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All Journal International Journal of Electrical and Computer Engineering Transmisi: Jurnal Ilmiah Teknik Elektro SOSIALITAS (Jurnal Ilmiah Pend. Sos-Ant) TRANSIENT: Jurnal Ilmiah Teknik Elektro TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Sinergi Jurnal Teknologi Informasi dan Ilmu Komputer ATAVISME JURNAL ILMIAH KAJIAN SASTRA Proceeding of the Electrical Engineering Computer Science and Informatics Jurnal Teknologi dan Sistem Komputer JURNAL BAHASA, SASTRA DAN PEMBELAJARANNYA Diglosia: Jurnal Kajian Bahasa, Sastra, dan Pengajarannya TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol LOYALITAS: Jurnal Pengabdian Kepada Masyarakat Buletin Ilmiah Sarjana Teknik Elektro Mobile and Forensics Jurnal Informasi dan Teknologi Journal La Sociale Jurnal Abdimas Bina Bangsa Jurnal Nasional Teknik Elektro dan Teknologi Informasi Journal of Digital Learning and Distance Education Journal of Educational Sciences Indonesian Journal of Islamic Economics and Finance Journal of Social Commerce Innovative: Journal Of Social Science Research West Science Accounting and Finance

Teguh Prakoso

Departemen Teknik Elektro, Universitas Diponegoro, Semarang Jl. Prof. Sudharto, SH, Kampus UNDIP Tembalang, Semarang 50275, Indonesia

Author-ID : 344213

Religion Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Neuroscience Public Health Social Sciences Other

Published : 68 Documents Claim Missing Document

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Articles

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Graphical Approach for RF Amplifier Specification in Radio over Fiber System: Maximum Power Issues Teguh Prakoso; Munawar Agus Riyadi; Razali Ngah
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 4: EECSI 2017
Publisher : IAES Indonesia Section

Radio-over-fiber (RoF) technologies address wireless communication’s need for high data rate, protocol- transparency, and flexibility. One of challenge in RoF access point design is RF amplifier requirement that match to microwave-photonic link chosen and service range needed. This paper proposes a graphical approach as systematic method to solve the challenge. The method identifies two regions, i.e. (a) scalable region where amplifiers’ output 1-dB compression point (OP1dB) improvement can enhance system’s maximum input and output power, and (b) saturation region where any improvement on amplifiers’ OP1dB cannot improve AP’s maximum input and output power. The methods have been verified by system simulations. The errors at scalable and saturation regions are less than 1 dB and the standard deviation is no more than 0.6 dB. The error values around the breakpoint between scalable and saturation regions are around 1 dB. Therefore, the proposed graphical approach can be used in the specification tradeoff between RoF access point input and output power, amplifier’s gain and OP1dB.

Design-of-Experiment Based Systematic Tuning of Square Open Loop Resonator Teguh Prakoso; Imam Santoso; Munawar Riyadi
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 6: EECSI 2019
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eecsi.v6.1948

Stub-loaded, square open loop resonator (SOLR) is a type of bandpass filter with dual-band response. It is believed that its center frequency values are determined by entire length of open loop resonator’s and open stub's lengths, the bandwidth values are determined by coupling between two resonators. However, design of experiments (DOE) method applied in this paper shows that the center frequency values are also affected by interaction between resonator length, stub length, and distance between the two resonators in pair. The DOE also shows that bandwidth values, both upper and lower bands, are not only affected by the distance between resonators but also by the resonator’s and stub’s lengths. Utilizing slope values of the significant factors, systematic tuning to SOLR can be done. With few steps, small error on frequency responses can be obtained.

