Article Per Year (5 Year)
p-Index From 2020 - 2025
2.338
P-Index
This Author published in this journals
All Journal Jurnal Ilmiah Giga JMM (Jurnal Masyarakat Mandiri) Indonesian Journal of Electrical Engineering and Computer Science
Ruliyanta Ruliyanta
Program Studi Teknik Elektro Universitas Nasional, Jakarta 12520
Education Other

Published : 15 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 8 Documents
Search
Journal : Jurnal Ilmiah Giga

 1 
Simulasi Channel Coding Pada Sistem DVB-C (Digital Video Broadcasting-Cable) dengan Kode Reed Solomon Ruliyanto Ruliyanto; Idris Kusuma
Jurnal Ilmiah Giga Vol 19, No 2 (2016): Volume 19 Edisi 2 Tahun 2016
Publisher : Universitas Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (143.141 KB) | DOI: 10.47313/jig.v19i2.564

Abstract

Digital Video Broadcasting (DVB) adalah salah satu sistem yang digunakanuntuk mentransmisikan siaran TV digital hingga ke end-user. Dengan teknologi digital,DVB dapat memanfaatkan penggunaan bandwidth secara lebih efisien. Salah satunyaadalah DVB-C (Digital Video Broadcasting-cable). Dalam simulasi ini membandingkanperforma antara sistem DVB-C (Digital Video Broadcasting-Cable) tanpa Reed Solomondengan DVB-C (Digital Video Broadcasting-Cable) yang menggunakan metode ReedSolomon. Hasil penelitian menunjukkan bahwa Reed Solomon mampu memperbaikikinerja sistem.
Simulasi Dan Analisa Efek Doppler Terhadap OFDM Dan MC-CDMA Ruliyanto Ruliyanto; Rianto Nugroho
Jurnal Ilmiah Giga Vol 18, No 1 (2015): Volume 18 Edisi 1 Tahun 2015
Publisher : Universitas Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (339.019 KB) | DOI: 10.47313/jig.v18i1.570

Abstract

Pada penelitian ini dilakukan Simulasi dan Analisa efek Doppler terhadapOFDM dan Multi carrier CDMA yang menggunakan frekuensi carrier 900 MHz dan 1800MHz pada kanal AWGN dengan maksud untuk menghitung pengaruh doppler pada BER (BitError Rate) pada kecepatan doppler 20 m/s atas penerimaan OFDM dan MC-CDMA.Simulasi dan Analisa ini menggunakan piranti lunak Javascript untuk mendapatkanperbandingan jumlah kesalahan bit (Bit Error Rate) pada OFDM dan MC-CDMA. Dari hasilsimulasi dengan menggunakan 2 jenis frekuensi carrier yang berbeda serta menggunakan Eb/ No dari 1 dB hingga 20 dB maka BER pada MC-CDMA lebih bagus dari OFDM. Hal initerlihat dari hasil BER yang dihasilkan, misalnya pada nilai Eb / No = 12 dB dengan frekuensicarrier 1800 MHz, maka untuk OFDM memiliki nilai BER = 0.0159 sedangkan pada MCCDMAmemiliki BER = 0.0006.
Pengaruh Ketidakseimbangan Beban Terhadap Arus Netral dan Arus Ground pada Trafo 1 dan Trafo 2 pada Beban Puncak Sesaat Ruliyanto Ruliyanto
Jurnal Ilmiah Giga Vol 23, No 1 (2020): Volume 23 Edisi 1 Tahun 2020
Publisher : Universitas Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47313/jig.v23i1.867

Abstract

Transformator atau trafo adalah salah satu komponen utama peralatan gedung untuk menurunkan tegangan sesuai dengan kebutuhan. Permasalahan yang sering dijumpai adalah masalah ketidakseimbangan beban. Umumnya penyebab ketidakseimbangan adalah pada beban-beban satu fasa pada jaringan. Akibat ketidakseimbangan beban tersebut munculah arus di netral trafo. Arus yang mengalir di netral trafo ini menyebabkan terjadinya losses (rugi-rugi), yaitu losses akibat adanya arus netral pada penghantar netral trafo dan losses akibat arus netral yang mengalir ke ground. Setelah dianalisis, terjadi ketidakseimbangan beban pada Trafo 1 sebesar 5.23%, akan berakibat muncul arus netral IN sebesar 300 ampere, dan losses akibat arus netral IG yang mengalir ke tanah sebesar 0.15%. Kapasitas daya yang terpakai saat ini sebesar 84.65%.
Forecast of COVID-19 Cases in Indonesia with the Triple Exponential Smoothing Algorithm Ruliyanta Ruliyanta; Endang Retno Nugroho
Jurnal Ilmiah Giga Vol 23, No 2 (2020): Volume 23 Edisi 2 Tahun 2020
Publisher : Universitas Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47313/jig.v23i2.933

