42,161 to 42,170 of 42,213 Results
Nov 3, 1992
Haddad, Ziad S.; Im, Eastwood, 1992, "Optimal estimation of rain rate profiles from single-frequency radar echoes.", https://hdl.handle.net/2014/36025, pre-print, JPL Open Repository
The significant ambiguities inherent in the determination of a particular vertical rain intensity profile from a given time profile of radar echo powers measured by a downward-looking (spaceborne or airborne) radar at a single attelluating frequency are well-documented. Indeed, o... |
Nov 1, 1992
Johnson, D. L.; Mon, G. R.; Rodd, R. G. Jr., 1992, "Spacecraft Cooler Characterization", https://hdl.handle.net/2014/36682, Santa Fe, New Mexico, USA, JPL Open Repository
To meet an important need within the space community for a reliable and accurate database of cryocooler performance, the Jet Propulsion Laboratory (JPL), under SDIO/Air Force Sponsorship, is conducting an extensive space cryocooler characterization program involving long-life cry... |
Nov 1, 1992
Jr., Randall W. Hill; Lee, Lorrine F., 1992, "Situation Management in the Link Monitor and Control Operator Assistant (LMCOA)", https://hdl.handle.net/2014/36698, ['Space OPS 92, Second International Symposium Ground Data Systems for Space Missions Operations', 'Pasadena, CA'], JPL Open Repository
This paper describes a knowledge-based system called the Situation Manager that was developed for the Link Monitor and Control Operator Assistant (LMCOA) at the Jet Propulsion Laboratory. This system was developed in response to a number of deficiencies that were identified in an... |
Nov 1, 1992
Laskin, R. A., 1992, "Control /Structure Interaction Technology for the Microdynamic Regime", https://hdl.handle.net/2014/36681, Nice, France, JPL Open Repository
The CSI program at JPL is chartered to develop the structures and control technology needed for sub-micron level stabilization of future optical space systems. |
Nov 1, 1992
Jacobson, Allan S., 1992, "LinkWinds: An Approach to Visual Data Analysis", https://hdl.handle.net/2014/35388, ['International Symposium on Spectral Sensing Research', 'Maui, Hawaii'], JPL Open Repository
The Linked Windows Interactive Data System (LinkWinds) is a prototype visual data exploration and analysis system resulting from a NASA/JPL program of research into graphical methods for rapidly accessing, displaying and analyzing large multivariate multidisciplinary datasets. It... |
Nov 1, 1992
Heuser, W. Randy; Cooper, Lynne P., 1992, "An OSI Architecture for the Deep Space Network", https://hdl.handle.net/2014/36697, ['Space Ops 92: 2nd Intl. Symposium on Ground Data Systems for Space Mission Operations', 'Pasadena, CA'], JPL Open Repository
The flexibility and robustness of a monitor and control system are a direct result of the underlying inter-processor communications architecture. A new architecture for monitor & control at the Deep Space Network Communications Complexes has been developed based on the Open Syste... |
Nov 1, 1992
Chrisp, Michael P., 1992, "optical Instruments for Remote Sensing from Space", https://hdl.handle.net/2014/35082, Boston, MA, USA, JPL Open Repository
This review covers the optical design of passive remote sensing optical instruments. The review concentrates on the design of spaceborne multispectral cameras and imaging spectometers. The major designs that have been produced over the past ten years are discussed, and new design... |
Oct 16, 1992
Sahai, R.; Bieging, J.H., 1992, "Interferometric Observations of Non-Maser SiO Emission from Circumstellar Envelopes of AGB Stars: Acceleration Regions and SiO Depletion", https://hdl.handle.net/2014/36688, USA, JPL Open Repository
We have obtained high and medium resolution images of the SiO J=2-1 (V=0) emission from the circumstellar envelopes of three oxygen-rich Mira variables, XXyg, RX Boo, and IK Tau. |
Oct 15, 1992
Durden, Stephen L.; Klein, Jeffrey D.; Zebker, Howard A., 1992, "Measurement And Simulation of Signal Fluctuations Caused By Propagation Through Trees", https://hdl.handle.net/2014/36685, USA, JPL Open Repository
We present measured fluctuations of UHF, L-band, and C-band signals that were transmitted from the ground through a forest canopy to an airborne radar. By use of a transmitter in the open, we are able to derive both magnitude and phase fluctuations. We then propose a simple Monte... |
Oct 1, 1992
Srivastava, Krishna M.; Bruce T. Tsurutani; Goldstein, Bruce E.; Sharma, V.; Okada, M., 1992, "The Scattering and Acceleration of Water Group Ions Due to Oblique Nonlinear Magnetosonic Waves: With Application to Comets", https://hdl.handle.net/2014/36691, USA, JPL Open Repository
The Observations made during the encounter with comet Giacobini Zinner show that close to the bow shock the character of MHDd turbulence is govered by the Magnetosonic waves generated by the pickup ions via a resonant cyclotron instability. |