Garuda - Garba Rujukan Digital

p-Index From 2020 - 2025

7.635

P-Index

This Author published in this journals

All Journal Jurnal Ilmiah Merpati (Menara Penelitian Akademika Teknologi Informasi) Jurnal Ilmu Komputer Buletin Udayana Mengabdi Jurnal SPEKTRUM Majalah Ilmiah Teknologi Elektro Jurnal Pendidikan Teknologi dan Kejuruan TELKOMNIKA (Telecommunication Computing Electronics and Control) PIKSEL : Penelitian Ilmu Komputer Sistem Embedded and Logic PROSIDING CSGTEIS 2013 Jurnal Teknologi Informasi dan Ilmu Komputer JUITA : Jurnal Informatika JOIV : International Journal on Informatics Visualization Sinkron : Jurnal dan Penelitian Teknik Informatika Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Syntax Literate: Jurnal Ilmiah Indonesia Matrix : Jurnal Manajemen Teknologi dan Informatika Cetta: Jurnal Ilmu Pendidikan Jurnal RESISTOR (Rekayasa Sistem Komputer) Astonjadro Journal of Electrical, Electronics and Informatics Jurnal Ilmiah Vastuwidya Prosiding Seminar Nasional Sisfotek (Sistem Informasi dan Teknologi Informasi) MATRIX : JURNAL MANAJEMEN TEKNOLOGI DAN INFORMATIKA Majalah Ilmiah Teknologi Elektro

I Made Oka Widyantara

Electrical Engineering Universitas Udayana

Author-ID : 416519

Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mechanical Engineering Social Sciences Other

Published : 119 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4 5

DESAIN SIMULASI UNJUK KERJA KODE SMALL KASAMI PADA KANAL MULTIPATH FADING I Kadek Adi Wiguna Sanjaya; Nyoman Pramaita; I Made Oka Widyantara
Jurnal SPEKTRUM Vol 8 No 3 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Telecommunication capable of handling interference, fading and no less importantissues regarding the confidentiality of user information is very much needed in the currenttechnological era, to overcome this spread spectrum technology is quite developed in theadvancement of telecommunication technology. In this study, the small kasami code was usedas the spreading code. The purpose of this study is to determine the performance of the smallkasami code with changes in the number of multipath components using multipath fadingchannels. The modulation technique uses digital modulation, namely binary phase shift keying(BPSK) with a small kasami code with a code length of 15 in the spreading and spreadingprocess. Analyzed based on BER (Bit Error Rate) versus EB/No (Energy Bit per Noise). In thesimulation of flat fading performance using 1 multipath component, flat fading serves as an idealreference where the simulation BER should resemble the theoretical BER as simulationvalidation so that it can be used on selective fading channels. Variation of multipathcomponents in frequency selective fading channel produces different BER because there isinterference of multipath signal to the desired signal. The number of multipath components asmany as 11 have the most interference signals resulting in the worst performance. The value ofcross correlation between users has poor performance, where the correlation value of user 1with 2, 3, and 4 is more than 0, this value shows that many signal levels experience interferencebetween users.

TEKNIK ESTIMASI GERAK PENCARIAN PENUH DENGAN AKURASI SETENGAH PIKSEL UNTUK FRAME RATE UP CONVERSION VIDEO P. A. Satya Prabhawa; I M. O. Widyantara; G. Sukadarmika
Jurnal SPEKTRUM Vol 1 No 1 (2014): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1826.129 KB)

Saat ini Teknologi video digital banyak digunakan pada aplikasi hiburan, contohnya adalah TV Digital dengan format HD. Dengan frame rate tinggi, pengkodean video akan menghasil laju bit lebih tinggi yaitu sampai 15 – 30 fps. Permasalahannya adalah kapasitas saluran transmisi memiliki kapasitas terbatas. Solusinya adalah menurunkan laju bit dengan menurunkan jumlah frame video ke penerima. Skema ini dikenal dengan Frame Rate Up-Conversion (FRUC) video, dimana frame yang di encoder akan direkonstruksi kembali di decoder dengan membangkitkan frame intermediate (FI). FI dibangkitkan dengan teknik Motion Compensation Interpolation (MCI). Terkait dengan metode FRUC, penelitian ini mengajukan skema MCI unidirectional dengan pencarian gerak akurasi setengah piksel. Pada skema ini, sebuah motion vector (MV) kandidat akan dicari di frame referensi, proses estimasi gerak dilakukan dengan menambah piksel sisipan diantara piksel eksisting. Sasarannya adalah meningkatkan akurasi MV kandidat. Hasil simulasi menunjukkan bahwa metode yang diajukan lebih baik sampai sebesar masing – masing 3,21 dB dan 3,11 dB pada wilayah pencarian 7 dan 15 piksel dibandingkan dengan metode frame repetition untuk sekuen video foreman dan hall monitor.