Abstract

The Coronavirus (SARS-CoV-2), also known as COVID-19, has brought a worldwide threat to the living. The whole world is making extraordinary efforts to combat the spread of this deadly disease in terms of infrastructure, finances, data sources, protective equipment, life risk treatment, and several other resources. Artificial intelligence researchers focus their knowledge of expertise on developing mathematical models to analyze this epidemic situation using shared national data. To contribute to the welfare of the living community, this article proposes to utilize the Triple Exponential Smoothing algorithm to predict the development of COVID-19 throughout the country by utilizing real-time information from the Task Force for the Acceleration of Handling of Coronavirus Disease 2019 in Indonesia. Based on forecasting results, in Indonesia by the end of 2020, COVID-19 will continue to grow significantly, the number of confirmed COVID-19 people is 386,571 people with a death toll of 15,622.
Rancang Bangun Antena Mikrostrip Pattch Rectangular Array 4x1 pada Frekuensi 1800 MHz-2300 MHz Ruliyanta Ruliyanta; Endang Retno Nugroho
Jurnal Ilmiah Giga Vol 24, No 1 (2021): Volume 24 Edisi 1 Tahun 2021
Publisher : Universitas Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47313/jig.v24i1.1144

Abstract

4G network is a technology that is currently being developed, known as LTE or 4G. An antenna microstrip for 4G technology is used in this paper. The antenna designed to resonate at a frequency of 1800 MHz-2300 MHz. The antenna design will use FR-4 for its substrate which functions as a dielectric for the antenna. The design is done using the help of CST Studio Suite 2014 software and NI AWR Design Environment v.12 to get the desired antenna characteristics through simulation. From our research we obtained the antenna characteristics such as return loss, VSWR (Voltage Standing Wave Ratio), gain, and bandwidth. In this research, a 4×1 patch rectangular microstrip array antenna has been designed and built that works at a frequency of 2.05 GHz for 4G technology. The antenna design uses the FR-4 for its substrate which functions as a dielectric for the antenna. The design is carried out with the help of CST Studio Suite software to obtain the desired antenna characteristics through simulation. From the research results obtained antenna characteristics such as return loss of -25.225 dB. VSWR (Voltage Standing Wave Ratio) of 1.15, the gain of 3.1 dBi, and bandwidth of 500 MHz with a 4×1 rectangular array antenna design.
Load Flow Analysis Capacitor Bank dengan Metode Konpensasi Individual dan Konpensasi Global Ruliyanta Ruliyanta; R.A. Suwodjo Kusumoputro; Idris Kusuma; Adhyarta Keraf
Jurnal Ilmiah Giga Vol 25, No 1 (2022): Volume 25 Edisi 1 Tahun 2022
Publisher : Universitas Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47313/jig.v25i1.1591

