Development of radar cross section analysis system of naval ships

Kim, Kookhyun; Kim, Jin-Hyeong; Choi, Tae-Muk; Cho, Dae‐Seung

doi:10.2478/ijnaoe-2013-0075

Cited by 5 publications

(4 citation statements)

References 7 publications

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“…Radar merupakan suatu sistem elektromagnetik yang digunakan untuk mendeteksi, memperkirakan, dan menemukan objek seperti pesawat atau kapal. Radar bekerja dengan menggunakan gelombang radio yang dipantulkan dari permukaan objek [3].…”

Section: Radarunclassified

Evaluasi Desain Kapal Pengawas Perikanan Berbasis Radar Cross Section untuk Mengurangi Deteksi Radar di Wilayah Laut Natuna Utara

Ganefiansyah Murdiyantono,

Kurniawati

2023

JTITS

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Sebagai negara kepulauan, Indonesia bersengketa dengan negara lain terkait klaim hak berdaulat di Laut Natuna Utara. Maka dari itu, diperlukan strategi pengawasan yang tepat untuk dapat mencegah dan memerangi illegal fishing di Laut Natuna Utara agar sumber daya ikan Indonesia dapat dilindungi dan berkelanjutan, serta tegaknya kedaulatan Indonesia. Sejak penemuannya, radar telah sangat memengaruhi semua domain peperangan militer, termasuk peperangan laut. Radar banyak digunakan di platform militer sebagai alat untuk mendeteksi, pelacakan, dan klasifikasi musuh. Radar cross section (RCS) adalah ukuran kekuatan reflektif suatu objek, untuk menentukan seberapa dini target dapat dideteksi. Reduksi RCS dari suatu kapal dapat menghambat deteksi radar kapal musuh. Pada desain awal Kapal Pengawas Perikanan tipe C, didapatkan nilai radar cross section sebesar 31 dBsm menggunakan metode numerik. Dilakukan evaluasi terhadap bentuk deckhouse untuk mengurangi luasan pantulan radar. Pada tahap evaluasi ini, didapatkan nilai radar cross section sebesar 30.6 dBsm. Kemudian dilakukan evaluasi terhadap bentuk lambung, bentuk lambung yang digunakan sebelumnya diubah menjadi bentuk inverted bow untuk mengurangi pantulan radar di daerah bow. Pada evaluasi lambung, didapatkan nilai radar cross section sebesar 30.4 dBsm. Kemudian dilakukan evaluasi terhadap pelapisan Radar Absorbing Material (RAM) pada deckhouse. Material yang digunakan adalah material komposit bernama BAM/PET. Pada evaluasi pelapisan RAM pada deckhouse didapatkan nilai radar cross section sebesar 1.9 dBsm. Dilakukan pelapisan RAM pada kapal awal sebelum dilakukan evaluasi deckhouse dan lambung, hasil pelapisan RAM pada kapal awal menunjukkan nilai radar cross section sebesar 3.7 dBsm. Nilai tersebut sudah memenuhi kriteria radar cross section kapal. Sehingga tidak perlu dilakukan evaluasi terhadap bentuk deckhouse dan lambung, cukup melakukan pelapisan RAM pada kapal untuk mengurangi nilai radar cross section pada kapal. Hasil evaluasi tersebut kemudian digunakan untuk mendesain Lines Plan, General Arrangement, dan 3D Model.

