Zobrazeno 1 - 10
of 16
pro vyhledávání: '"M. M. Seaver"'
Autor:
Igor D. Gaschits, N. W. Spellmeyer, Jade P. Wang, R. J. Magliocco, Robert J. Murphy, C. A. Browne, David O. Caplan, G. Lund, J. J. Fitzgerald, C. D. Burton, O. V. Mikulina, Hemonth G. Rao, J. J. Carney, S.R. Henion, M. M. Seaver, M. L. Chavez, David J. Geisler, Scott A. Hamilton
Publikováno v:
Free-Space Laser Communication and Atmospheric Propagation XXVI.
Recently, we demonstrated a multi-rate DPSK modem with high-sensitivity over a wide dynamic range, which can significantly benefit performance and cost of NASA’s Laser Communication Relay Demonstration. This increased flexibility, combined with the
Autor:
David O. Caplan, J. J. Carney, R. J. Magliocco, G. Lund, N. W. Spellmeyer, C. A. Browne, O. V. Mikulina, Richard D. Kaminsky, Robert J. Murphy, M. L. Chavez, Scott A. Hamilton, J. P. Wang, Andrew S. Fletcher, Hemonth G. Rao, J. J. Fitzgerald, M. M. Seaver, Marvin S. Scheinbart
Publikováno v:
Free-Space Laser Communication and Atmospheric Propagation XXVI.
The multi-rate DPSK format, which enables efficient free-space laser communications over a wide range of data rates, is finding applications in NASA’s Laser Communications Relay Demonstration. We discuss the design and testing of an efficient and r
Autor:
T. C. L. G. Sollner, R.W. Ralston, Peter G. Murphy, D. R. Arsenault, M. M. Seaver, R. R. Boisvert, R.L. Slattery, Alfredo C. Anderson, W.G. Lyons
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 44:1258-1278
Wideband compressive receivers are an attractive application niche for analog high temperature superconductive (HTS) microwave filters. Chirp filters form the basis of compressive receivers, implementing a chirp-transform algorithm in the analog doma
Autor:
D. R. Arsenault, Alfredo C. Anderson, T. C. L. G. Sollner, W.G. Lyons, M. M. Seaver, R. R. Boisvert, R.L. Slattery
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 5:2071-2074
Exploiting the high-temperature superconductor YBa/sub 2/Cu/sub 3/O/sub 7-x/ (YBCO), we have extended chirp-transform processing to instantaneously analyze the spectrum of an incoming signal over greater bandwidth than any competing technology. A com
Publikováno v:
Microwave and Optical Technology Letters. 6:728-732
A 3-GHz-bandwidth real-time spectral-analysis receiver has been demonstrated. The fully integrated compressive receiver is based on the chirp-transform algorithm and uses a high-Tc superconductive (HTS) tapped-delay-line chirp filter with a time-band
Publikováno v:
IEEE Transactions on Applied Superconductivity. 3:2891-2894
The implementation of a wideband real-time spectrum-analysis receiver based on YBa/sub 2/Cu/sub 3/O/sub 7-x/ chirp filters and a chirp-transform algorithm is presented. The integration of the high-T/sub c/ spectrum-analysis subsystem with high-speed
Autor:
W. Gregory Lyons, R. R. Boisvert, T. C. L. G. Sollner, M. M. Seaver, D. R. Arsenault, Alfredo C. Anderson
Publikováno v:
SPIE Proceedings.
A prototype 3-GHz-bandwidth real-time spectral analysis receiver has been demonstrated by Lincoln Laboratory. This receiver is based on high-Tc tapped-delay-line chirp filters and uses high-speed semiconductor circuits to perform the output processin
Publikováno v:
Microwave and Optical Technology Letters. 7:875-875
Autor:
Nichols JM; US Naval Research Laboratory, Code 5673, Washington, DC 20375, USA. pele@ccs.nrl.navy.ml, Seaver M, Trickey ST, Todd MD, Olson C, Overbey L
Publikováno v:
Physical review. E, Statistical, nonlinear, and soft matter physics [Phys Rev E Stat Nonlin Soft Matter Phys] 2005 Oct; Vol. 72 (4 Pt 2), pp. 046217. Date of Electronic Publication: 2005 Oct 24.
Autor:
Nichols JM; US Naval Research Laboratory, Code 5673, Washington, DC 20375, USA. pele@ccs.nrl.navy.mil, Todd MD, Seaver M, Trickey ST, Pecora LM, Moniz L
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2003 Dec 23; Vol. 100 (26), pp. 15299-303. Date of Electronic Publication: 2003 Dec 12.