Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Daniel E. Wahl"'
Autor:
Lynn M. Carter, Daniel E. Wahl, J. R. Jensen, David A. Yocky, R. K. Raney, Thomas W. Thompson, D. B. J. Bussey, I. Erteza, Michael C. Nolan, G. W. Patterson, Bradley J. Thomson, Angela Stickle, R. L. Kirk, Catherine D. Neish, Joshua T.S. Cahill, R. Schulze, F. S. Turner, R. C. Espiritu, Bertice L. Tise, Michael Zimmerman, Paul D. Spudis, Charles V. Jakowatz
Publikováno v:
Icarus. 283:2-19
The Miniature Radio Frequency (Mini-RF) instrument aboard NASA's Lunar Reconnaissance Orbiter (LRO) is a hybrid dual-polarized synthetic aperture radar (SAR) that operated in concert with the Arecibo Observatory to collect bistatic radar data of the
Autor:
J. M. Barrett, D. B. J. Bussey, Daniel E. Wahl, S. Turner, I. Erteza, David A. Yocky, G. W. Paterson, R. L. Kirk, C. V. Jackowatz
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLI-B4, Pp 425-429 (2016)
The spaceborne synthetic aperture radar (SAR) instruments known as Mini-RF were designed to image shadowed areas of the lunar poles and assay the presence of ice deposits by quantitative polarimetry. We have developed radargrammetric processing techn
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 54:2460-2469
In past research, two-pass repeat-geometry synthetic aperture radar (SAR) coherent change detection (CCD) predominantly utilized the sample degree of coherence as a measure of the temporal change occurring between two complex-valued image collects. P
Publikováno v:
SPIE Proceedings.
Fully-polarimetric X-band (9.6 GHz center frequency) VideoSAR with 0.125-meter ground resolution flew collections before, during, and after the fifth Source Physics Experiment (SPE-5) underground chemical explosion. We generate and exploit synthetic
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 42:301-308
Coherent cross-track synthetic aperture radar (SAR) stereo is shown to produce high-resolution three-dimensional maps of the Earth surface. This mode utilizes image pairs with common synthetic apertures but different squint angles allowing automated
While typical SAR imaging employs a co-located (monostatic) RADAR transmitter and receiver, bistatic SAR imaging separates the transmitter and receiver locations. The transmitter and receiver geometry determines if the scattered signal is back scatte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41eab5997732bf82d04fb059ea1e2eb0
https://doi.org/10.2172/1159447
https://doi.org/10.2172/1159447
Publikováno v:
SPIE Proceedings.
We have employed the Arecibo Observatory Planetary Radar (AO) transmitter and the Mini-RF radar onboard NASA's Lunar Reconnaissance Orbiter (LRO) as a receiver to collect bistatic data of the lunar surface. In this paper, we demonstrate the ability t
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 30:827-835
The phase gradient autofocus (PGA) technique for phase error correction of spotlight mode synthetic aperture radar (SAR) imagery is examined carefully in the context of four fundamental signal processing steps that constitute the algorithm. We demons
Autor:
Daniel E. Wahl
Publikováno v:
Digital Signal Processing. 3:46-53