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A Two-Stage Framework for Sensor Selection and Geolocation for eVTOL Emergency Localization Using HF Skywaves [PDF]
SensorsHigh-Frequency (HF) geolocation is crucial for emergency search and rescue operations and for re-geolocation of missing targets. This paper proposes a two-stage (Receiver selection then geolocation with Random Spatial Spectrum (RSS)) framework with HF ...
Xijun Liu +4 more
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Computer Communication Review, 2011 The most widely used technique for IP geolocation consists in building a database to keep the mapping between IP blocks and a geographic location. Several databases are available and are frequently used by many services and web sites in the Internet. Contrary to widespread belief, geolocation databases are far from being as reliable as they claim.
Steve Uhlig +2 more
exaly +4 more sources
Geolocation Accuracy Assessment of Himawari-8/AHI Imagery for Application to Terrestrial Monitoring
Remote Sensing, 2020 Recent advancements in new generation geostationary satellites have facilitated the application of their datasets to terrestrial monitoring. In this application, geolocation accuracy is an essential issue because land surfaces are generally heterogeneous.
Yuhei Yamamoto +2 more
exaly +3 more sources
Assessment of the NOAA S-NPP VIIRS Geolocation Reprocessing Improvements
Remote Sensing, 2017 Long-term time series analysis requires consistent data records from satellites. The Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the Suomi National Polar orbiting Partner (S-NPP) satellite launched in 2011 requires a major effort to produce
Wenhui Wang +2 more
exaly +3 more sources
Early ICESat-2 on-orbit Geolocation Validation Using Ground-Based Corner Cube Retro-Reflectors
Remote Sensing, 2020 The Ice, Cloud and Land Elevation Satellite-2 (ICESat-2), an Earth-observing laser altimetry mission, is currently providing global elevation measurements.
Lori A Magruder +2 more
exaly +3 more sources
Sentinel-1A Product Geolocation Accuracy: Commissioning Phase Results
Remote Sensing, 2015 Sentinel-1A (S1A) is an Earth observation satellite carrying a state-of-the-art Synthetic Aperture Radar (SAR) imaging instrument. It was launched by the European Space Agency (ESA) on 3 April 2014. With the end of the in-orbit commissioning phase having
David Small +2 more
exaly +3 more sources
Adaptive IP geolocation framework for target network scenarios
网络与信息安全学报, 2023 The target location can be determined through IP geolocation, serving as a vital foundation for location-based services.Researchers have proposed various IP geolocation algorithms with different implementation principles to cater to different network ...
Shuodi ZU, Shichang DING, Fuxiang YUAN, Xiangyang LUO
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 The scatterometer onboard the China-France Oceanography Satellite (CFOSAT) is the first rotating fan beam scatterometer (CSCAT) in operation. It is used to measure the ocean surface wind fields over a large observation swath.
Kuo Zhang +3 more
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ICESat‐2 Pointing Calibration and Geolocation Performance
Earth and Space Science, 2021 ICESat‐2 science requirements are dependent on the accurate real‐time pointing control (i.e., geolocation control) and postprocessed geolocation knowledge of the laser altimeter surface returns. Prelaunch pointing alignment errors and postlaunch pointing
S. B. Luthcke +7 more
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Remote Sensing, 2023 Passive microwave (PMW) sensors are popularly applied to Earth observations. However, the satellite PMW radiometer data sometimes have non-negligible errors in geolocation. Coastline inflection methods (CIMs) are widely used to improve geolocation errors
Zhuoqi Chen +7 more
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