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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) EMITTER International Journal of Engineering Technology KLIK (Kumpulan jurnaL Ilmu Komputer) (e-Journal) Jurnal Komputer Terapan INOVTEK POLBENG

Tri Budi Santoso

Politeknik Elektronika Negeri Surabaya

Author-ID : 2456715

Computer Science & IT

Published : 9 Documents Claim Missing Document

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Pemodelan Non-uniform Coded-Modulation pada Kanal Akustik Bawah Air di Lingkungan Perairan Dangkal Sholihah Ayu Wulandari; Tri Budi Santoso; I Gede Puja Astawa; Muhamad Milchan
INOVTEK POLBENG Vol 9, No 1 (2019): INOVTEK VOL.9 NO 1 - 2019
Publisher : POLITEKNIK NEGERI BENGKALIS

In this paper, presented an OFDM performance evaluation with the Non-uniform Coded-Modulation in the underwater acoustic channel in shallow water. A row of binary information is encoded by BCH code (7.4) for error correction and combined with Non-uniform modulation which is the result of modification of the subcarrier arrangement of the OFDM standard IEEE 802.11a. Modeling uses 52 subcarriers consisting of 4 pilots and 48 subcarrier data which are divided into three parts, i.e.: 24 subcarrier data with 16-Quadrature Amplitude Modulation (16-QAM) modulation, 12 subcarrier data with Quadrature phase-shift keying (QPSK) modulation and 12 other data subcarriers with Binary key-shift keying (BPSK) modulation. The channel type used describes the Additive White Gaussian Noise (AWGN) condition and is the result of measurement data. The analysis is done in terms of Signal-to-Noise-Ratio (SNR) and Bit Error Rate (BER) show that the value of the error rate of 0.001, modulation of BPSK, QPSK, 16-QAM, and Non-uniform modulation required the power each 5 dB, 8.5 dB, 10.3 dB, and 7.9 dB. However, the proposed system is able to suppress the required power up to 6 dB. The proposed system also shows better performance than fixed modulation and Non-uniform Modulation, which in this case with low power to achieve the same error rate. In addition, the proposed system has a coding gain of 1.9 dB compared to a non-uniform modulation system. Real testing is also done with measurement data at Mangrove estuary, Surabaya. The results show performance similar to simulations performed on Gaussian noise channels.

MEMBANGUN MODUL PEMBELAJARAN PENGOLAHAN SINYAL PADA PLATFORM MINI PC Tri Budi Santoso
INOVTEK POLBENG Vol 9, No 2 (2019): INOVTEK VOL.9 NO 2 - 2019
Publisher : POLITEKNIK NEGERI BENGKALIS

Pada makalah ini diusulkan suatu model pembelajaran di laboratorium untuk mata kuliah pengolahan sinyal dengan memanfaatkan platform Mini PC, yang dalam hal ini adalah Raspberry pi. Strategi ini dipilih dengan tujuan untuk mengurangi kesenjangan yang sering terjadi di dalam proses pembelajaran dan memanfaatkan trend teknologi device yang semakin mudah diperoleh dengan harga terjangkau. Ada tiga modul yang disajikan, yang pertama adalah perancangan filter digital, yang kedua adalah prediksi voice-unvoice, dan yang ketiga adalah estimasi nilai pitch frekuensi. Modul yang dibangun diharapkan dapat membantu proses pemahaman sistem pengolahan sinyal, yang pada umumnya sering ditemui jika hanya menggunakan metode pendekatan matematik atau model simulasi perangkat lunak.

Co-Authors Agus Indra Gunawan Amang Sudarsono, Amang Bustamir Arif Hary Octavianto I Gede Puja Astawa Mike Yuliana Mirza Ardiana Muhamad Milchan Muhammad Edy Hidayat Nurul Istiqomah R Rizki Rachmadi Sendi Eka Nilasari Titon Dutono Wulandari, Sholihah Ayu Yulistia Khoirotul Aini Zulmi Zakariyah

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