Results 21 to 30 of about 53,424 (245)

Finding and Analyzing Evil Cities on the Internet [PDF]

open access: yes, 2011
IP Geolocation is used to determine the geographical location of Internet users based on their IP addresses. When it comes to security, most of the traditional geolocation analysis is performed at country level.
Moura, Giovane C.M.   +2 more
core   +5 more sources

AN IMPROVED METHOD OF AGM FOR HIGH PRECISION GEOLOCATION OF SAR IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
In order to take full advantage of SAR images, it is necessary to obtain the high precision location of the image. During the geometric correction process of images, to ensure the accuracy of image geometric correction and extract the effective mapping ...
G. Zhou   +7 more
doaj   +1 more source

Towards IP geolocation with intermediate routers based on topology discovery

open access: yesCybersecurity, 2019
IP geolocation determines geographical location by the IP address of Internet hosts. IP geolocation is widely used by target advertising, online fraud detection, cyber-attacks attribution and so on. It has gained much more attentions in these years since
Zhihao Wang   +5 more
doaj   +1 more source

Ancient Cartographies as a Basis for Geolocation Models in Public Space: The Case of Giambattista Nolli and its Heritage Application [PDF]

open access: yes, 2019
In 1748, the architect and surveyor Giambattista Nolli mapped an abstract reality of the city of Rome. As a challenge to the inherited projections, it represented the city mixing streets, halls, corridors, churches, baths and markets as part of a unique ...
Cubero Hernández, Antonio   +2 more
core   +1 more source

Optimized Method for Generating and Acquiring GPS Gold Codes

open access: yesInternational Journal of Antennas and Propagation, 2015
We propose a simpler and faster Gold codes generator, which can be efficiently initialized to any desired code, with a minimum delay. Its principle consists of generating only one sequence (code number 1) from which we can produce all the other different
Khaled Rouabah   +4 more
doaj   +1 more source

IP geolocation databases

open access: yesACM SIGCOMM 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.
Poese, Ingmar   +4 more
openaire   +3 more sources

Assessment of the NOAA S-NPP VIIRS Geolocation Reprocessing Improvements

open access: yesRemote 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   +4 more
doaj   +1 more source

Automatic geolocation of targets tracked by aerial imaging platforms using satellite imagery [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Tracking of targets from aerial platforms is an important activity in several applications, especially surveillance. Knowled ge of geolocation of these targets adds additional significant and useful information to the application.
P. K. Shukla   +3 more
doaj   +1 more source

Geolocation Accuracy Assessment of Himawari-8/AHI Imagery for Application to Terrestrial Monitoring

open access: yesRemote 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   +3 more
doaj   +1 more source

Confounds and Consequences in Geotagged Twitter Data [PDF]

open access: yes, 2015
Twitter is often used in quantitative studies that identify geographically-preferred topics, writing styles, and entities. These studies rely on either GPS coordinates attached to individual messages, or on the user-supplied location field in each ...
Eisenstein, Jacob   +1 more
core   +2 more sources

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