Detecting Ships in the New Zealand Exclusive Economic Zone: Requirements for a Dedicated SmallSat SAR Mission
نویسندگان
چکیده
The performance tradeoffs of a smallsat synthetic aperture radar (SAR) system for maritime surveillance in the coastal waters New Zealand are investigated. lower costs platforms allow constellation SAR satellites that can be launched from using an existing local launch service provider. minimum image quality necessary to achieve desired detection is determined X-band satellite data. specified terms noise-equivalent sigma zero (NESZ) and resolution. It was found resolution cell 4 m 2 NESZ -1.7 dB sufficient detect small fishing vessels with probability 0.5, while maintaining false alarm below 10 xmlns:xlink="http://www.w3.org/1999/xlink">-10 . These requirements translated into preliminary design.
منابع مشابه
A New Method for Detecting Ships in Low Size and Low Contrast Marine Images: Using Deep Stacked Extreme Learning Machines
Detecting ships in marine images is an essential problem in maritime surveillance systems. Although several types of deep neural networks have almost ubiquitously used for this purpose, but the performance of such networks greatly drops when they are exposed to low size and low contrast images which have been captured by passive monitoring systems. On the other hand factors such as sea waves, c...
متن کاملThe Marine Fisheries in Bulgaria's Exclusive Economic Zone, 1950–2013
1 Fisheries Faculty, University of Istanbul, Istanbul, Turkey, 2 Sea Around Us, Global Fisheries Cluster, University of British Columbia, Vancouver, BC, Canada, 3 Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy, 4 Institute of Oceanology of Bulgarian Academy of Science, Varna, Bulgaria, 5 Laboratory of Marine Ecology, Institute of Biodiversity and Ecosystem Res...
متن کاملSpatio-temporal distribution of off-shore ships in the Pars Special Economic Energy Zone based on satellite imagery
Special Economic Zones (SEZs) are areas controlled by specific legislations so as toattain economic prosperity. These zones are commonly established and controlled bygovernment officials and are primarily characterized by growing population and developingtransport infrastructure. One relevant case is the Pars Special Economic Energy Zone(PSEEZ) situated in the south of Iran, on the northern sho...
متن کاملDemonstration of a New Smallsat Launch Vehicle: The Orbital/Suborbital Program (OSP) Space Launch Vehicle Inaugural Mission Results
The United States Air Force and Orbital Sciences Corporation (Orbital) completed development and demonstration of a new low cost space launch vehicle for launching small satellites using surplus Minuteman II rocket motors melded with commercial launch vehicle technology. The Orbital Suborbital Program Space Launch Vehicle (OSPSLV, aka OSP Minotaur) successfully achieved all mission objectives w...
متن کاملa time-series analysis of the demand for life insurance in iran
با توجه به تجزیه و تحلیل داده ها ما دریافتیم که سطح درامد و تعداد نمایندگیها باتقاضای بیمه عمر رابطه مستقیم دارند و نرخ بهره و بار تکفل با تقاضای بیمه عمر رابطه عکس دارند
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
سال: 2021
ISSN: ['2151-1535', '1939-1404']
DOI: https://doi.org/10.1109/jstars.2021.3062858