Application of RADAR Corner Reflectors for the Detection of Small Vessels in Synthetic Aperture Radar

Stastny, John; Cheung, Sparta; Wiafe, George; Agyekum, Kwame Adu; Greidanus, H.

doi:10.1109/jstars.2014.2359797

Cited by 19 publications

(8 citation statements)

References 10 publications

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“…Teknologi satelit [1] dan radar [2] juga telah dilakukan, akan tetapi masih memiliki kendala utama diantaranya efisiensi biaya yang tinggi dan ukuran perangkat yang digunakan juga relatif cukup besar. Solusi yang paling efektif adalah dengan memanfaatkan sistem komunikasi pemancar stasiun radio terdekat yang berada di daratan.…”

Section: Pendahuluanunclassified

Akses Internet di Wilayah Laut dan Kepulauan Menggunakan WiFi Long Range

Nantan

Zainuddin

Wardi

2018

jpe

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Sebagai negara kepulauan terbesar di dunia, Indonesia memiliki sumber daya alam yang besar di wilayah laut dan kepulauan. Wilayah lautan dan kepulauan yang ditetapkan penggunaannya bagi berbagai sektor kegiatan membutuhkan pemantauan dari berbagai aspek. Kegiatan pemantauan kapal sangat bermanfaat dalam aktifitas pelayaran untuk mengetahui informasi kapal yang sedang berlayar sehubungan dengan kondisi lapangan yang ada utamanya saat cuaca buruk. Untuk melakukan kegiatan pemantauan kapal pada wilayah laut diperlukan konektivitas internet yang dapat menjangkau seluruh wilayah laut dan kepulauan. Penelitian ini menyajikan pemanfaatan teknologi Wireless Fidelity (Wi-Fi) Long Range pada frekuensi bebas 2.4 GHz dalam bidang maritim untuk mendukung sistem monitoring kapal yang sedang berlayar pada wilayah laut dan kepulauan sekitar yang tidak mendapat layanan internet. Penggunaan Wi-Fi Long Range pada frekuensi 2.4 GHz dipakai sebagai perpanjangan koneksi layanan data dalam bidang komunikasi maritim yang diperoleh dari Base Tranceiver Station (BTS) terdekat. Pembaruan sistem ini terletak pada sistem Wi-Fi jarak jauh yang dipasang secara tetap di wilayah kepulauan atau pada buoy yang berada di lautan sehingga layanan internet dapat dimanfaatkan secara bersamaan oleh kapal-kapal khususnya kapal nelayan yang berada di sekitarnya untuk mengirimkan informasi penting yang berkaitan dengan pelayaran seperti posisi kapal melalui Global Positioning System (GPS) pada Mobile Phone (MS). Sistem yang diimplementasikan terbukti mampu memperpanjang koneksi layanan data sejauh 8 km.

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Section: Pendahuluanunclassified

Akses Internet di Wilayah Laut dan Kepulauan Menggunakan WiFi Long Range

Nantan

Zainuddin

Wardi

2018

jpe

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“…A new SAR technique called CopSAR (coprime SAR) enables the identification of ships within a maritime environment, by increasing the range swath without the loss of the geometric resolution (Di Martino and Iodice, 2014). In addition, the detection of small vessel may be improved by using corner reflectors, as proposed in (Stastny et al, 2014). An operational ship monitoring system based on SAR processing is presented in (Margarit et al, 2009).…”

Section: Sar For Vessel Surveillancementioning

confidence: 99%

Sentinel-1/2 Data for Ship Traffic Monitoring on the Danube River

Negula¹,

Poenaru²,

Olteanu³

et al. 2016

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:After a long period of drought, the water level of the Danube River has significantly dropped especially on the Romanian sector, in July-August 2015. Danube reached the lowest water level recorded in the last 12 years, causing the blockage of the ships in the sector located close to Zimnicea Harbour. The rising sand banks in the navigable channel congested the commercial traffic for a few days with more than 100 ships involved. The monitoring of the decreasing water level and the traffic jam was performed based on Sentinel-1 and Sentinel-2 free data provided by the European Space Agency and the European Commission within the Copernicus Programme. Specific processing methods (calibration, speckle filtering, geocoding, change detection, image classification, principal component analysis, etc.) were applied in order to generate useful products that the responsible authorities could benefit from. The Sentinel data yielded good results for water mask extraction and ships detection. The analysis continued after the closure of the crisis situation when the water reached the nominal level again. The results indicate that Sentinel data can be successfully used for ship traffic monitoring, building the foundation of future endeavours for a durable monitoring of the Danube River.

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“…The West African ocean region is presently the leading hotspot for global piracy activities, with the focus having shifted from the Indian Ocean in recent years [ 4 ]. Earth observation data can be used to monitor vessel activities and to enhance maritime security in the West African subregion [ 4 , 35 ]. Coastal pollution from thermal plants, oil spills, plastics, and other wastes have become major environmental issues of the recent decade [ 1 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Satellite Oceanography-Driven Research in West Africa: a Case Study of Capacity Development in an Underserved Region

Nyadjro

Arbic

Buckingham

et al. 2021

Remote Sens Earth Syst Sci

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Marine business and resources play a major role in the economics and way of life in coastal West African countries. Such countries see great profitability from their marine resources while also facing challenges that come with a bordering sea. Despite this fact, there has been limited research into the optimal way for West African Coastal States to coexist with, and sustainably use their marine resources, a research deficit that is mainly due to a lack of infrastructure for in-situ work, lack of capacity development, and comprehensive datasets to undertake oceanographic research. The Coastal Ocean Environment Summer School in Ghana (COESSING; www.coessing.org ) was developed to help meet some of these challenges. Each summer since 2015, ocean scientists (e.g., biologists, chemists, physicists, hydrologists) from the USA and Europe have collaborated with West African colleagues to lead a week-long intensive summer school in Accra, Ghana, alternating in location between the Regional Maritime University and the University of Ghana. The school receives in excess of 100 participants drawn from universities, government agencies, and the private sector organizations, mainly from Ghana and neighboring Liberia, Nigeria, Togo, and Benin, among others. The format of the school includes morning lectures, afternoon field trips, and hands-on laboratory exercises and one-on-one coaching of students. Important to the COESSING program is the satellite oceanography component which introduces participants to the extensive and often free, remotely sensed oceanographic datasets. Participants develop skills that allow them to access, process, and analyze these datasets in order to better understand regional oceanographic phenomena, such as upwelling, pollution, habitat characterization, sea level rise, and coastal erosion. Following the school, facilitators keep in touch with program participants, helping them acquire and analyze data for their studies, dissertations, and often graduate school applications, etc. In summary, schools such as COESSING are critical not only for science in the region but for the global ocean community as such training develops eager, bright minds while leading to improved regional observing and modeling strategies in severely under-sampled seas. Here, we describe a unique case in which satellite oceanography has led to such outcomes for countries bordering the Gulf of Guinea, West Africa.

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Application of RADAR Corner Reflectors for the Detection of Small Vessels in Synthetic Aperture Radar

Cited by 19 publications

References 10 publications

Akses Internet di Wilayah Laut dan Kepulauan Menggunakan WiFi Long Range

Akses Internet di Wilayah Laut dan Kepulauan Menggunakan WiFi Long Range

Sentinel-1/2 Data for Ship Traffic Monitoring on the Danube River

Enhancing Satellite Oceanography-Driven Research in West Africa: a Case Study of Capacity Development in an Underserved Region

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