the measurement of physical parameters, not only to display and store them in the computer but also to send them to a website. Twitter as one of web services for social media that provides the facility to display 140-character length of text status has been deemed sufficient for the purpose of displaying the latest data and is accessible through available Application Programming Interface (API). The purpose of this research is to design a PC-based data acquisition system which is capable to conduct measurement, storage and transmission of data to the web service via Twitter API. The proposed system was consisted of LM35 temperature sensor to measure room temperature, Arduino Nano microcontroller and a data acquisition application in PC to display and store data in a Comma-Separated Values (CSV) file. Based on test results for processes involving Analog to Digital Converter (ADC), the obtained error is 3.71% for voltage value and the average difference between measured values and displayed ones is 0.01 V. Average error for temperature measurement is 5.13% and the difference between measured values and the displayed ones is 1.34°C. Built application had produced an adequate display of interface and fulfilled all required functionalities. Average response time of Twitter API to Choreo is 0.18 s while average time to transmit data from application to Twitter is 2.15 s or 11.75 times longer. In later development, LM35 should be replaced with a more precise sensor. The occurrence of randomness in measurement results could be minimized by adding an active filter circuit between sensor and microcontroller.]]>
<![CDATA[Konsep dan Kinerja dari Sistem Hybrid OCDMA/WDM untuk Local Area Network ]]>
<![CDATA[Nasaruddin Nasaruddin]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 9, No 4 (2011) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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<![CDATA[Peningkatan kapasitas, distribusi bandwidth dan daya merupakan beberapa isu penting untuk aplikasi local area network (LAN). Saat ini, teknologi fiber optik sudah dapat mendukung jaringan akses dengan kecepatan tinggi untuk layanan multimedia diantaranya teknologi OCDMA dan WDM. Penambahan kapasitas transmisi LAN bisa dilakukan dengan penggabungan sistem transmisi OCDMA dengan WDM. Untuk itu, paper ini mengusulkan konsep dan kinerja dari sistem hybrid OCDMA/WDM. Sistem hybrid OCDMA/WDM ini bertujuan untuk meningkatkan bandwidth dan kemampuan akses serta tingkat keamanan yang tinggi untuk LAN. Selanjutnya kinerja dari sistem OCDMA/WDM dibahas secara teoritis. Kemudian pembuatan simulasi numerik dilakukan untuk mendapatkan karakteristik kinerja sistem hybrid OCDMA/WDM. Hasil simulasi numerik untuk kinerja OCDMA/WDM dibandingkan dengan kinerja OCDMA dan WDM. Dari perbandingan tersebut didapatkan bahwa kinerja OCDMA/WDM lebih baik dibandingkan dengan kinerja OCDMA atau WDM.]]>
<![CDATA[Measurement of Ankle Brachial Index with Oscillometric Method for Early Detection of Peripheral Artery Disease ]]>
<![CDATA[Ervin Masita Dewi]]>;
<![CDATA[Gema Ramadhan]]>;
<![CDATA[Robinsar Parlindungan]]>;
<![CDATA[Lenny Iryani]]>;
<![CDATA[Trisno Yuwono]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 18, No 2 (2022) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v18i2.25758
<![CDATA[Peripheral Arterial Disease (PAD) is a blood vessel disease caused by blockage or plaque accumulation around the artery walls. PAD is included in the category of diseases that are often diagnosed too late and affect more severe cases, such as the death of certain tissues or body parts. The Ankle Brachial Index (ABI) is an accurate non-invasive method for diagnosing PAD, in practice, ABI is usually performed in certain hospitals and is still difficult to find due to limited tools. Therefore, a tool is made that can detect the condition of a person's PAD based on the ABI value. The tool is made using two MPX5050GP sensors to detect oscillometric pulses, a DC pump and solenoid valve as an actuator to pump and deflate the cuff, ADS1115 as an external ADC to increase the accuracy of sensor readings, as well as an LCD and buzzer as tool indicators. The output is displayed in the form of a print out from a thermal printer, with an emergency stop that functions as a safety system to power off the supply when a failure occurs in the measurement process. Oscillometric method is used to detect systolic and diastolic pressure. The accuracy of the tool is 95.5%. This accuracy result is obtained by comparing the readings of systolic and diastolic values using a sphygmomanometer which is commonly used.]]>
<![CDATA[Autonomous Underwater Vehicle untuk Survei dan Pemantauan Laut ]]>
<![CDATA[Henry M. Manik]]>;
<![CDATA[Agung D. Syakti]]>;
<![CDATA[Jales Veva Jaya]]>;
<![CDATA[Dony Apdillah]]>;
<![CDATA[Steven Solikin]]>;
<![CDATA[Angga Dwinovantyo]]>;
<![CDATA[Rina Fajaryanti]]>;
<![CDATA[Bagas O. Siahaan]]>;
<![CDATA[Muhammad Sanubari]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 13, No 1 (2017) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v13i1.5964
