Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

1.037

P-Index

This Author published in this journals

All Journal Elektron Jurnal Ilmiah Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control RELE: Rekayasa Elektrikal dan Energi Jurnal Teknik Elektro Jurnal Teknologi Informasi dan Terapan (J-TIT) Jurnal Syntax Transformation Jurnal Rekayasa elektrika Jurnal Informatika Polinema (JIP) International Journal of Wireless And Multimedia Communications

Agus Purwadi

Politeknik Negeri Jember

Author-ID : 5721517

Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Library & Information Science Social Sciences

Published : 9 Documents Claim Missing Document

Claim Missing Document

Articles

TEKNIK ESTIMASI DAN KOMPENSASI GERAK PADA VIDEO CODING FGS (Fine Granularity Scalability) Agus Purwadi; Afrizal Yuhanef; Lince Markis
Elektron : Jurnal Ilmiah Vol 5 No 1 (2013): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Motion estimation is a process to determine the movement of an object on video sequential. The movement of objects is known as motion vector. A motion vector indicates a shift point between the current frame with the reference frame. Of motion vector is obtained, it would seem that the movement of the dots between the observed frame. In this study using the algorithm block maching SAD (Sum of Absolute Different), the search process is done per pixel. To determine the quality of the movement of objects in each frame interpolation is obtained by calculating the PSNR value. PSNR values range from 35 to 40 dB. From the research conducted using the 90 frame interpolation obtained PSNR value decreases.

Unjuk Kerja Transmisi Video Dengan Teknik Pengkodean Spasial Skalabilitas Agus Purwadi; Hadria Octavia; Ichsan Mahjud
Elektron : Jurnal Ilmiah Vol 6 No 1 (2014): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Video transmission over the internet can be a great possibility of the existence of lost packets (packet loss) and load variations in a large bandwidth. This is a source of network congestion can interfere with the rate of data communication. In this paper the proposed planning optimal error control in scalable video transmission to a video coding technique FGS (Fine Granularity Scalability), which is an improvement on the MPEG-4 video coding, which has outputs are scalable base layer and layer Enhanchement that have different sizes and rates , which the application will be adapted to the transmission network conditions, the ultimate goal is to minimize any distortion from the source to the destination. In the simulation yields a value Peak Signal to Noise Ratio (PSNR) on the base layer of 29, 683 dB and 78,917 dB enhancemenet layer and the base layer for the MSE of 69,998 dB and 0,000834417 dB enhancemenet layer, Means Square Error (MSE) as the performance of the network system performance on video quality for both the base layer and layer Enhanchement

Sistem Mitigasi Bencana Tanah Longsor Berbasis Gelombang Radio Agus Purwadi; Denny Trias Utomo; Partaonan Harahap
-
Publisher : RELE (Rekayasa Elektrikal dan Energi) : Jurnal Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rele.v5i2.13080

Abstrak Wilayah Indonesia memiliki potensi tinggi untuk terkena bencana geologi, yaitu letusan gunung api, gempa bumi, longsor, tsunami dll. Dengan tujuan memberi perlindungan dari bencana geologi, dan menekan jumlah korban jiwa dan kerugian harta benda yang mungkin timbul, maka perlu dilakukan mitigasi bencana geologi. Mitigasi merupakan proses mengupayakan berbagai tindakan preventif untuk meminimalkan dampak negatif bencana alam yang diantisipasi akan terjadi di masa yang akan datang di suatu wilayah. Di suatu daerah yang jaringan GSM-nya cukup besar, sistem informasi kebencanaan sudah digantikan oleh teknologi canggih yang dikembangkan protokol GSM. Namun bila terjadi gangguan telekomunikasi via handphone saat bencana, atau adanya gangguan jaringan listrik, dalam ketiadaan komunikasi regular, atau saat semua infrastruktur komunikasi jatuh dan juga kondisi geografis daerah yang tidak terjangkau jaringan publik. Maka salah satu media yang efektif dalam upaya menciptakan sistem informasi yang ideal adalah komunikasi radio, yang mana banyak dipakai para anggota Amatir Radio yang tersebar luas di Indonesia. Radio, merupakan media elektronik yang tidak hanya murah, tetapi juga dapat diakses oleh semua lapisan masyarakat, bahkan daya jangkau siaran Radio sampai ke segala penjuru daerah terpencil yang minim fasilitas. Maka penelitian ini dilakukan untuk menggunakan transmisi gelombang radio pada spectrum VHF dengan frekuensi 144 MHz sebagai media transmisi untuk melewatkan sinyal informasi mitigasi bencana berupa tanah longsor untuk masyarakat lokal. Dari integrasi sistem tersebut kemudian dilakukan pengukuran untuk mendapatkan nilai arah rambat gelombang, gain serta bandwith dari transmisi gelombang radio tersebut.Kata kunci : Gelombang Radio, FSK (Frequency Shift Keying), VHF (Very High Freqwensi)AbstractIndonesian territory has a high potential for geological disasters such as volcanic eruptions, earthquakes, landslides, tsunamis. To provide disaster protection it is necessary to carry out mitigation which is a preventive action to minimize the negative impact of natural disasters that occur. In areas where the GSM network is large enough, the disaster information system is being replaced by the advanced technology developed by the GSM protocol. However, if there is a telecommunication disruption and when all the regular communication infrastructure is down as well as geographic conditions are not covered by the public network. So one of the effective media in an effort to create an ideal information system is radio communication, which is widely used by Amatir Radio members who are widespread in Indonesia which can be accessed by all levels of society with a wide range. So this research was conducted by utilizing the VHF spectrum radio wave transmission with a frequency of 144 MHz as a transmission medium to convey information signals on landslide disaster mitigation for the community. From the system integration measurements were taken to obtain the value of the ground motion sensor and the range of radio wave transmission.. Keywords : Radio Waves, FSK (Frequency Shift Keying), VHF (Very High Frequency)

