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All Journal Jurnal Edukasi Elektro Elektron Jurnal Ilmiah Emitor: Jurnal Teknik Elektro JOIV : International Journal on Informatics Visualization JIKO (Jurnal Informatika dan Komputer) Jurnal Media Elektro : Journal of Electrical Power, Informatics, Telecommunication, Electronics, Computer and Control System JTEIN: Jurnal Teknik Elektro Indonesia Brilliance: Research of Artificial Intelligence International Journal of Advanced Science Computing and Engineering
Afrizal Yuhanef
Politeknik Negeri Padang
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mathematics Other

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Journal : Elektron Jurnal Ilmiah

 1 
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (301.223 KB) | DOI: 10.30630/eji.5.1.47

Abstract

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.
PENGUATAN SINYAL GLOBAL SYSTEM FOR MOBILE COMMUNICATION (GSM) 900 MHz MENGGUNAKAN ANTENA GRID Afrizal Yuhanef
Elektron : Jurnal Ilmiah Vol 5 No 1 (2013): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (485.237 KB) | DOI: 10.30630/eji.5.1.48

Abstract

The antenna is a device used to transmit or receive electromagnetic waves electromagnetic waves. Reception using an antenna will amplify the signal acquisition in accordance with the ability of the antenna itself. Service providers GSM (Global System Mobile), with the inclusion of the network limitations make the need for strengthening the acquisition of the signal is very large. Grid antenna is one option reinforcement signal acquisition. Grid antenna has a major component that is driven in the form of a dipole and a reflector which serves to reflect the signal beam. In this final project is designed, realized and measured at the antenna grid on GSM 900 MHz. This antenna is intended to be a media aids in strengthening the GSM signal reception to maximize the signal acquisition and connections
Aplikasi Sistem VoIP Menggunakan Smartphone pada Jaringan Wireless LAN Afrizal Yuhanef; Ramiati ramiati
Elektron : Jurnal Ilmiah Vol 6 No 1 (2014): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (130.911 KB) | DOI: 10.30630/eji.6.1.65

Abstract

Teknologi komunikasi suara sekarang ini telah banyak digunakan diberbagai lapisan masyarakat. Pada jaringan suara di perkantoran atau pemamfataan Sistem komunikasi berbasis LAN, pesawat telepon terhubung dalam jaringan Privat Automated Branch Exchange (PABX). Voice Over Internet Protocol (VoIP) adalah teknologi yang menawarkan telepon melalui jaringan Internet Protocol (IP). Penggunaan jaringan IP memungkinkan penekanan biaya pada sebuah perusahaan karena dalam penggunaanya tidak perlu membangun sebuah infrastruktur baru. Seperti tidak perlu lagi penambahan access telpon rumah/Privat Automated Branch Exchange (PABX). Penerapan atau implementasi dari rancangan yang telah dibuat, yaitu mulai dari menginstall sistem operasi dilanjutkan dengan konfigurasi, kemudian menginstall 3CX Phone System, 3CXPhone-1.3.4 dan mengkonfigurasikannya. Dilanjutkan dengan konfigurasi Wireless Access Point dan mengintegrasikan client VoIP dengan Voip Server yang dibangun.Wireless Acces Point yang digunakan sebagai media transfer data pada aplikasi sistem jaringan, mampu menjadi penghubung yang digunakan dalam layanan komunikasi suara melalui bantuan server VoIP berbasis Android. User Datagram Protocol (UDP) salah satu protokol yang paling banyak digunakan dalam komunikasi menggunakan VoIP. Teknologi VoIP berbasis Android dapat meminimalisir biaya operasional suatu perusahaan sehingga dapat berkomunikasi tanpa harus mengeluarkan biaya Pulsa berlebih dan biaya Penyewaan perangkat PABX.
Co-Authors - Firdaus Agus Purwadi Aprinal Adila Asril Ardi Syawaldipa Bintan Thaibah Dikky Chandra Dikky Chandra Dikky Chandra Dini Oktri Yanti Dwiny Meidelfi Fitri Amalia Gilang Riandaisan Herry Setiawan Isnurisi Isnurisi Isnurisi Isnurisi Lince Markis Meza Silvana Nasrul - Oktarina Permata Yaseva Ramiati Ramiati Rifki Wafi Siska Aulia Sri Yusnita Sri Yusnita Yulindon Yulindon Zurnawita -