PERBAIKAN KONTRAS CITRA MENGGUNAKAN TEKNIK BRIGHTNESS ADJUSTMENT UNTUK SISTEM EKSTRAKSI GARIS PANTAI I Made Rai Putera Yasa; I Made Oka Widyantara; NMAE Dewi Wirastuti
Jurnal SPEKTRUM Vol 4 No 2 (2017): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

This study has evaluated the application of brightness adjustment technique to improve image contrast in the framework of coastline extraction on video-based shoreline monitoring system. In this monitoring system, the shoreline detection mechanism is done by introducing the land and sea objects in the video image. Changes in sea conditions due to weather changes cause a change in the contrast in the coastal image. The change in contrast will lead to inaccurate coastline detection. The brightness adjustment technique is applied to the image pre-processing to produce stable contrast in all conditions so that the coastal monitoring system can extract the coastline accurately. The brightness adjustment technique can adjust the brightness of the coastal image by setting the upper and lower threshold values of each pixel intensity. This study used 3 (three) sample video test images taken on morning, noon and afternoon to obtain different video image characteristics. The simulation results show that the application of brightness adjustment technique can increase the accuracy of shoreline extraction when using the threshold value of each at -20% for morning image condition, -40% for daytime image condition, and -35% for afternoon image condition .

KLASIFIKASI TRAFIK INTERNET KAMPUS BERBASIS PROTOKOL JARINGAN MENGGUNAKAN ALGORITMA NAÏVE BAYES I Made Bayu Dibawan; I Made Oka Widyantara; Linawati Linawati
Jurnal SPEKTRUM Vol 3 No 2 (2016): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (231.062 KB)

Komunikasi berbasiskan teknologi jaringan komputer merupakan teknologi yang sudah banyak digunakan. Komunikasi pada jaringan komputer, menggunakan aturan komunikasi yang sesuai dikenal dengan nama network protocol. Penggunaan network protocol dalam komunikasi di jaringan komputer, terkadang menuntut adanya prioritas komunikasi. Dasar dari pemberian prioritas adalah dengan menganalisa trafik jaringan internet dan pemberian prioritas yang dilakukan pada trafik jaringan. Prioritas tersebut bertujuan untuk mengoptimalkan penggunaan jaringan internet. Permasalahan yang didapat pada Kampus UNUD Jimbaran, antara lain data yang dikirim lambat, rusak dan bahkan tidak sampai ke tujuan dikarenakan trafik jaringan tersebut belum optimal. Pada penelitian ini melakukan klasifikasi terhadap data capture trafik jaringan yang diproses menggunakan Algoritma Naïve Bayes. Aplikasi yang digunakan untuk capture trafik jaringan yaitu aplikasi Wireshark. Hasil observasi terhadap dataset jaringan melalui proses perhitungan menggunakan Algoritma Naïve Bayes memiliki tingkat keakuratan yang sangat tinggi. yaitu sebesar 92,34 %. Hasil proses klasifikasi dijadikan sebagai acuan dalam penentuan pemberian prioritas terhadap network protocol yang sering digunakan dalam komunikasi jaringan.

PENGUKURAN KINERJA VOIP DENGAN CODEC G.711?, G.711a DAN G.729 DI MEDIA TRANSMISI NIRKABEL BERBASIS SIP DAN IAX Putu Sintia Susiani Pande; Pande Ketut Sudiarta; I Made Oka Widyantara
Jurnal SPEKTRUM Vol 5 No 1 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Voice over Internet Protocol (VoIP) is a technology that can send real-time data with IP-based networks (Internet Protocol). In VoIP technology with wireless network has several problems that cause the performance of the network to be varied due to the QoS (Quality of Service) include delay, jitter, packet loss and MOS that affect the wireless network. This research uses G.711?, G.711a and G.729 codec based on SIP and IAX server on wireless network which then the QoS result from each codec compared with ITU-T standard which become the reference of whether the network is good or not so that later can realized on campus. In the research results, QoS on wireless IEEE 802.11 b has linear results, whereas QoS wireless in VoIP has fluctuating results because the use of codecs in VoIP on each codec has a large bitrate and different coding techniques and is a feature of wireless networks. The QoS comparison of three codecs produced the best G711 Q7S codecs because the G.711 codec has a bitrate that conforms to the 64 kbps voice communication standard and uses voice coding techniques that match the digital signal encoding technique of PCM (Pulse Code Modulation).

