Institution
Raytheon
Company•Waltham, Massachusetts, United States•
About: Raytheon is a company organization based out in Waltham, Massachusetts, United States. It is known for research contribution in the topics: Signal & Antenna (radio). The organization has 15290 authors who have published 18973 publications receiving 300052 citations.
Topics: Signal, Antenna (radio), Radar, Turbine, Amplifier
Papers published on a yearly basis
Papers
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TL;DR: Zhang et al. as discussed by the authors showed that the discrepancy can be explained by spectral measurement errors in the TES data, which should enable TES to provide better information on O3-CO correlations.
Abstract: 0.4– 1.0 mol mol � 1 and consistent with ICARTT data. The GEOS-Chem model reproduces the O3-CO enhancement ratios observed in continental outflow, but model correlations are stronger and more extensive. We show that the discrepancy can be explained by spectral measurement errors in the TES data. These errors will decrease in future data releases, which should enable TES to provide better information on O3-CO correlations. Citation: Zhang, L., et al. (2006), Ozone-CO correlations determined by the TES satellite instrument in continental outflow regions, Geophys. Res. Lett., 33, L18804, doi:10.1029/2006GL026399.
92 citations
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17 Jan 1997TL;DR: In this paper, a plurality of dimensionally programmable detection regions, are defined within the communication zone, and if a change in the location of the transponder occurs and one of the detection criteria has been met, a detection region report message is generated.
Abstract: Data transmissions between a transponder and a reader of a toll collection system are minimized while the transponder moves through a communication zone of the system. A plurality of dimensionally programmable detection regions, are defined within the communication zone. Detection criteria are also defined that indicate whether the transponder transitions into, out of, or both into and out of one of a plurality of "in" detection regions. Then it is determined if the current geolocation of the transponder is within any of the detection regions. The current location of the transponder is compared to the previous location of the transponder. If a change in the location of the transponder occurs and one of the detection criteria has been met, a detection region report message is generated. The detection region report message is sent to an application processor for processing, and if the transponder moves out of any of the "in" detection regions, the application processor drops the communications link to that transponder. This minimizes the amount of processing and data transfer between the transponders and the reader and processor.
92 citations
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TL;DR: The authors analyzed the radial surface brightness profile of the spiral galaxy NGC 7793 using HST/ACS images from the GHOSTS survey and a new HST-WFC3 image across the disk break.
Abstract: We analyzed the radial surface brightness profile of the spiral galaxy NGC 7793 using HST/ACS images from the GHOSTS survey and a new HST/WFC3 image across the disk break. We used the photometry of resolved stars to select distinct populations covering a wide range of stellar ages. We found breaks in the radial profiles of all stellar populations at 280'' (~5.1 kpc). Beyond this disk break, the profiles become steeper for younger populations. This same trend is seen in numerical simulations where the outer disk is formed almost entirely by radial migration. We also found that the older stars of NGC 7793 extend significantly farther than the underlying H I disk. They are thus unlikely to have formed entirely at their current radii, unless the gas disk was substantially larger in the past. These observations thus provide evidence for substantial stellar radial migration in late-type disks.
92 citations
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31 Oct 2012TL;DR: In this article, a three-frame difference processing on frames of LIDAR range images of a scene to identify a moving target and determine an initial position estimate for the moving target is described.
Abstract: Embodiments of video and LIDAR target detection and tracking system and method for segmenting targets are generally described herein. In some embodiments, the system may perform moving target detection using three-frame difference processing on frames of LIDAR range images of a scene to identify a moving target and determine an initial position estimate for the moving target. The system may also perform segmentation of the moving target using a single frame of the LIDAR range images to generate a segmented target that may include a target mask and target centroid position. After segmentation, moving target registration including motion compensation may be performed by registering the segmented target in multiple LIDAR frames to determine a target position, a target orientation and a target heading. In some embodiments, a three-dimensional model of the moving target may be generated and added to a sequence of video frames.
92 citations
Authors
Showing all 15293 results
Name | H-index | Papers | Citations |
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Peter J. Kahrilas | 109 | 586 | 46064 |
Edward J. Wollack | 104 | 732 | 102070 |
Duong Nguyen | 98 | 674 | 47332 |
Miroslav Krstic | 95 | 955 | 42886 |
Steven L. Suib | 89 | 862 | 34189 |
Gabriel M. Rebeiz | 87 | 806 | 32443 |
Charles W. Engelbracht | 83 | 210 | 28137 |
Paul A. Grayburn | 77 | 397 | 26880 |
Eric J. Huang | 72 | 201 | 22172 |
Thomas F. Eck | 72 | 150 | 32965 |
David M. Margolis | 70 | 227 | 17314 |
David W. T. Griffith | 65 | 288 | 14232 |
Gerhard Klimeck | 65 | 685 | 18447 |
Nickolay A. Krotkov | 63 | 219 | 11250 |
Olaf Stüve | 63 | 290 | 14268 |