Analisis Angular Resolution Dan Range Resolution Pada Multibeam echosounder R2 Sonic 2020 Di Pelabuhan Tanjung Perak Surabaya

Oktavia, Rr. Nanda Azizah (2020) Analisis Angular Resolution Dan Range Resolution Pada Multibeam echosounder R2 Sonic 2020 Di Pelabuhan Tanjung Perak Surabaya. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pemilihan multibeam echosounder harus memperhatikan beberapa faktor sebelum digunakan, hal ini dapat dilihat dari spesifikasinya, seperti frekuensi dan swath angle yang dapat diatur. Hal tersebut dikarenakan agar penggunaan multibeam lebih efisien dan dapat digunakan dalam keadaan apapun. Pada penelitian ini akan diletakkan dua objek berbentuk kubus dengan ukuran sisi berturut-turut 30 cm dan 50 cm, kedua objek diletakkan pada kedalaman laut yang berbeda. Hal tersebut dilakukan agar mengetahui kemampuan Multibeam echosounder dalam mendeteksi objek (object detection) yang berukuran kecil. Penelitian ini mengambil data secara langsung pada 15 November 2019. Multibeam echosounder memiliki fitur selectable frequency dan selectable swath angle. Frekuensi yang digunakan saat akuisisi data yaitu 400 kHz dan swath angle yang digunakan yaitu 110°. Kedua objek kubus berencana diletakkan pada koordinat 692.161,26; 9.204.979,67 m dan 691.927,45; 9.204.997,04 m dan memiliki jarak sejauh 234,48 m. Pada saat pengolahan, objek berukuran 50 cm ditemukan pada koordinat 692.014,80; 9.204.975,60 m dikedalaman 24,93 m dan objek kubus 30 cm ditemukan pada koordinat 692.225,50; 9.205.023,43 m dikedalaman 23,14 m. Kedua objek tersebut memiliki jarak sejauh 216,05 m.Pengukuran dimensi objek terdiri dari dua bagian, yaitu bagian sisi atas (panjang dan lebar) dan sisi tinggi. Pengukuran dimensi objek kubus 30 cm dengan sisi atas dan sisi tinggi berturut-turut memiliki nilai RMS Error sebesar 0,019 m dan 0,024 m. Pada pengukuran dimensi objek kubus 50 cm dengan sisi atas dan sisi tinggi berturut-turut memiliki nilai RMS Error sebesar 0,008 m dan 0,014 m. Multibeam echosounder R2 Sonic 2020 memiliki nilai resolusi spasial, yaitu resolusi jarak dan resolusi sudut. Pada perhitungan dipenelitian ini, didapatkan nilai resolusi jarak sebesar 0,013 m dan nilai resolusi sudut sebesar 0,034 m. ==================================================================================================================== Utilizing a multibeam echosounder considers several factors based on its specifications, such as selectable frequency and selectable swath angle. It is done for multibeam efficiency and being usable in any situation. In this research, 30 cm and 50 cm cuboid objects will be placed at different depths. The purpose is to determine the ability of Multibeam echosounder in detecting small objects. Data is taken on November 15th, 2019. Multibeam echosounder R2 Sonic 2020 has a selectable frequency and selectable swath angle features. The frequency used for data acquisition is 400 kHz, and the swath angle used is 110°. The two cube objects are placed at coordinates 692,161.26; 9,204,979.67 m and 691,927.45; 9,204,997.04 m and have a distance of 234.49 m. Object 50 cm was detected in coordinates 692,014.80; 9,204,975.60 m at a depth of 24.93 m and objects 30 cm cube was detected in coordinates 692,225.50; 9,205,023.43 m at a depth of 23.14m. Both of these objects have a distance of 216.05 m. Measurement of object dimensions is divided into two parts, the upper side (length and width) and the height side. Measuring dimensions of a 30 cm cube object with the upper and height sides respectively have an RMS Error value of 0.0198m and 0.0245m. Measuring dimensions of 50 cm cube object with the upper and height side respectively have an RMS Error value 0.008m and 0.014m. Multibeam echosounder R2 Sonic 2020 has spatial resolution values, which are range resolution and angular resolution. This study’s result obtained a value of range resolution of 0.012m and an angle resolution value of 0.033m.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Range Resolution, Angular Resolution, Object detection, Multibeam Echosounder, Range Resolution, Angular Resolution, Object Detection, Multibeam Echosounder.
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
G Geography. Anthropology. Recreation > G Geography (General) > G109.5 Global Positioning System
G Geography. Anthropology. Recreation > G Geography (General) > G70.212 ArcGIS. Geographic information systems.
G Geography. Anthropology. Recreation > GC Oceanography
T Technology > TC Hydraulic engineering. Ocean engineering
T Technology > TC Hydraulic engineering. Ocean engineering > TC203.5 Coastal engineering
Divisions: Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geomatics Engineering > 29202-(S1) Undergraduate Thesis
Depositing User: Rr. Nanda Azizah Oktavia
Date Deposited: 13 Aug 2020 04:08
Last Modified: 13 Aug 2020 04:08
URI: http://repository.its.ac.id/id/eprint/77747

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