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Now showing items 13650-13669 of 36386

High-Dynamic Range Fiberoptic Links for Antenna Remoting Applications

Gee, C. M.; Chen, T. R.; Chen, P. C.; Paslaski, J.; Lau, K. Y.; Logan, R. T.; Calhoun, M. D.; Lutes, G. (1993)

In recent years, the performance and cost effectiveness of analog fiberoptic communication systems have improved so that many applications including antenna remoting which requires high dynamic range can now benefit from ...
High-efficiency L-band transmit/receive module for synthetic aperture radar

Edelstein, W. N.; Andricos, C.; Moussessian, A.; Wang, F.; Rutledge, D. B. (2003-05-05)

We will show that a dramatic improvement in overall T/R module efficiency is possible using the results of current research in high-efficiency Class-E/F amplifiers.
High-efficiency microwave and millimeter-wave electro-optical modulation with whispering-gallery resonators

Iltchenko, V. S.; Savchenkov, A.; Matsko, A.; Maleki, L.; McMillan, R.; Handley, T. (2002-01-23)
High-efficiency pulsed laser transmitters for deep-space communication

Hemmati, H.; Wright, M.; Biswas, A.; Esproles, C. (2000-01-24)

Highly efficient laser sources are required for deep space optical telecommunication. This paper investigates the efficiency components for pulsed diode pumped solid state laser transmittersand determines the overall ...
High-efficiency UV SNSPDs from amorphous MoSi

Wollman, Emma; Verma, Varun; Briggs, Ryan; Beyer, Andrew; Mirin, Richard; Nam, SaeWoo; Marsili, Francesco; Shaw, Matthew D. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-06-05)
High-energy electron and X-Ray irradiation and charging of spacecraft polymeric materials

Frederickson, A. R.; Garrett, H. B. (2000-09-24)
High-Energy Radiation Testing and Effects on Spacecraft Materials Outgassing

Soares, Carlos (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2019, 2019-10-21)
High-energy radiation testing and effects on spacecraft materials outgassing

Soares, Carlos E.; Wong, Anthony T.; Fugett, Daniel A.; Hoey, William A.; Alred, John M.; Ferraro, Ned W.; Thorbourn, Dennis O. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2019, 2019-10-21)
High-energy radiation testing and effects on spacecraft materials outgassing

Soares, Carlos E.; Wong, Anthony T.; Fugett, Daniel A.; Hoey, William A.; Alred, John M.; Ferraro, Ned W.; Thorbourn, Dennis O. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2019, 2019-10-21)
High-Energy-Density Fuel Blending Strategies and Drop Dispersion for Fuel Cost Reduction and Soot Propensity Control

Bellan, J.; Harstad, K. (1998-08-02)

The idea that low soot propensity of high-energy-density (HED) liquid sooting fuels and cost reduction of a multicomponent energetic fuel can be achieved by doping a less expensive, less sooting liquid fuel with HED is ...
High-fidelity modeling of semi-autonomous attitude control during aerobraking

Lyons, D. T.; Johnson, W.; Longuski, J. M. (2002-08-05)

We investigate the automation of a Mars aerobraking vehicle that uses reaction wheels for attitude and angular momentum control during atmospheric flythrough.
High-fidelity telecom analysis techniques for spacecraft dynamic events

Tung, R.; Cheung, K. M.; Taylor, J.; Mendoza, R. (2002-10-09)
High-fidelity telecom analysis techniques for spacecraft dynamic events

Tung, R.; Cheung, K. M.; Taylor, J.; Mendoza, R. (2002-10-09)

In this paper, we describe a systematic approach to support telecom planning and analysis for spacecraft dynamic events.
High-Frequency Orographically Forced Variability in a Single-Layer Model of the Martian Atmosphere

Keppenne, C. L.; Ingersoll, A. P. (1993-07)

A shallow water model with realistic topography and idealized zonal wind forcing is used toinvestigate orographically forced modes in the Martian atmosphere. Locally, the model reproduceswell the climatology at the sites ...
High-Frequency Syncronous Rectificatin in Spacecraft Power Systems

Krauthamer, Stan; Das, Radhe (1993-08-23)
A High-gain Circularly Polarized Ka-band Microstrip Reflectarray

Huang, J. (1996)

A half-meter, 32 GHz, circularly polarized microstrip reflectarray antenna has been developed. Excellent efficiency, good bandwidth, and low average sideglobe and cross-pol levels are achieved. It is believed that this ...
A high-heritage blunt-body entry, descent, and landing concept for human Mars exploration

Price, Humphrey; Manning, Robert; Sklyanskiy, Evgeniy; Braun, Robert (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-01-04)
A high-heritage blunt-body entry, descent, and landing concept for human Mars exploration

Price, Humphrey; Manning, Robert; Sklyanskiy, Evgeniy (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-01-04)

A conceptual design was developed for a 10 meter diameter crewed Mars lander with an entry mass of ~75 tons that could deliver ~28 tons of useful landed mass (UVM) to a zero Mars areoid, or lower, elevation.
A high-heritage blunt-body entry, descent, and landing concept for human Mars exploration

Price, Humphrey; Manning, Robert; Sklyanskiy, Evgeniy; Braun, Robert (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-01-04)

Human-scale landers require the delivery of much heavier payloads to the surface of Mars than is possible with entry, descent, and landing (EDL) approaches used to date. A conceptual design was developed for a 10 m diameter ...
A high-heritage blunt-body entry, descent, and landing concept for human Mars exploration

Price, Humphrey; Manning, Robert; Sklyanskiy, Evgeniy; Braun, Robert (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-01-04)

Now showing items 13650-13669 of 36386

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