Design of Integrated Bioimpedance Analysis and Body Mass Index for Users with Special Needs Ganjar Winasis; Munawar Riyadi; Teguh Prakoso
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 7, No 1: EECSI 2020
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eecsi.v7.2057

This research was conducted with the aim to build integration between Bioimpedance Analysis (BIA) and Body Mass Index (BMI) for users with special needs. The proposed system can measure height, weight, BMI and body composition simultaneously to be used by the elderly population and handicapped users. The proposed system is developed as a chair equipped with several system blocks, namely BIA block, BMI block, power supply block, and microcontroller block. Before starting the measurement, users only need to enter their age and gender data. The whole system is controlled by using Arduino Mega 2560 on the microcontroller block equipped with keypad for data input and an LCD to display measurement results. System testing is performed by comparing the measurement results with Omron HBF-375. The test involved 8 volunteers (4 males and 4 females). The test results show that the integrated BIA-BMI works well with an average error of 1.5%.

ROTATED RECTANGULAR SLOTS AND MIRRORED INVERSED CANTOR-SETS ON ULTRAWIDEBAND ANTIPODAL VIVALDI ANTENNA Sabri Alimi; Teguh Prakoso; Munawar Agus Riyadi
SINERGI Vol 23, No 2 (2019)
Publisher : Universitas Mercu Buana

Variants of antipodal Vivaldi antenna (AVA) design suitable for access point working on 0.5 – 6.0 GHz are proposed in this paper. The novel designs were produced by employing three novel techniques to conventional AVA: (i) rotated-slot pattern to shift down the frequency cutoff and enhancing bandwidth, (ii) curve design to miniaturize rotated-slot-inserted antipodal Vivaldi, and (iii) fractal-director (Cantor set) to increase the gain of antipodal Vivaldi. Using FR4 (relative permittivity of 4.4) with an overall dimension of 300 mm x 143 mm x 1.6 mm the antenna designs are able to work at a frequency of 0.472 GHz to higher than 6 GHz with a maximum gain of 11.9 dBi.

Classification of motor imagery brain wave for bionic hand movement using multilayer perceptron Sapto Budi Priyatno; Teguh Prakoso; Munawar Agus Riyadi
SINERGI Vol 26, No 1 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2022.1.008

Physical disability due to amputation can affect a person's quality of life due to limited movement in performing daily activities. Bionic hands are used to help someone with an amputation disability. This research developed a bionic hand control based on electroencephalography sensors capable of measuring the brain's bioelectric activity. The classified brain wave was then translated as activity pattern information. The alpha & beta waves were the focus of this work. This study demonstrated a method to extract and classify motor imagery of brainwave activity patterns. The Fast Fourier Transform (FFT) method extracts motor imagery characteristics. The extraction of features is then classified by the Multilayer Perceptron (MLP) method for five classes of bionic hand movement. Testing was conducted with two scenarios. The first test motor imagery without additional movement showed an accuracy of 77.20 %, while the second test motor imagery combined with head movement showed an accuracy of 84.40% for five classes. The system based on motor imagery has been implemented in a bionic hand that shows the applicability of the proposed method.

PID Parameters Auto-Tuning on GPS-based Antenna Tracker Control using Fuzzy Logic Ahmad Riyandi; Sumardi Sumardi; Teguh Prakoso
Jurnal Teknologi dan Sistem Komputer Volume 6, Issue 3, Year 2018 (July 2018)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

The moving vehicles require an antenna to communicate which is placed on the vehicles and at the ground station (ground control station, GCS). Generally, GCS uses a directional antenna equipped with the drive system with the conventional proportional, proportional-integral, or proportional-integral-derivative (PID) control, and step-tracking algorithms based on the received signal strength indicator (RSSI). This research used PID control method tuned with fuzzy logic based on Global Positioning System (GPS) to control a directional antenna at GCS. The resulting antenna tracker system was capable of tracking objects with a minimal error of 0° at azimuth and elevation angle and had a maximal error of 49° for a 49 km/hour speed object. The system had an average rise time of 0.7 seconds at an azimuth angle and 1.08 seconds at an elevation angle. This system can be used to control antenna direction for moving vehicles, such as an unmanned aerial vehicle (UAV) and rocket.

