Browsing JPL TRS 1992+ by Issue Date

Now showing items 21-40 of 32828

Effect of Cooling on Boundary-Layer Stability at Mach Number 3

Mack, L. (1992)

This paper describes the calculation of the effect of wall cooling on the instability of a two-dimensional, flat-plate supersonic boundary layer under stratospheric flight conditions at Mach 3 using both the inviscid and ...
An Evaluation of the National Meteorological Center Weekly Hindcast of Upper-Ocean Temperature Along the Eastern Pacific Equator in January 1992

Halpern, D. (1992)

The upper-ocean temperature distribution along the Pacific equator from 139 to 103 degrees west was observed in January 1992 with temperature profiles recorded from a ship and inferred from an ocean general circulation ...
Planetary Radar

Ostro, S. J. (1992)

Planetary radar astronomy is the study of solar system entities (the moon, asteroids, and comets, as well as the major planets and their satellites and ring systems) by transmitting radio signals towards a target and ...
Optimum Detection of Frequency-Hopped Signals

Cheng, Unjeng; Levitt, Barry; Polydoros, Andreas; Simon, Marvin K. (1992)

This paper derives and analyzes optimum and near-optimum structures for detecting frequency-hopped (FH) signals with arbitrary modulation in additive white Gaussian noise. The principalmodulation formats considered are ...
An Analysis of the History of Dust Activity on Mars

Martin, L. (1992-01-31)

a new comprehensive list of possible and probable dust activity has been compiled from various published lists and additional data.
Laboratory reflectance spectra of 160 minerals, 0.4 to 2.5 micrometers

Grove, C. I.; Hook, S. J.; Paylor, E. D. III (Pasadena, CA : Jet Propulsion Laboratory, 1992-02-15)

This reports provides reflectance spectra of 160 minerals in both digital and printed form.
Planetary Radar Astronomy

Ostro, S. J. (1992-03)

Planetary radar astronomy is the study of Solar System entities by transmitting a radio signal toward the target and then receiving and analyzing the echo. This field of research has primarily involved observations with ...
Control of Micromachined Deformable Mirrors

Agronin, M. L.; Bartman, R.; Hadaegh, F. Y.; Kaiser, W.; Wang, P. K. C. (1992-05)

A micromachined deformable mirror with pixelated electrostatic actuators is proposed. The paper begins with a physical description of the proposed mirror. Then, a mathematical model in the form of a nonlinear partial ...
Report of the Microspacecraft Panel

Jones, Ross M.; Connolly, Denis (1992-05)

These findings and recommendations are based solely on the material presented during the Microtechnologies and Applications to Space Systems Workshop, 5/27 and 28/92, and the personal knowledge and judgment of the panel ...
Future Trends in Small Missions and the Need for Microtechnology

Elachi, Charles (1992-05)
Micro-Sensors for in-situ Meteorological Measurements

Crisp, David; Kaiser, William J.; Vanzandt, Thomas R. (1992-05)

Improved in-situ meteorological measurements are needed for monitoring the weather and climate of the terrestrial and martian atmospheres. We have initiated a program to assess the feasibility and utility of micro-sensors ...
Micro-Guidance and Control Synthesis: New Components, Architectures, and Capabilities

Mettler, E.; Hadaegh, F. (1992-05)

This paper presents an advocacy for the development of micro-guidance, navigation, and control that would involve contributions and coordinated activities of NASA, industry, and academia.
Micro Guidance and Control Panel Recommendations

DiBattista, J.; Hadaegh, F.; Keckler, C. (1992-05)

None given. This presentation was made to help develop new mini/micro guidance and control system architectures and components that meet the needs of future space systems.
(abstract) A Broad-Band Microseismometer for Planetary Applications

Banerdt, W.B.; VanZandt, T.; Kaiser, W.J.; Kenny, T.W. (1992-05)

There has recently been renewed interest in the development of instrumentation for making measurements on the surface of Mars. This is due to the Mars Environmental Survey (MESUR) Mission, for which approximately 16 small, ...
Microspacecraft: A Concept

Jones, R. M. (1992-05)

There is need for smaller, faster, more frequent space science missions. Smaller spacecraft may enable such missions. Technology has been developed by the United States' Department of Defense and other government agencies ...
Microspacecraft Attitude Control

Sevaston, G. E. (1992-05)
Abstract, Foreword, Summary Report for Workshop Proceedings: Microtechnology and Applications to Space Systems

Wilson, B.A. (1992-05-27)

During FY'92, the NASA Code RS System Analysis RTOP funded a study to evaluate the potential impact of emerging microtechnologies on future space missions. As part of this study, a workshop,
Micro-Guidance & Control Technology Overview

Kissel, Glen J.; Hadaegh, Fred Y. (1992-05-27)

This paper gives an overview of micro-guidance and control technologies and in the process previews of some of the technologies, users and system issues presented in the guidance and control session at the workshop.
Series-Fed-Type Linear Arrays of Dipole and Slot Elements Transversely Coupled to a Microstrip Line

Gulintseff, A. N. (1992-06-27)

Printed dipole elements and their complement, liner slots, are elementary radiators that have found use in low-profile antenna arrays.
Complex Reconfigurable Free-spce Optical Interconnections Via Phase CGH in Spatial Light Modulators

Liu, H-K.; Zhou, S. (1992-07)

The non-interfering free-space optical interconnections possess the advantages of higher throughput and less delay time compared to electronic interconnections.

Browsing JPL TRS 1992+ by Issue Date

Browsing JPL TRS 1992+ by Issue Date

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