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All Journal Jurnal Teknologi Perikanan dan Kelautan Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut Jurnal Ilmu dan Teknologi Kelautan Tropis Seminar Nasional Aplikasi Teknologi Informasi (SNATI) ILMU KELAUTAN: Indonesian Journal of Marine Sciences Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology POSITRON Jurnal Keteknikan Pertanian Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Jurnal Kelautan Tropis Jurnal Teknik Sipil Journal of Geoscience, Engineering, Environment, and Technology Journal of Applied Geospatial Information JURNAL ENGGANO Omni-Akuatika BULLETIN OF THE MARINE GEOLOGY Jurnal Otomasi Kontrol dan Instrumentasi Marine Research in Indonesia Bawal : Widya Riset Perikanan Tangkap Jurnal Kelautan Nasional International Journal of Remote Sensing and Earth Sciences (IJReSES) Jurnal Geologi Kelautan: Media Hasil Penelitian Geologi Kelautan Jurnal Riset Jakarta Jurnal Chart Datum Jurnal Risalah Kebijakan Pertanian dan Lingkungan Jurnal Nasional Teknik Elektro dan Teknologi Informasi TRANSPUBLIKA INTERNATIONAL RESEARCH IN EXACT SCIENCES (TIRES) Jurnal Rekayasa elektrika Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Policy Brief Pertanian, Kelautan, dan Biosains Tropika Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Journal of Fisheries & Marine Jurnal Perikanan The International Journal of Remote Sensing and Earth Sciences (IJReSES)
Henry Munandar Manik
Departemen Ilmu Dan Teknologi Kelautan, Fakultas Perikanan Dan Ilmu Kelautan, IPB University, Bogor, 16680, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Mathematics Physics Social Sciences Other

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Rancang Bangun Transmitter dan Receiver untuk Sistem Komunikasi Akustik Bawah Air Henry Manik; Susilohadi Susilohadi; Billi R Kusumah
Jurnal Rekayasa Elektrika Vol 15, No 3 (2019)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1555.57 KB) | DOI: 10.17529/jre.v15i3.14498

Abstract

Since 2016 acoustic detection technology for marine resources had been developed which was relatively simple and sophisticated, namely Ocean Acoustic Waveguide Remote Sensing. The technology was useful for monitoring and quantifying underwater targets such as marine resources and the environment that can be conducted continuously, sustainable, in situ, real-time, and low cost. This research had designed an Ocean Acoustic Remote Sensing technology instrument to detect signal propagation range. The step taken in this research was to build an acoustic device system such as transmitter and receiver based on TR-103 transmitting transducer sensor and Benthos Aq-1 receiving transducer. Based on the experiment results, the transmitter and receiver designed were confrmed with the measured piezoelectric quantity specifcations. The results at open ocean in the Thousand Islands showed the detection range of transmitter signal propagation to the receiver was 100 m.
Autonomous Underwater Vehicle untuk Survei dan Pemantauan Laut Henry M. Manik; Agung D. Syakti; Jales Veva Jaya; Dony Apdillah; Steven Solikin; Angga Dwinovantyo; Rina Fajaryanti; Bagas O. Siahaan; Muhammad Sanubari
Jurnal Rekayasa Elektrika Vol 13, No 1 (2017)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1408.03 KB) | DOI: 10.17529/jre.v13i1.5964

Abstract

AUV is an unmanned submersible platform to accomplish a mission. Side-scan sonar, Conductivity Temperature Depth (CTD), and underwater video camera are usually attached on AUV. These sensors were used for identifying seawater and seabed condition. Data acquired from a survey with an AUV in Kepulauan Riau processed by Neptus software. Side-scan sonar (SSS) visualization is compared to the video image. SSS signal visualization has a unique pattern that can be identified within the video image. Different substrate structure caused different signal visualization.  The relation between the video image and SSS visualization can be used for identifying habitat benthic profile.
Teknologi Low-Frequency Acoustic untuk Identifikasi Gas Hidrat Berdasarkan Perubahan Karakter Seismik di Perairan Laut Aru M. Agung Sedayu; Henry M. Manik; Subarsyah Subarsyah
Jurnal Rekayasa Elektrika Vol 17, No 1 (2021)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1304.024 KB) | DOI: 10.17529/jre.v17i1.17867