Fatigue Detection of XYZ Drivers based on Human Brain Wave EEG Signals Shabrina Choirunnisa; Beni Widiawan; Yogiswara Yogiswara; I Gede Wiryawan; Agus Purwadi; Bekti Maryuni Susanto
Jurnal Teknologi Informasi dan Terapan Vol 9 No 2 (2022)
Publisher : Jurusan Teknologi Informasi Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jtit.v9i2.299

The cause of death due to traffic accidents isnow increasingly common. One of the main factors causing thisaccident is driver fatigue. This can happen because the driveris not aware of his tired mental state. Of course mental fatiguecan cause a lack of concentration while driving. This mentalfatigue can be detected by analyzing the brain waves throughthe EEG signal from the driver. This brain wave analysis canbe done by various methods. In this study, the authorsconducted a brain wave-based detection of mental fatigueusing the Fourier transform and Support Vector Machine. TheEEG signal data will be feature extracted using the FourierTransform. Then, the results of this extraction will be used forthe classification process with the Support Vector Machinemethod. Based on the experimental results, the classification ofmental fatigue using a Support Vector Machine with a linearkernel obtained an average accuracy of 85%.

Wireless Sensor Transmission System Using Circular Polarized Antenna At 2.4 Ghz Frequency Hariyono Rakhmad; Agus Purwadi; Victor Phoa
Jurnal Syntax Transformation Vol 4 No 5 (2023): Jurnal Syntax Transformation
Publisher : CV. Syntax Corporation Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/jst.v4i5.728

Sensors in the electronic world are parts that are used to detect changes in the physical or chemical environment. The output from the sensor is converted into an electrical quantity that represents the change in the environment. Sensors are widely used in agriculture, especially to detect changes in the physical or chemical environment related to plant growth, for example: temperature sensors, light sensors, soil moisture sensors, and so on. In agricultural applications that have a large area, the problem of location and distance from the sensor to the control center is a problem in itself. To solve this problem, a sensor system is designed that does not use wired (wireless) connections. In the application of wireless communication systems there is an antenna part which is very important which can affect the rate of sending sensor data. To improve the performance of wireless sensors in sending data, it is necessary to integrate the appropriate antenna with the sensor transceiver system. So this research was conducted to integrate circular polarized antennas with sensors to increase the gain in the transmission. From this integration, measurements are then taken to obtain the value of the radiation pattern, gain and bandwidth. From the resulting measurements, it can be seen that there is an increase in the gain of the wireless sensor transmission using the 2.4 GHz frequency

Skalabilitas Signal to Noise Ratio (SNR) pada Pengkodean Video dengan Derau Gaussian Agus Purwadi
Jurnal Rekayasa Elektrika Vol 11, No 3 (2015)
Publisher : Universitas Syiah Kuala

In video transmission, there is a possibility of packet lost an d a large load variation on the bandwidth. These are the source of network congestion, which can interfere the communication data rate. This study discusses a system to overcome the congestion with Signal-to-noise ratio (SNR) scalability-based approach, for the video sequence encoding method into two layers, which is a solution to decrease encoding mode for each packet and channel coding rate. The goal is to minimize any distortion from the source to the destination. The coding system used is a video coding standards that is MPEG-2 or H.263 with SNR scalability. The algorithm used for motion compensation, temporal redundancy and spatial redundancy is the Discrete Cosine Transform (DCT) and quantization. The transmission error is simulated by adding Gaussian noise (error) on motion vectors. From the simulation results, the SNR and Peak Signal to Noise Ratio (PSNR) in the noisy video frames decline with averages of 3dB and 4dB respectively.

