| Characterization of the Marine Atmosphere for Free-Space Optical Communication |
2006 |
13 pages |
| Authors:
Linda M. Wasiczko; Christopher I. Moore; Harris R. Burris; Michele Suite; Mena Stell; James Murphy; G. C. Gilbreath; William Rabinovich; William Scharpf; NAVAL RESEARCH LAB WASHINGTON DC
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 | The Chesapeake Bay Detachment of the Naval Research Laboratory (NRL-CBD) provides an ideal environment for characterizing the effects of the marine atmosphere on free space optical communication links. The site has recently been converted to an operational 10 mile (16.2 km) one-way test range to collect information on propagation statistics in a variety of atmospheric conditions. The results presented here compare the contributions of thermal gradients across the bay to ... |
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| Optical Communication and Navigation for Spacecraft Docking using Modulating Retroreflectors |
2005 |
10 pages |
| Authors:
Linda M. Wasiczko; Harris R. Burris; N. G. Creamer; Rita Mahon; Christopher Moore; Lee Swingen; James Murphy; Mena Stell; Brad E. Pinney; Peter Goetz; NAVAL RESEARCH LAB WASHINGTON DC
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| An optical communications link is used to transmit important navigation and range information between two spacecraft platforms to aid in the spacecraft docking process. This experiment uses NRL's multiple quantum well modulating retroreflector (MRR) array as the light payload optical communications transmitter on the target spacecraft. Spacecraft navigation information is determined by using the MRR array to impose five distinct modulation frequencies on the optical transmit beam, and analyzing the ... |
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| Estimating Optical Turbulence Using the PAMELA Model |
2004 |
12 pages |
| Authors:
Bun Oh; Jennifer Ricklin; Frank Eaton; Charmaine Gilbreath; Steve Doss-Hammel; Chris Moore; James Murphy; Yeonju H. Oh; Mena Stell; NAVAL RESEARCH LAB WASHINGTON DC
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| We present an optical turbulence model that has evolved from the PAMELA model. After a preliminary report in SPIE 2003 it became apparent that more data was needed to refine this adaptive model. This led us to take twelve months of over-land data "~100 meters pathlength" at the Chesapeake Bay Detachment of the Naval Research Lab. We present data throughout the year with varying environments with comparison with the model ... |
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| Progress in Development of Multiple Quantum Well Retromodulators for Free-Space Data Links |
JUN 2003 |
29 pages |
| Authors:
G. C. Gilbreath; W. S. Rabinovich; Timothy J. Meehan; Michael J. Vilcheck; Mena Stell; Rita Mahon; Peter G. Goetz; Eun Oh; John Vasquez; Kerry Cochrell; Robert Locke; Sharon Mozersky; NAVAL RESEARCH LAB WASHINGTON DC
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| This paper is an update in the progress of the development of NRL's Multiple Quantum Well retromodulators for compact, low power communications. We report results for data-in-flight on a small, unmanned aerial vehicle at up to 5 Mbps, in preparation for real-time video transfer using an array of devices. This data was taken at Chesapeake Bay Detachment. We also report transference of color video using wavelet compression at 15 and ... |
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| Progress in Development of Mulitple-Quantum-Well Retromodulators for Free-Space Data links |
JUN 2003 |
8 pages |
| Authors:
G. C. Gilbreath; William S. Rabinovich; Timothy J. Meehan; Michael J. Vilcheck; Mena Stell; Rita Mahon; Peter G. Goetz; Kerry Cochrell; Robert L. Lucke; Sharon Mozersky; NAVAL RESEARCH LAB WASHINGTON DC
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| We present an update on the progress of the development of the Naval Research Laboratory's (NRL's) multiple-quantum-well retromodulators for compact, low-power communications. We report results for data-in-flight on a small, unmanned aerial vehicle at up to 5 Mbps, in preparation for real-time video transfer using an array of devices. This data was taken at Chesapeake Bay Detachment. We also report transference of color video using wavelet compression at 15 and ... |
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| Progress in Development of Multiple-Quantum-Well Retromodulators for Free-Space Data Links |
JUN 2003 |
8 pages |
| Authors:
G. C. Gilbreath; William S. Rabinovich; Timothy J. Meehan; Michael J. Vilcheck; Mena Stell; Rita Mahon; Peter G. Goetz; Eun Oh; John A. Vasquez; Kerry Cochrell; Robert L. Lucke; Sharon Mozersky; NAVAL RESEARCH LAB WASHINGTON DC
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| We present an update on the progress of the development of the Naval Research Laboratory's (NRL's) multiple-quantum-well retromodulators for compact, low-power communications. We report results for data-in-flight on a small, unmanned aerial vehicle at up to 5 Mbps, in preparation for real-time video transfer using an array of devices. This data was taken at Chesapeake Bay Detachment. We also report transference of color video using wavelet compression at 15 and ... |
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| Real Time Video Transfer Using Multiple Quantum Well Retromodulators |
2002 |
9 pages |
| Authors:
G. C. Gilbreath; W. S. Rabinovich; Timothy J. Meehan; Michael J. Vilcheck; Mena Stell; Rita Mahon; Peter G. Goetz; Eun Oh; John Vasquez; Kerry Cochrell; NAVAL RESEARCH LAB WASHINGTON DC
|
| This paper is an update in the progress of the development of NRL's Multiple Quantum Well retromodulators for compact, low power communications. We report results for data-in-flight on a small unmanned aerial vehicle at up to 5 Mbps in preparation for real-time video transfer using an array of devices. This data was taken at Chesapeake Bay Detachment. We also report transference of color video using wavelet compression at 15 and ... |
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