Abstract

Gas hydrate is a type of hydrocarbon formed like crystals and is formed in the seabed sediment layer. Water temperature and pressure affected the area where gas hydrates are formed; gas hydrates are composed of gas and water elements. Gas hydrates have the potential as an alternative to current uses of oils and gasses. The identification of gas hydrates on the seabed can be detected using low-frequency acoustic, seismic technology. This research aims to identify the presence of gas hydrate in Aru Sea waters based on changes in the seismic character of the gas hydrate. The method used is seismic data processing with ProMAX software. This research uses seismic data for the 3.01 trajectory acquired by the Marine Geology Research and Development Center in 2016 in the Aru Sea. Based on the data processed, gas hydrate was detected on the 3.01 line with a depth of 5,925 meters. Gas hydrate indicator on the seabed is characterized by cutting stratigraphy, reversing its polarity, high amplitude, and shape following the seabed. 
Rancang Bangun Driver PZT dan Filtering Data Akustik Pada Sonar Aktif Adhi Kusuma Negara; Henry Manik; Susilohadi Susilohadi
Jurnal Rekayasa Elektrika Vol 18, No 2 (2022)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1052.34 KB) | DOI: 10.17529/jre.v18i2.25244

Abstract

Acoustic transducer is a source level component in the sonar equation that is indispensable as an underwater acoustic energy source, with a certain emission pattern called beamforming. In this research, we designed the construction of a driver circuit to trigger a piezoelectric (PZT) transducer to produce an acoustic energy beam for the purpose of detecting underwater targets. The manufacture of an acoustic driver with a simple working principle has been carried out to provide transmit (TX) and receive (RX) commands. The RX module will receive the acoustic signal from the TX and the results are recorded for analysis. The mixing of the information signal with noise makes the information obtained cannot be directly verified so that a signal processing process is needed to be able to separate the information signal and noise. Calibration using a spherical target was carried out to determine the detection results and the acoustic intensity level. Signal analysis and visualization methods use Fast Fourier Transform (FFT) and wavelets.
Pemrosesan Sinyal Data Sub-bottom Profiler Substrat Dasar Perairan Selat Lembeh Steven Solikin; Henry M. Manik; Sri Pujiyati; Susilohadi Susilohadi
Jurnal Rekayasa Elektrika Vol 13, No 1 (2017)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2591.369 KB) | DOI: 10.17529/jre.v13i1.6060

Abstract

An accurate mapping of ocean seabed is needed to answer the challenges faced by the marine scientist today. Sub-bottom profiler present as one of the acoustics system which used to describe the sediment layer profile of the ocean bottom, as well as the thickness of the layer and the stratigraphy. The purpose of this research is to describe the 2D profile and to determine the value of the reflection coefficient of the sediment layers in Lembeh Strait, North Sulawesi. The reflection coefficient is necessary to be analyzed related to the seabed sediment grain size and type. The data acquisition carried out using Syqwest Stratabox sub-bottom profiler with the frequency of 10 kHz. FFT signal processing and bandpass filter are applied to relieve noise from main signals as well as to get better results. The results of data processing show that seafloor sediments have a value of the surface reflection coefficients which ranged between 0.1168 until 0.7938 with type iron smooth sand.
Combining Two Classification Methods for Predicting Jakarta Bay Seabed Type Using Multibeam Echosounder Data Steven Solikin; Angga Dwinovantyo; Henry Munandar Manik; Sri Pujiyati; Susilohadi Susilohadi
Journal of Applied Geospatial Information Vol 7 No 2 (2023): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v7i2.6363

Abstract

Classification of seabed types from multibeam echosounder data using machine learning techniques has been widely used in recent decades, such as Random Forest (RF), Artificial Neural Network (ANN), Support Vector Machine (SVM), and Nearest Neighbor (NN). This study combines the two most frequently used machine learning techniques to classify and map the seabed sediment types from multibeam echosounder data. The classification model developed in this study is a combination of two machine learning classification techniques, namely Support Vector Machine (SVM) and K-Nearest Neighbor (K-NN). This classification technique is called SV-KNN. Simply, SV-KNN adopts these two techniques to carry out the classification process. The SV-KNN technique begins with determining test data by specifying support vectors and hyperplanes, as was done on the SVM method, and executes the classification process using the K-NN. Clay, fine silt, medium silt, coarse silt, and fine sand are the five main classes produced by SVKNN. The SV-KNN method has an overall accuracy value of 87.38% and a Kappa coefficient of 0.3093.
Pemrosesan Citra Side Scan Sonar untuk Pemetaan Dasar Laut Pelabuhan Benoa Henry M. Manik; Liva Junaedi; Gentio Harsono
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 5 No 2: Mei 2016
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1151.93 KB)