RANCANG BANGUN APLIKASI PENYEBARAN RUMAH TANGGA MISKIN MENGGUNAKAN FLASH (ACTIONSCRIPT 2.0) DAN VISUAL BASIC BERBASIS DESKTOP (STUDI KASUS : KOTA DENPASAR) Indra Dwi Cahya Setyawan; I Made Sukarsa; I Made Oka Widyantara
Jurnal SPEKTRUM Vol 2 No 2 (2015): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (196.981 KB)

Aplikasi jendela rumah tangga miskin (RTM) Kota Denpasar berbasis web digunakan untuk menvisualisasikan penyebaran RTM. Selain itu aplikasi ini juga menvisualisasikan puskesmas, lembaga perkreditan desa, dan pasar di Kota Denpasar. Aplikasi tersebut harus dijalankan dengan koneksi internet. Peneilitian ini membahas implementasi flash, visual basic dan xml untuk menvisualisasikan penyebaran RTM di Kota Denpasar. Hasil pengujian dari aplikasi menunjukkan bahwa flash dan visual basic dapat diimplementasikan ke penyebaran RTM di Kota Denpasar. Sehingga menjadi sebuah aplikasi desktop yang mempunyai beberapa animasi agar menjadi ciri khas dari aplikasi tersebut. Selain itu file xml dapat berfungsi sebagai penyimpanan data sehingga aplikasi bersifat dinamis.

FRAME RATE MINIMUM VIDEO DENGAN METODE NORMALIZED FRAME DIFFERENCE SEBAGAI PENDESKRIPSI INTENSITAS GERAK I.A Laksmi; N. Indra ER; I M.O. Widyantara
Jurnal SPEKTRUM Vol 2 No 3 (2015): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (290.257 KB)

Nilai frame rate minimum pada masing-masing konten video diprediksi dengan nilai Normalized Frame Difference dan hasil subjektif tes menggunakan Mean Opinion Score. Penilaian subyektif terhadap semua video yang diujikan dilakukan pada frame rate awal, yakni 25 fps, dan frame rate yang lebih rendah yaitu 12,5 fps; 8,375 fps; 6,25 fps; 5 fps; dan 4,125 fps. Berdasarkan perhitungan nilai Normalized Frame Difference dengan simulasi Matlab dan hasil subjektif tes dengan metode tes Simultaneous Double Stimulus for Continous Evaluation diperoleh persamaan umum memprediksi frame rate minimum yang berlaku untuk video hingga resolusi standard definition yaitu Frame Rate (umum)= -18,0286+ (7,0726 x MOS ) + (6,1392 x NFD).

SISTEM NOTIFIKASI SWITCH BERBASIS TEKNOLOGI WIRELESS Janice Jessica Indrayani; Nyoman Pramaita Nyoman Pramaita; I Made Oka Widyantara
Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

This research develops a remote switch notification system by utilizing radio waves. This system will usethe RF433 module and RF315 module as the transmission medium, the HT12E module as the encoderand the HT12D module as the decoder. The working principle of the system is that the sending partsends a signal when the voltage is applied via a push button, then the switch is sent to the part of theroom and activate the relay. Then in the relay there is also an encoder that will recode the data on therelay that the relay is active and resend the data to false senders so that the LED as notification will turnon. Based on the test results it is known that the remote switch notification system that has beendesigned is able to turn on and turn off the relay and also be able to transmit the notification properly.

RANCANG BANGUN APLIKASI KOMUNITAS MANCING BERBASIS ANDROID Edo Halim Saputra; I Made Arsa Suyadnya; I Made Oka Widyantara
Jurnal SPEKTRUM Vol 4 No 2 (2017): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

This research intends to build an application that can be a place for members of the fishing community. The application is built on three main modules: user management, spot fishing management, and discussion management. Applications built using java programming language with android platform this application also uses API (Application Programming Interface) built with PHP programming language as interface processing data to database. Application testing is done by black box method and usability software, with the test result stated that the three main modules are running well and deserve to be used to be a means of information exchange for members of the fishing community.

ANALISA METODE SHANNON ENTROPY DAN DIFFERENTIAL EVOLUTION UNTUK KOMPRESI GAMBAR I Komang Adi Bayu Adnyana; I Made Oka Widyantara; NMAE Dewi Wirastuti
Jurnal SPEKTRUM Vol 8 No 2 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

One of the most important phases in image storage is compression. Most current imagecompression methods are spatial. In this article, we present an image compression techniquebased on Multi-level Thresholding. The grayscale images are divided into groups based on thenet probabilistic division. To determine the grouping uncertainty, Shannon Entropy is used.Optimization methods have also been added to obtain more optimal settings. DifferentialEvolution is an optimization technique. Image histogram is a graph that depicts the distributionof pixel intensity values of an image. Image compression performance measurement wasmeasured using FSIM (Feature Similarity Index Measure) and SSIM (Structural Similarity IndexMeasure).