Rancang Bangun Bioelectrical Impedance Analysis (BIA) Multifrekuensi berbasis ARM Afin M Nurtsani; Baron Murianda; Teguh Prakoso; Yuli Christyono; Munawar Agus Riyadi
TELKA - Jurnal Telekomunikasi, Elektronika, Komputasi dan Kontrol Vol 5, No 2 (2019): TELKA
Publisher : Jurusan Teknik Elektro UIN Sunan Gunung Djati Bandung

Timbangan badan biasa tidak dapat membedakan antara massa lemak dan massa non lemak. Oleh karena itu, dibutuhkan suatu alat pengukuran yang mampu membedakan massa lemak dan massa non lemak. Untuk mengetahui komposisi tubuh, digunakan metode Bioelectrical Impedance Analysis (BIA) yang memiliki keunggulan yaitu murah, mudah, dan portable. Penggunaan frekuensi yang berbeda pada BIA memberi kelebihan pada kemampuan segmentasi. Untuk itu, pada penelitian ini, dilakukan rancang bangun BIA yang bekerja pada beberapa frekuensi berbeda, yaitu Multi Frequency Bioelectrical Impedance Analysis (MFBIA). Sistem pengolahan sinyal BIA dirancang berbasis ARMSTM32F103C8T6. Hasil penelitian menunjukkan bahwa sistem pengolah sinyal dapat menghasilkan data persentase lemak tubuh. Galat relatif dari sistem pengolah sinyal sebesar 9,926% pada metode Hand-to-Hand, dibandingkan terhadap alat pembanding komersial sejenis.

Komunikasi M2M Kognitif Berbasis PRMA dengan Multi Ultra Frame dan Payload Exchange Eko Arifianto; Aghus Sofwan; Teguh Prakoso
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 8 No 4: November 2019
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1397.064 KB)

M2M communication is the process of exchanging data between devices on a network of capillary systems. The communication channel used is an empty space on a TV channel with a cognitive radio mechanism combined PRMA with a fixed and periodic scheme. The scheme has a working system that allows PRMA to place data in the same free space, which causes collisions. Therefore, it needs repetition, which requires more energy and causes inefficient communication. Thus, a Multi Ultra Frame (MUF) and Payload Exchange (PE) data exchange scheme is proposed to reduce collisions and repetition by giving grades and features to the data, with the aim to achieve optimal use of empty space. An indication of efficient communication is the optimal use of empty space, which affects the throughput (PT), duty cycle (Cyl), and interference ratio (fo). The higher PT and the lower Cyl and fo, the more efficient the communication. MUF and PE schemes produce PT of 99-41%, Cyl of 1-4.4%, and fo of 10-33%. Fixed and periodic schemes produce PTof 81-21%, Cyl of 2-9%, andfo of 15-52%. Optimization of MUF and PE schemes producePTof 99-70%, Cyl of 0.5-2.2%, and fo of 8-14%. Optimization of fixed and periodic schemes produce PTof 66-35%, Cyl of 3-6%, and fo of 19-28%.

PERANCANGAN KOMUNIKASI INTRA CLUSTER ANTARA NODE SENSOR DENGAN CLUSTER HEAD MENGGUNAKAN PERUTEAAN LEACH Apriliani Nabila Anjani; Imam Santoso; Teguh Prakoso
Transient: Jurnal Ilmiah Teknik Elektro TRANSIENT, VOL. 10, NO. 4, DESEMBER 2021
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/transient.v10i4.709-717