Abstract

Detection of seabed can be obtained with a high resolution using side scan sonar instrument. This instrument also provides geospatial information of underwater target. This paper aims are to visualize and to interpret side scan sonar imagery both qualitatively and quantitatively, to analyse acoustic backscatter of seabed, and to perform processing characteristics of sonar signal using wavelet transform. Side scan sonar data are processed through the geometric correction to establish the actual position in the image pixel. The location of research study is Benoa Port, Bali Indonesia. The sonar surveys consist of several track lines survey with operating frequency of 325 kHz. The seabed texture consists of gravel with backscatter value range from 13824 mV to 23680 mV and 8832 mV to 13312 mV for sand, sediment ripples of 17792 mV to 32640 mV, dredging seabed of 8000 mV to 19330 mV, texture of mound area has 32640 mV, and rocky outcrop has 14845 mV to 23552 mV. The results analysis of the signal characteristics using wavelet transform generally defines the location of peaks and valleys of the backscatter amplitude for each texture. The peak magnitude of each texture in red color indicates the intensity of the seabed texture is more rough, complex and solid, while the seabed texture is relatively flat and soft physic material has a low magnitude the value in blue color.
Autonomous Underwater Vehicle untuk Survei dan Pemantauan Laut Henry M. Manik; Agung D. Syakti; Jales Veva Jaya; Dony Apdillah; Steven Solikin; Angga Dwinovantyo; Rina Fajaryanti; Bagas O. Siahaan; Muhammad Sanubari
Jurnal Rekayasa Elektrika Vol 13, No 1 (2017)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v13i1.5964

Abstract

AUV is an unmanned submersible platform to accomplish a mission. Side-scan sonar, Conductivity Temperature Depth (CTD), and underwater video camera are usually attached on AUV. These sensors were used for identifying seawater and seabed condition. Data acquired from a survey with an AUV in Kepulauan Riau processed by Neptus software. Side-scan sonar (SSS) visualization is compared to the video image. SSS signal visualization has a unique pattern that can be identified within the video image. Different substrate structure caused different signal visualization.  The relation between the video image and SSS visualization can be used for identifying habitat benthic profile.
Rancang Bangun Driver PZT dan Filtering Data Akustik Pada Sonar Aktif Adhi Kusuma Negara; Henry Manik; Susilohadi Susilohadi
Jurnal Rekayasa Elektrika Vol 18, No 2 (2022)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v18i2.25244

Abstract

Acoustic transducer is a source level component in the sonar equation that is indispensable as an underwater acoustic energy source, with a certain emission pattern called beamforming. In this research, we designed the construction of a driver circuit to trigger a piezoelectric (PZT) transducer to produce an acoustic energy beam for the purpose of detecting underwater targets. The manufacture of an acoustic driver with a simple working principle has been carried out to provide transmit (TX) and receive (RX) commands. The RX module will receive the acoustic signal from the TX and the results are recorded for analysis. The mixing of the information signal with noise makes the information obtained cannot be directly verified so that a signal processing process is needed to be able to separate the information signal and noise. Calibration using a spherical target was carried out to determine the detection results and the acoustic intensity level. Signal analysis and visualization methods use Fast Fourier Transform (FFT) and wavelets.
Teknologi Low-Frequency Acoustic untuk Identifikasi Gas Hidrat Berdasarkan Perubahan Karakter Seismik di Perairan Laut Aru M. Agung Sedayu; Henry M. Manik; Subarsyah Subarsyah
Jurnal Rekayasa Elektrika Vol 17, No 1 (2021)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v17i1.17867