Co-Authors A. T. A Prawira Kusuma A.A. Made Agung Istri Iswari Aditya Dwipayana Aditya Widhiatama, Ngakan Putu Agus Anwar Eka Wahyudi Anak Agung Ayu Putri Ardyanti Anang Kusnadi Aniek Laksmidewi Arda Narendra, I Gusti Lanang Asana, I Made Dwi Putra Atmaja, Ketut Jaya Ayuni Harianti Bagus D. Cahyono Christanto Nadeak, Yobel Cokis Ratih Kumbara Derry Suia Pathentantama Desak Ayu Sista Dewi Dessy Hariyanti, NK Dewa Ayu Indah Cahya Dewi Dewa Made Sri Arsa, Dewa Made Dewa Made Wiharta Edo Halim Saputra Fajar Purnama Gamantyo Hendrantoro Gede Manuaba, Ida Bagus Gede Sukadarmika Haris Chandra Agustina I Dewa Gede Hardi Rastama I G. A. K. Diafari Djuni Hartawan I G.A.K. Warmayana I Gede Iwan Sudipa I Gede Sudiantara I Gede Sudiantara I Gusti Agus Adek Putra Ardiwinata I Gusti Ayu Garnita Darma Putri I Gusti Nyoman Dharmayana I Gusti Rai Agung Sugiartha I Kadek Adi Wiguna Sanjaya I Kadek Noppi Adi Jaya I Komang Adi Bayu Adnyana I Made Aditya Virgiawan I Made Arsa Suyadnya I Made Bayu Dibawan I Made Dhanan Pradipta I Made Dwi Putra Asana I Made Rai Putera Yasa I Made Sukarsa I Made Yudi Candra Putra I Nyoman Gede Arya Astawa I Nyoman Gunantara I Putu Agus Eka Pratama I Putu Ardana I Putu Gd Sukenada Andisana I Putu Noven Hartawan I Wayan Kayun Wardana I Wayan Shandyasa I Wayan Shandyasa I.A Laksmi IBGD. Dhyaksa Ida Bagus A. Swamardika Ida Bagus Putu Adnyana Ida Bagus Putu Adnyana Indra Dwi Cahya Setyawan Janice Jessica Indrayani Jayantari, Made Widya Juliawan Pawana, I Wayan Adi Kadek Surya Adi Saputra Kamarudin, Nur Diyana Ketut Bagus Bayu Sanjaya Komang Ery Rusdiana Komang Gede Widi Adnyana Komang Kompyang Agus Subrata Komang Oka Saputra Komang Tri Wahyuni . L Linawati L.D. Purnamasari Linawati Linawati Linawati Linawati linawati linawati Linawati Linawati Lintin, Yosep Tara M Acarya Mordekhai Karang M Zatiar Erwan Kalam M. Azman Maricar made andyka Made Arya Putra Kusuma Made Sudarma Made Sudarma Merliana, Ni Putu Eka Muhammad Audy Bazly N Utami Wedanti N. M. A. E. Dewi Wirastuti N.M.A.E.D Wirastuti Ngurah Indra ER Ni Komang Ayu Suandaniasih Ni Made Ary Esta Dewi Wirastuti Ni Putu Widya Yuniari Nyoman Pramaita Nyoman Pramaita Nyoman Putra Sastra Oka, I Dewa Gede Ari P. A. Satya Prabhawa Pawana P., I Gusti Ngurah Agung Pawana, I Wayan Adi Juliawan Prabawa, I Nyoman Angga Pradnyana, I Made Putri Alit Widyastuti Santiary Putu Agus Pradnyana Jaya Putu Arya Mertasana Putu Krisna Adi, I Gusti Ngurah Putu Prima Winangun Putu Sintia Susiani Pande R. Sapto Hendri Boedi Soesatyo Rukmi Sari Hartati Sandhiyasa, I Made Subrata Santi Ika Murpratiwi Saputra, Komang Oka Setyohadi, Djoko Budiyanto Sri Andriati Asri, Sri Andriati Susila, Anak Agung Ngurah Hary Tri Febriana Handayani W. Setiawan Widiadnyana, Putu Widyadi Setiawan Widyanto, I Putu Wikananda, I Gusti Ngurah Satya Wirawan Wirawan

Title

Found 119 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 119 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 119 Documents
Search