Abstract

Abstract. Large buildings use lots of electrical equipment. The equipment includes air conditioning systems, building transportation, pumps, and others. One of the problems often encountered is the emergence of a decrease in power factor due to inductive loads. These induction machines cause this inductive load. One way to overcome this problem, Capacitor Bank is needed. The building that we observed is a building that has been operating for more than 20 years and has undergone a Single Line Diagram (SLD) change, where the capacitor bank does not work properly so the power factor is close to 0.85. This study rearranges the SLD according to the latest electrical loads in the building. The new SLD results are simulated using the Load Flow Analysis method with ETAP software, to achieve a quality factor of 0.99. In the Individual Compensation Method, it produces a savings of 13.9 kW, and this will result in a return on investment in the 40th month, and in the 2nd method, we use the Global Compensation Method which results in an improvement of 9.7 kW and a return on investment in the 57th month. Abstrak. Pada gedung-gedung besar menggunakan peralatan listrik. Peralatan tersebut seperti sistem tata udara, transportasi gedung, pompa dan lain-lain. Salah satu permasalahan yang sering dijumpai adalah timbulnya penurunan faktor daya akibat beban induktif. Beban induktif ini disebabkan oleh mesin-mesin induksi. Salah satu cara untuk mengatasinya adalah dengan menambahkan Capacitor Bank. Gedung yang kami teliti adalah gedung yang sudah beroperasi lebih dari 20 tahun dan sudah mengalami perubahan Single Line Diagram (SLD), selain itu capasitor bank tidak bekerja dengan baik sehingga faktor daya mendekati 0.85. Penelitian ini menyusun ulang SLD sesuai dengan beban listrik terbaru dalam gedung. Hasil SLD yang baru kami simulasikan dengan metode Load Flow Analysis dengan perangkat lunak ETAP, untuk mencapai faktor kualitas sebesar 0,99. Pada Individual Compensation Method menghasilkan penghematan sebesar 13.9 kW dan ini akan menghasilkan return of investment pada bulan ke-40 dan pada metode ke-2 kami pakai Global Compencsation Method yang menghasilkan perbaikan 9.7 kW dan return of investment di bulan ke-57.
Perancangan Antena Pesawat Tanpa Awak Menggunakan ANSYS High-Frequency Structure Simulator Ruliyanta Ruliyanta; Muhammad Fahrurozi; Herry Satria Utama
Jurnal Ilmiah Giga Vol 25, No 2 (2022): Volume 25 Edisi 2 Tahun 2022
Publisher : Universitas Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47313/jig.v25i2.1914

Abstract

Using crewless aircraft or Unmanned Aerial vehicles (UAV) is rife in the civil and military world. The problem that often occurs is that the UAV has disconnected from the control center. One of the reasons was that the aircraft was operating outside the radio control center's range. This study aims to design a control antenna with a higher gain than the previous research antenna, which is used as a reference. The method we used is designing a 2×8 circular array microstrip antenna using the Ansys high-frequency structure simulator (HFSS) software. The result gives a return loss value of -30.25 dB, a voltage standing wave ratio (VSWR) of 1.11, and a bandwidth of 512,1 MHz. The amount of gain is 12.94 dB. The magnitude of the reflection coefficient of the designed antenna is 0.017. This value means that the amount of power reflected by the designed antenna is 1.7%, or the antenna is capable of capturing signals of up to 98.3%.
Perancangan Antena Komunikasi Selular Generasi ke-5 pada Frekuensi 2.350 MHz di Indonesia David Gideon; Ruliyanta Ruliyanta; Rianto Nugroho
Jurnal Ilmiah Giga Vol 26, No 1 (2023): Volume 26 Edisi 1 Tahun 2023
Publisher : Universitas Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47313/jig.v26i1.2468

Abstract

The current development of the cellular communication system has ushered in the 5G telecommunications era. The government has provided a 2.3 GHz frequency spectrum for 5G implementation in Indonesia. The frequency value used in the implementation of 5G technology in Indonesia which has just started can be said to have a high impact with a high attenuation value, so an antenna with the right dimensions and parameters is needed to be used in the application of 5G technology. In this study, a microstrip antenna was designed and manufactured with a 2x8 patch circular array shape working at a frequency of 2,350 MHz for application to 5G technology using the microstrip line feed feeder method. The design and manufacture of the antenna design utilize the Ansys HFSS application and uses the FR-4 Epoxy substrate with a dielectric constant value of 4.4, a substrate thickness of 1.6 mm, and a patch made of copper. The results of the design based on the simulation results obtained the working frequency value at 2,350 MHz with a return loss value of -21.9711 dB and a wide bandwidth of 109 MHz. The VSWR value obtained is 1.0849 with a gain value of 10.06 dB and a directional radiation pattern. Based on the results of the analysis, the microstrip antenna design test has good parameter values from previous studies at the same working frequency and the microstrip antenna is suitable for use to support the development of 5G technology.
Co-Authors Adhyarta Keraf Azmi Awang Md Isa David Gideon E. R. Nugroho Endang Retno Nugroho Herry Satria Utama I Wayan Wiagra Idris Kusuma Mohd Riduan Ahmad Muhammad Al Fauzi Muhammad Fahrurozi Puji Hartono Puji Hartoyo R. A. S Kusumoputro R. A. Suwodjo Kusumoputro R.A. Suwodjo Kusumoputro R.A. Suwodjo Kusumoputro Rama Asy'ari Rianto Nugroho Rianto Nugroho Wismanto Setyadi Wismanto Setyadi