Abstract

Gas hydrate is a type of hydrocarbon formed like crystals and is formed in the seabed sediment layer. Water temperature and pressure affected the area where gas hydrates are formed; gas hydrates are composed of gas and water elements. Gas hydrates have the potential as an alternative to current uses of oils and gasses. The identification of gas hydrates on the seabed can be detected using low-frequency acoustic, seismic technology. This research aims to identify the presence of gas hydrate in Aru Sea waters based on changes in the seismic character of the gas hydrate. The method used is seismic data processing with ProMAX software. This research uses seismic data for the 3.01 trajectory acquired by the Marine Geology Research and Development Center in 2016 in the Aru Sea. Based on the data processed, gas hydrate was detected on the 3.01 line with a depth of 5,925 meters. Gas hydrate indicator on the seabed is characterized by cutting stratigraphy, reversing its polarity, high amplitude, and shape following the seabed. 
Co-Authors . Susilohadi Adhi Kusuma Negara Adi Purwandana Adi Purwandana Aditya P. Sidiq Adrianus, Aldwin Agung D. Syakti Agus Atmadipoera Agustina Sartika Yos Ekaristi Manik Agustinus Agustinus Alajuri, M Hasbi Sidqi Alfrida Romauli Amanda Astri Pratiwi Febrianti Anang P. Adi Anang Prasetia Adi Anang Prasetia Adi Andi Achmadi Andi Yaodi Nurani Yamin Angga Dwinovantyo Angga Dwinovantyo Ari Wahyudi Ari Wahyudi Asep Ma'mun Asep Ma’mun Asep Priatna Asmoro, Nuki Widi Augy Syahailatua Azhari, Ferian Bagas O. Siahaan Bernawis, Lamona Irmudyawati Billi R Kusumah Billi Rifa Kusumah Brojonegoro, Irsan S Catur Purwanto, Catur Choirul Umam, Choirul Christian Nugroho Dadang Handoko Deddy Bakhtiar Djoko Hartoyo Domey Moniharapon Dony Apdillah Dwi Charnila Dwiadji Gultom Edi Kusmanto Edy Hartulistiyoso Elson, La Faaris, Said M Fahrulian Fahrulian Fahrulian Fahrulian Fahrulian Fahrulian Fathkhurozak Yunanda Rifai Firdaus, Randi Fredrich Simanungkalit Gentio Harsono Gentio Harsono Handoko, Dadang Haqqu Ramdhani Hargiani, Fransisca Xaveria Hasan, Rozaimi Che Hascaryo, Anom Puji Hawari, Aqil Hawis H Madduppa Hendra Jayanto Hendra Jayanto Henry Andriadi Hestirianoto, Totok Hestirianoto, Totok Hestirianoto Hollanda Arief Kusuma Husal, Siddiq Husaini I Wayan Sumardana Eka Putra Imam Mudita Indah Nurkomala Indra Jaya Indra Jaya Indra Jaya Indra Jaya Indra Jaya Indra Jaya Irsan Soemantri Brodjonegoro Ita Wulandari Jales Veva Jaya Johar Setiyadi Junaedi, Liva Kang, Myounghee Karlisa Priandana Khairul Amri Kirana, Widiah Dwi Krisna Rendi Awalludin Kurniawan , Muhammad Aziz Kurniawan, Muhammad Azis Kusdiana, Dias La Elson, La Elson Lalita, Rayi Khasanah Larasati, Oktavira Dwi Demia Lazuardi, Muhammad Nur Riza Lili Somantri Liva Junaedi M. Agung Sedayu M.Rizal Keulana Manik, Agustina Sartika Muhamad Yulianto Muhammad Farhan Muhammad Firdaus MUHAMMAD ILHAM Muhammad Sanubari Muhammad Siddiq Sangadji Muhammad Zainuddin Lubis Muhammad Zainuddin Lubis Muhammad Zulfikar Muharrom, Eka Yudha Myounghee Kang Nainggolan, Tumpal Bernhard Napitupulu, Gandhi Napitupulu, Moses Nazar Nurdin Negara, Adhi K. Nur Fitria, Hanita Pamalik, Aulia Ranggi Prasetiawan, Agung Prihantoro, Andi Exyas Pujiyati, Sri Pujiyati Purwandana , Adi Putra, I Wayan Sumardana Eka R. Yanuar H. P Rabbani, Mochamad Rafif Radjawane, Ivonne Milichristi Rahmat, Ayi Rahmatullah, Amri Ratna Juita Sari Rina Fajaryanti Rina Nurkhayati Rina Zuraida Rizqi Ayu Farihah, Rizqi Ayu RR. Ella Evrita Hestiandari Saifur Rohman Setiyadi, Johar Setyanto, Agus Situmorang, Edriyan Sofyatuddin Karina Sri Pujiyati Steven Solikin Subarsyah Subarsyah Subarsyah Subarsyah Subarsyah Subarsyah Suhengki, Gemma Cahya Hafifah Suhengki Suhengki, Suhengki Sukoco, Nawanto Budi Sumantri, Willi Supriyanto, Taufiq Susilo Hadi Susilohadi Susilohadi Susilohadi Susilohadi Susilohadi Susilohadi Susilohadi Susilohadi Susilohadi Susilohadi Susilohadi Syahrin, Win Alfi Syahrul Purnawan Syahrul Purnawan Teguh Arif Pianto Tri Aji Tri Nur Sujatmiko Try Febrianto Tumpal B. Nainggolan Tumpal Bernhard Nainggolan Udrekh Udrekh Vincentius P Siregar Widodo S Pranowo Widodo Setiyo Pranowo Wijopriono Windra, Alivio Winjaniatun, Siti Novrianti Yoga Prihantoro Yoga Prihantoro Yulinar Firdaus, Yulinar Zahran, Hafizh