Saat ini pemantauan tanaman hidroponik Kelompok Tani (Poktan) Dahlia dilakukan secara langsung mengikuti jadwal piket mingguan. Saat faktor lingkungan suhu dan kelembaban pada area tanaman hidroponik tidak berada pada range normalnya petani yang tidak mengetahui hal tersebut dapat terlambat mengambil tindakan. Hal ini akan berakibat tanaman mati dan merugikan kelompok tani. Jaringan Sensor Nirkabel atau JSN merupakan suatu jaringan yang terdiri dari sekumpulan node sensor yang tersebar pada suatu area target. Komunikasi intra cluster terdiri dari node sensor yang memiliki kemampuan untuk megumpulkan data besaran fisik pada lingkungan, memproses dan mengirimkannya hingga sampai ke pengguna. Node sensor umumnya berukuran kecil dan memakai catu daya berupa baterai sehingga memiliki energi yang terbatas Pemilihan rute pengiriman data dengan algoritma LEACH (Low Energy Adaptive Clustering Hierarchy) dapat membantu mengatasi masalah tersebut. Berdasarkan hasil analisis pada simulasi dengan menggunakan algoritma LEACH dapat mencapai round yang lebih lama yaitu 3455 round. Pada implementasi node sensor mampu melakukan penginderaan suhu dan kelembaban lingkungan. Arus yang dikonsumsi setiap node cukup seimbang dan mampu bertahan lebih lama. Kemudian selain pemilihan rute diterapkan juga mode deep sleep pada hardware untuk penjadwalan pengiriman. Mode deep dapat mengurangi rata-rata konsumsi arus pada node sensor 47,31% dan memperpanjang masa hidup rata-rata node sensor sebesar 89,14%. Perancangan komunikasi intra cluster antar node sensor dapat melakukan fungsinya mengumpulkan data suhu kelembaban lingkungan dan meggunakan algoritma LEACH serta penjadwalan mode deep sleep dapat mengurangi konsumsi arus dan memperpanjang masa hidup JSN untuk pemantauan suhu dan kelembaban tanaman hidroponik Poktan Dahlia.

PERANCANGAN KOMUNIKASI INTER CLUSTER ANTARA CLUSTER HEAD DENGAN GATEWAY (NODE SINK) MENGGUNAKAN PERUTEAN LEACH Muthia Nur Fajrina; Imam Santoso; Teguh Prakoso
Transient: Jurnal Ilmiah Teknik Elektro TRANSIENT, VOL. 10, NO. 4, DESEMBER 2021
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/transient.v10i4.718-724

Hidroponik adalah cara bercocok tanam dengan memanfaatkan air dan tanpa menggunakan tanah. Faktor-faktor yang mempengaruhi pertumbuhan hidroponik salah satunya adalah kondisi lingkungan yaitu suhu dan kelembaban. Akan tetapi pemantauan suhu dan kelembaban masih dilakukan secara manual. Oleh karena itu diperlukan suatu teknologi untuk memudahkan pemantauan. JSN atau Jaringan Sensor Nirkabel sebuah kumpulan node yang dapat berupa sensor yang akan melakukan pengambilan data dan mengirimkan informasi tersebut ke node sentral atau sebuah server. Isu utama yang masih menjadi permasalahan yaitu efisiensi energi pada JSN. Konsumsi energi pada jaringan menjadi hal yang penting agar dapat meningkatkan waktu hidup jaringan. LEACH (Low Energy Adaptive Cluster Hierarchy) adalah salah satu metode perutean model hierarki dalam JSN yang paling baik dalam hal efisiensi energi. Selain menerapkan perutean, untuk mengurangi konsumsi energi dan kemungkinan overheating, diterapkan juga sleep-wake up scheduling. Penerapan mode deep sleep dapat meminimalkan konsumsi energi pada perangkat keras sehingga masa hidup jaringan bisa bertahan lebih lama. Pada implementasi perangkat keras menggunakan LEACH dan penerapan penjadwalan pengiriman, arus yang dikonsumsi cluster head dan gateway lebih kecil. Penerapan mode deep sleep pada perangkat keras berhasil meningkatkan masa hidup cluster head hingga 83,17% dan gateway hingga 30,59%. Hasil pengujian keseluruhan sistem menunjukkan bahwa seluruh perangkat keras dapat berjalan dengan baik, sistem dapat mengirimkan data hingga jarak 30 meter dan sistem dapat mengeluarkan output berupa hasil pembacaaan nilai suhu dan kelembaban dengan rata-rata error secara keseluruhan untuk pembacaan suhu sebesar 3,54% dan kelembaban sebesar 7,7%.