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Section: Radarunclassified

Evaluasi Desain Kapal Pengawas Perikanan Berbasis Radar Cross Section untuk Mengurangi Deteksi Radar di Wilayah Laut Natuna Utara

Ganefiansyah Murdiyantono,

Kurniawati

2023

JTITS

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“…Like a laser beam, if the light is reflected on a mirror, if there is an oblique angle of reflection, the light will not return to the laser-emitting source itself. So that a certain angle can be used as a logical parameter for the construction of ships with stealth or stealth capabilities [6,7].…”

Section: The Construction Of Stealth Radar Cross Section Reduction (Rcs)mentioning

confidence: 99%

Design Stealth Fast Attack Vehicle (SFAV) 18 Meters Using Numerical Method as Coastal Patrol Vessels

Kusuma,

Kusdiana,

Syaifi

et al. 2023

IJOCE

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The design of the 18 Meter Stealth Fast Attack Vehicle (SFAV) with Maxsurf software and the Savitsky method as a coastal patrol vessel is a fast ship that has stealth capabilities that can be used as a coastal patrol vessel area 12 NM to supervise fishing vessels so that fishing and marine resources do not damage the environment such as the use of tiger trawls and marine bombs. The ship model resistance and stability are analyzed using the numerical software Maxsurf Modeller Advanced V8i. Lines plan and general arrangement using AutoCAD software. Model analysis, the design of the SFAV Interceptor Vehicle uses the spiral design method, while the prediction of the resistance value uses the Savitsky preplanning and planning methods. Ship stability uses standardized values issued by IMO, which can be applied to the Maxsurf Stability Advanced V8i software. The analysis results of resistance prediction software and numerical successively 43.416 kN, 45.526 kN, with a difference of 4.6%. The stability analysis is predicted using heel angle model analysis on Maxsurf stability software in various conditions. The results meet IMO standards and capable of sea stage 4. The existence of SFAV ships will help security patrols to protect the coastal area.

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“…The most practical techniques for designing the integrated mast with a low RCS include shaping techniques and radar absorbing materials (RAM)/radar absorbing structures (RAS). Extensive studies have been conducted to develop RAM/RAS for RCS reduction [6][7][8][9][10][11][12][13][14][15][16][17]. Composite radar absorbers have been fabricated and measured based on the composite material [6][7][8], the metasurface [9,10] and the reactive Salisbury screen [11].…”

Section: Introductionmentioning

confidence: 99%

“…Composite radar absorbers have been fabricated and measured based on the composite material [6][7][8], the metasurface [9,10] and the reactive Salisbury screen [11]. Furthermore, the RCS of naval ships covered with RAM was numerically analyzed to evaluate its stealth performance [12][13][14][15][16] and the RCS of an integrated mast coated with multi-layered RAM was also analyzed [17]. However, they usually have a narrow absorption bandwidth and are too bulky and fragile in operational environments, which incurs astronomical costs for its ongoing maintenance.…”

Section: Introductionmentioning

confidence: 99%

Shape Optimization of an Integrated Mast for RCS Reduction of a Stealth Naval Vessel

et al. 2021

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In this paper, we analyze the radar cross section (RCS) of an integrated mast and present the optimized mast shape for RCS reduction. The RCS is simulated using commercial electromagnetic (EM) software based on the shooting and bouncing rays (SBR) method and the diffraction fields at the edges are also considered. Threat frequencies, threat regions and cardinal points are first defined considering the operational environments of a naval vessel. We calculate and analyze the RCS of the integrated mast in terms of the threat frequencies, the shapes of the integrated mast and the direction and polarization of the incident waves. The shape of the integrated mast is optimized based on the shaping technique. The optimized mast has low RCS properties in the primary threat sectors except for the exceptional angle regions.

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Development of radar cross section analysis system of naval ships

Cited by 5 publications

References 7 publications

Evaluasi Desain Kapal Pengawas Perikanan Berbasis Radar Cross Section untuk Mengurangi Deteksi Radar di Wilayah Laut Natuna Utara

Evaluasi Desain Kapal Pengawas Perikanan Berbasis Radar Cross Section untuk Mengurangi Deteksi Radar di Wilayah Laut Natuna Utara

Design Stealth Fast Attack Vehicle (SFAV) 18 Meters Using Numerical Method as Coastal Patrol Vessels

Shape Optimization of an Integrated Mast for RCS Reduction of a Stealth Naval Vessel

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