EVALUASI PENGIRIMAN VIDEO MENGGUNAKAN PENGKODEAN SKALABILITAS SPASIAL DENGAN GANGGUAN PADA KANAL INTERNET Agus Purwadi; Baharuddin Baharuddin
Jurnal Informatika Polinema Vol. 4 No. 1 (2017): Vol 4 No 1 (2017)
Publisher : UPT P2M State Polytechnic of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jip.v4i1.140

Video transmission over the internet can be a great possibility of the existence of lost packets (packet loss) and load variations in a large bandwidth. This is a source of network congestion can interfere with the rate of data communication. In this paper the proposed planning optimal error control in scalable video transmission to a video coding technique FGS (Fine Granularity Scalability), which is an improvement on the MPEG-4 video coding, which has outputs are scalable base layer and layer Enhanchement that have different sizes and rates, which the application will be adapted to the transmission network conditions, the ultimate goal is to minimize any distortion from the source to the destination. In the simulation yields a value Peak Signal to Noise Ratio (PSNR) on the base layer of 29, 683 dB and 78,917 dB enhancemenet layer and the base layer for the MSE of 69,998 dB and 0,000834417 dB enhancemenet layer, Means Square Error (MSE) as the performance of the network system performance on video quality for both the base layer and layer Enhanchement.

Design and Construction of A Grid Antenna to Enhance Global System for Mobile Communications 900 Mhz Signal Reception Widiyastuti, Ayu; Ramiati, Ramiati; Purwadi, Agus; Rini Febriani, Rini Febriani
International Journal of Wireless And Multimedia Communications Vol. 1 No. 2 (2024): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v1i2.24

Human life is inseparable from the interaction between humans as social beings and technology as the medium used by humans. The capabilities of technology have addressed various human challenges for interacting with each other, where limitations of distance, time, and space are no longer barriers to human desire for communication. The Global System for Mobile communication (GSM) is a cellular communication technology applied to mobile communication, especially mobile phones, thus providing conveniences as a medium for information delivery. However, in remote or rural areas far from the Base Transceiver Station (BTS), the signal coverage is poor. This will disrupt communication such as short message service (SMS), telephone calls, internet access, and other forms of communication. An antenna is a device used to transmit or receive electromagnetic waves. Reception using an antenna will amplify the signal acquisition according to the antenna's capabilities. GSM (Global System for Mobile Communications) service providers, with their limited network coverage, create a significant need for signal acquisition enhancement. The Grid antenna is one of the options for signal acquisition enhancement. The Grid antenna has two main components: the driven element, which is a dipole, and a reflector that serves to reflect the signal transmission. This Final Project is designed, realized, and measured on a grid antenna at GSM 900 MHz. This antenna is intended to serve as a supporting medium to enhance GSM signal reception in order to maximize signal acquisition and connection.

Performance Evaluation of Motion Estimation and Compensation Algorithms in SNR Scalable Video Encoding Purwadi, Agus Purwadi; Riskiawan, Hendra Yufit; Hariyanto, Agus; Wibowo, Nugroho Setyo; Purbaningtyas, Rani
Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Vol. 11, No. 2, May 2026 (Article in Progress)
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/kinetik.v11i2.2466

Motion estimation is the sequential determination of the direction of motion of an object in a video. The movement of an object is denoted by the term motion vector. Between the current and reference frames, motion vectors can signify shift points. The SAD (Sum of Absolute Different) block matching technique is fundamentally dependent on the assessment of an object's motion. In this study proposes a hybrid approach that integrates the Three-Step Search (TSS) and Full Search (FS) algorithms. This integration aims to design a block matching algorithm that is applied to video encoding using signal-to-noise ratio (SNR) scalability. From this design, we hope to obtain the performance and evaluate the motion estimation process utilizes both the TSS and FS algorithms for performance comparison on SNR scalability video encoding to obtain video frame quality in relation to bit rate and PSNR, based on the average comparison of the two algorithms. Based on the experimental results, the FS algorithm achieved a total BD-PSNR of 0.22 dB with an efficiency rate of 12.45%, whereas the TSS algorithm achieved a total BD-PSNR of 0.18 dB and an efficiency rate of 7.6%. Therefore, the FS algorithm demonstrates superior performance compared to the proposed TSS algorithm in video transmission with SNR scalability.

Co-Authors Afrizal Yuhanef Agus Hariyanto Baharuddin Baharuddin Bekti Maryuni Susanto Beni Widiawan, Beni Denny Trias Utomo, Denny Trias Hadria Octavia Hariyono Rakhmad Hendra Yufit Riskiawan I Gede Wiryawan Ichsan Mahjud Lince Markis Nugroho Setyo Wibowo Partaonan Harahap Ramiati Ramiati Rani Purbaningtyas, Rani Rini Febriani, Rini Febriani Victor Phoa Widiyastuti, Ayu Yogiswara Yogiswara

Title

Found 9 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 9 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 9 Documents
Search