<![CDATA[AUV is an unmanned submersible platform to accomplish a mission. Side-scan sonar, Conductivity Temperature Depth (CTD), and underwater video camera are usually attached on AUV. These sensors were used for identifying seawater and seabed condition. Data acquired from a survey with an AUV in Kepulauan Riau processed by Neptus software. Side-scan sonar (SSS) visualization is compared to the video image. SSS signal visualization has a unique pattern that can be identified within the video image. Different substrate structure caused different signal visualization. The relation between the video image and SSS visualization can be used for identifying habitat benthic profile.]]>
<![CDATA[Pengaturan Pemakaian Bandwidth Menggunakan Mikrotik Bridge ]]>
<![CDATA[Afdhal Afdhal]]>;
<![CDATA[Taufiq A. Gani]]>;
<![CDATA[Haimi Ardiansyah]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 9, No 2 (2010) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v9i2.177
<![CDATA[Permasalahan dalam sebuah jaringan komputeradalah proses pengiriman data lambat, rusak dan tidaksampai ke tujuan. Permasalahan ini diakibatkan belumadanya manajemen penggunaan bandwidth. Permasalahanini sering diselesaikan dengan melakukan perbaikan dan re-konfigurasi jaringan dari awal serta membuat penggunaanbandwidth yang lebih teratur. Namun, pada jaringan yangsudah kompleks, re-konfigurasi dari awal bukan hal mudahdan memakan waktu lama serta menghabiskan banyakbiaya. Oleh karena itu, sebuah jaringan memerlukanmanajemen pemakaian bandwidth yang baik, sehinggadapat mengatur lalu-lintas data tepat sasaran dalam waktucepat dan efisien, tanpa mere-konfigurasi jaringan dari awal.Dalam penelitian ini peneliti membuat desain topologimenggunakan Mikrotik sebagai bridge denganmenempatkannya antara server dengan client untukmenjembatani proses pertukaran data. Desain ini dibuatuntuk membandingkan pemakaian bandwidth pada jaringanyang menggunakan Mikrotik dengan jaringan tanpaMikrotik. Penelitian ini bertujuan untuk meneliti pengaruhpenggunaan Mikrotik Bridge terhadap manajemenpemakaian bandwidth dengan melakukan analisa terhadapbesar pemakaian bandwidth yang diterima client danmembuat perbandingan grafis berdasarkan hasil hitunganstandar deviasi. Dari hasil penelitian dapat diketahui bahwapenempatan Mikrotik Bridge dapat mengatur pemakaianbandwidth, sehingga pertukaran data menjadi lebih baik danpemakaian bandwidth dapat lebih optimal, tanpa mengubahkonfigurasi jaringan sebelumnya.]]>
<![CDATA[Aplikasi Low Pass RC Filter Untuk Mengurangi Harmonisa Pada Lampu Hemat Energi ]]>
<![CDATA[Wahri Sunanda]]>;
<![CDATA[Rika Favoria Gusa]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 10, No 1 (2012) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v10i1.144
<![CDATA[Voltage and current harmonics produced by nonlinear loads which reduce electrical power quality and energy saving lamp is one of example of it. This research was done by performing studies in harmonic voltage and harmonic current from four different brands of energy saving lamp having power rating of 8 watt, 16 watt, and 20 watt and uses IEEE Standard of 519-1992 as a reference in determining maximum limitation voltage and current harmonics. The result of the tests were showed that total harmonic distortion (THD) voltage at each different brand of energy saving lamp having power rating of 8 watt, 16 watt, and 20 watt did not exceed the IEEE 519-1992 maximum limitation of 5%. While total harmonic distortion (THD) current at each different brand of energy saving lamp having power rating of 8 watt, 16 watt, and 20 watt had exceed result range exceeding 71,2%. After using low pass RC filter as passive electronic circuit, the total harmonic distortion (THD) current was obtained for each different brand of energy saving lamp having power rating of 8 watt, 16 watt, and 20 watt, it was showed that the range of total harmonic distortion (THD) current under 14,262%.]]>
<![CDATA[Rancang Bangun Sistem Multipoint Transmitter – Receiver untuk Inspeksi Bawah Air Berbasis Ultrasonik Frekuensi Rendah ]]>
<![CDATA[Muhammad Edy Hidayat]]>;
<![CDATA[Agus Indra Gunawan]]>;
<![CDATA[Tri Budi Santoso]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 16, No 3 (2020) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v16i3.17512
<![CDATA[Non-destructive testing and evaluation are testing techniques that test and evaluate the properties of a material, component, or system without causing any damage caused by the testing and evaluation process. Ultrasonic sensors are devices with minimal risk in their use and are quite often used in non-destructive testing and evaluation processes. Low frequency ultrasonic (200kHz) has been used in the testing and evaluation process in several scientific fields. Improving the test capability of low-frequency ultrasonic measurement instruments while remaining efficient and affordable is the core of this research. Increasing test capability and efficiency by adding five test points to a low-frequency ultrasonic measurement instrument for underwater inspections have been carried out by engineering a trigger signal generator that transmits 35kHz signals at 50V voltage proven to improve the quality of the echo signal received when compared to using trigger signal sourced directly from the wave generator device, the use of a pre-amplifier module on the receiver side of the echo signal is proven to be able to increase the voltage level of the echo signal and improve the reading value of the received echo signal, as well as the signal coupling mechanism built in this study, proved to be adequate to increase efficiency multipoint testing using one ultrasonicbased testing instrument.]]>
