Zobrazeno 1 - 10
of 378
pro vyhledávání: '"Gerhard Krieger"'
Publikováno v:
Remote Sensing, Vol 16, Iss 8, p 1352 (2024)
Synthetic aperture radar (SAR) interferometry (InSAR) is a well-established remote sensing technique capable of providing accurate topographic information of an area. Multiple scattering occurring at different heights within a single resolution cell,
Externí odkaz:
https://doaj.org/article/3355efa2b0534a3082bed5c4ef29a1c8
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 16, Pp 3070-3082 (2023)
Airborne synthetic aperture radar (SAR) has the potential to monitor remotely the road traffic infrastructure on a large scale. Of particular interest is the road surface roughness, which is an important road safety parameter. For this task, novel al
Externí odkaz:
https://doaj.org/article/7ed13463e2e54b90b72c324d9c2b4e87
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 15, Pp 1244-1255 (2022)
This article addresses the design of a low-cost synthetic aperture radar (SAR) for a single dedicated application, namely illegal vessel detection, which can be implemented using a small satellite and is characterized by reduced transmit power and hi
Externí odkaz:
https://doaj.org/article/072a28e29e104cbabedf04566e84bb39
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 15, Pp 3444-3462 (2022)
The road surface roughness is an important parameter that determines the quality of a road network. It has a direct influence on the grip and skid resistance of the vehicles. For this reason, this parameter has to be periodically monitored to keep tr
Externí odkaz:
https://doaj.org/article/96298b3e8fa7499b942f1a14f1827c08
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 15, Iss 12, Pp 1594-1604 (2021)
Abstract Many modern microwave systems, for example, in the field of satellite communications, remote sensing for Earth observation or radio astronomy, employ reflector antennas with beam‐shaping capabilities. A generalised description of multi‐c
Externí odkaz:
https://doaj.org/article/d7db5e6bd5c640329c3bf56269a78345
Autor:
Markus Bachmann, Thomas Kraus, Allan Bojarski, Maximilian Schandri, Johannes Boer, Thomas Busche, Jose-Luis Bueso Bello, Christo Grigorov, Ulrich Steinbrecher, Stefan Buckreuss, Gerhard Krieger, Manfred Zink
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 3504-3518 (2021)
TanDEM-X is a formation flying interferometer consisting of two SAR satellites. Together they acquire bistatic SAR data of the earth in order to generate a global digital elevation model as well as individual scientific interferometric datasets on us
Externí odkaz:
https://doaj.org/article/cd2a1980b3884778b3adfb7c1641ad6d
Autor:
Manfred Zink, Alberto Moreira, Irena Hajnsek, Paola Rizzoli, Markus Bachmann, Ralph Kahle, Thomas Fritz, Martin Huber, Gerhard Krieger, Marie Lachaise, Michele Martone, Edith Maurer, Birgit Wessel
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 3546-3565 (2021)
On June 21, 2010, the TanDEM-X mission was launched and opened a new era in spaceborne radar remote sensing. The first formation flying radar system was built by extending the TerraSAR-X synthetic aperture radar (SAR) mission by a second, TerraSAR-X-
Externí odkaz:
https://doaj.org/article/027bb5c5f3024e42b12a33dc94220668
Autor:
Jan Krecke, Michelangelo Villano, Nertjana Ustalli, Andrew C. M. Austin, John E. Cater, Gerhard Krieger
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 3162-3169 (2021)
The performance tradeoffs of a smallsat synthetic aperture radar (SAR) system for maritime surveillance in the coastal waters of New Zealand are investigated. The lower costs of smallsat platforms allow for a constellation of SAR satellites that can
Externí odkaz:
https://doaj.org/article/28aae90e1a174e9784b10f9e18277d24
Publikováno v:
Remote Sensing, Vol 11, Iss 11, p 1270 (2019)
Ship detection is an essential maritime security requirement. Current state-of-the-art synthetic aperture radar (SAR) based ship detection methods employ fully focused images. The time-consuming processing efforts required to generate these images ma
Externí odkaz:
https://doaj.org/article/ab2df5a23ea84507a374018efb7d02f6
Publikováno v:
International Journal of Antennas and Propagation, Vol 2009 (2009)
The trend in the conception of future spaceborne radar remote sensing is clearly toward the use of digital beamforming techniques. These systems will comprise multiple digital channels, where the analog-to-digital converter is moved closer to the ant
Externí odkaz:
https://doaj.org/article/4f69f02834b74b8daed4a778464b93d6