Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Mark M. Baumback"'
Autor:
J. A. Antoniades, Curtiss O. Davis, Mary E. Kappus, M Czarnaski, Jeffrey H. Bowles, Mark M. Baumback, John M. Grossmann
Publikováno v:
Metrologia. 35:657-661
We demonstrate the calibration and error estimation for three inexpensive pushbroom imaging spectrometers that operate in the visible/near-infrared range. The instruments were all built at the Naval Research Laboratory from commercial, off-the-shelf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7beb4dcd22da73305692181615d4daf6
https://doi.org/10.1088/0026-1394/35/4/74
https://doi.org/10.1088/0026-1394/35/4/74
Publikováno v:
Geophysical Research Letters. 24:635-638
Ionospheric heating experiments have begun to examine interactions at altitudes where the heater HF wave frequency matches the local electron plasma frequency. We discuss the frequency-shifted signature observed by radiowave receivers on a rocket lau
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32cf30666349440ea5ffc28c4bf040ed
https://doi.org/10.1029/97gl00532
https://doi.org/10.1029/97gl00532
Publikováno v:
Measurement Techniques in Space Plasmas: Particles
Space plasma wave experiments have been designed to detect ionospheric cavitons driven by large amplitude high frequency (HF) radiowaves. In this report, we discuss the small electric field HF double probes and the downconverter designed for in situ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db6ec7df700900565ad5c90b1fde7e74
https://doi.org/10.1029/gm102p0073
https://doi.org/10.1029/gm102p0073
Publikováno v:
Review of Scientific Instruments. 67:3751-3754
We have developed a digital signal processor (DSP) system to extend the capabilities of a variety of scientific instruments used to make in situ ionospheric plasma measurements from sounding rockets and spacecraft. The DSP system is extremely flexibl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb110914f36e77edc0b114daea95d836
https://doi.org/10.1063/1.1147143
https://doi.org/10.1063/1.1147143
Publikováno v:
Geophysical Research Letters. 22:3251-3254
The Ionospheric Focused Heating rocket experiment created an ionospheric hole above the Arecibo HF radiowave heater by the release of an electron-attachment chemical. The hole served as a focusing lens for HF waves at 5.1 MHz and produced various pla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27abc7f3fa372a4061bd3ace0e266d5f
https://doi.org/10.1029/95gl02778
https://doi.org/10.1029/95gl02778
Publikováno v:
Review of Scientific Instruments. 66:4681-4689
We present a method for measuring large changes in the electrical potential of a spacecraft. It is known that a spacecraft in the ionosphere can obtain voltages as large as a few kilovolts. Spacecraft charging can occur naturally in the auroral regio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f1359e8137bbaa47636a6dc7de25f4e
https://doi.org/10.1063/1.1145307
https://doi.org/10.1063/1.1145307
Publikováno v:
Review of Scientific Instruments. 66:1056-1060
For research into space plasma turbulence, we have developed a number of space‐flight instruments for making in situ measurements of plasma wave activity. One of these instruments, the NRL downconverter, is used to measure plasma waves in the 2‐
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78fbfc3700e3a27b57a07c1de450ac10
https://doi.org/10.1063/1.1146045
https://doi.org/10.1063/1.1146045
Autor:
Carl L. Siefring, Jeffrey H. Bowles, David N. Walker, D. Duncan, Mark M. Baumback, P. Rodriguez, John Stracka
Publikováno v:
Review of Scientific Instruments. 65:661-668
In laboratory experiments related to space plasma physics it is often desirable to produce plasmas with characteristics as close as possible to various naturally occurring plasma regimes. In the near‐earth region space plasma densities typically va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ead29505e3de8d0acd524d6deae9a552
https://doi.org/10.1063/1.1145135
https://doi.org/10.1063/1.1145135
Publikováno v:
Journal of Spacecraft and Rockets. 29:607-609
Fig. 3 Spectrograms of the signals from the magnetic (top) and electric (bottom) antennas during the barium chemical release from the CRRES spacecraft at 08:37:07 UT on July 19, 1991. magnetic antenna. The total signal in-band is also averaged and re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b3ebf6577c3eddbef6e1b24d9506310
https://doi.org/10.2514/3.55644
https://doi.org/10.2514/3.55644
Autor:
Mark M. Baumback, Peter J. Palmadesso, J. A. Antoniades, David Gillis, John M. Grossmann, J. G. Skibo, Mark Daniel, Daniel Haas, Dean Clamons, Jeffrey H. Bowles
Publikováno v:
SPIE Proceedings.
We present results from an improved ORASIS (Optical Real-time Adaptive Spectral Identification System) hyperspectral-data compression-algorithm that is being implemented on the Naval EarthMap Observer (NEMO) satellite. The algorithm is shown to produ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab52912bc348faa21f6889be392dc1b9
https://doi.org/10.1117/12.366284
https://doi.org/10.1117/12.366284