Co-Authors Abdul Hamid Alfauzi Achmad Hidayatno Adhi Nugraha Affandi, Muhammad Afif Afin M Nurtsani Aghus Sofwan Agnes Yora Gracia Simatupang Ahmad Riyandi Ahmad Zaki Mubarok, Ahmad Zaki Akbar Satria Wardhana, Akbar Satria Alfian Rokhmansyah Ananda, Refisa Andreansyah, Muhammad Iqbal Apriani, Zuliana Apriliani Nabila Anjani Apriliani, Rina Ardhian Ainul Yaqin Arif Munandar Arifianto, Eko arjang Badriyah, Ratu Baron Murianda Brilian Dermawan Brillianing Pratiwi Damayanti, Denti Agustina Darjat Darjat Dewi, Arkidianabela Anggara Donny Dharmawan Dwi Budi Srisulistiowati E. H. Hadyan E.H. Hadyan E.H. Hadyan, E.H. Hadyan Eko Arifianto Eko Arifianto Enang Rusyana Enggar Hindami Hadyan Erasma, Erasma Fitra Jaya Hadyan, E. H. Halim, Indra Hanardi Satrio Hari Kurnia Safitri Heriani Heriani, Heriani Houtman Ian Amri Dinina Ibrahim Ibrahim Ifki Arifatul Utami Irawan D Sukawati Irawan Dharma Sukawati, Irawan Dharma Jatmiko E. Suseno Jatmiko E. Suseno Khoerul Fajri Lase, Sepandil Laras Liya Yusrina Sabila M. A. Riyadi M. Noor, N Shazwani M.A. Riyadi M.A. Riyadi, M.A. Riyadi Maulina, Murni Memet CASMAT Mertua Agung Durya, Ngurah Pandji Mochammad Facta Mohamad Yunus, Mohamad Muhamad Ridwan Fauzi, Muhamad Ridwan Mujib, Khusnil Munawar A Riyadi Munawar Agus Riyadi Murianti, Diana Mustari Mustari Muthia Nur Fajrina Muthouwali, Achmad Ngaqib N Shazwani M. Noor N. Shazwani M. Noor, N. Shazwani natanael pandapotan, natanael Ngah, Razali Ngah, Razali Nicholas Audric Adriel Nilawati Nilawati Novita Sari Harianja Nursantoso, Teguh Oktavianto, Tedi Permanasari, Devi Rachmani, Ferlinda Ainur Rahma Dewi Hartati Razali Ngah Razali Ngah Razali Ngah Riyadi, M. A. Riyadi, Munawar Riyadi, Munawar Riyadi, Munawar A. Riyandi, Ahmad Rovandi, Harris Rustaman, Dede Sabila, Liya Yusrina Santoso, Imam Santoso, Muhammad Hery Sapto Budi Priyatno Setiawan, Budhy Siti Aisyah Siti Hadianti, Siti Sofwan, Aghus Soleh, Soleh Stefani Dian Hutami Sudarmanto, Eko Sukiswo Sukiswo Sukiswo Sukiswo Sumardi . Suseno, Jatmiko E. Syafruddin Syuja Rizqullah Tanzila Azizi Rochim Tharek A. Rahman Ucu Rahayu Uli Wildan Nuryanto Utiarahman, Nurnaningsih Venus Khasanah Victor Pattiasina Winasis, Ganjar Yohandri Natan Yuli Christyono Yuli Christyono Yuliana, Rachma Yulistina Yulistina

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