Engineering topics
Oxnevad, K.
Publications and source records attributed to Oxnevad, K..
Searching for subsurface lunar water ice using a small RPS-powered rover
Explore the source record for details and available documents.
Spaceborne Microwave Instrument for High Resolution Remote Sensing of the Earth's Surface Using a Large-Aperture Mesh Antenna
This report describes a two-year study of a large-aperture, lightweight, deployable mesh antenna system for radiometer and radar remote sensing of the Earth from space. The study focused specifically on an instrument to measure ocean salinity and Soil moisture. Measurements of ocean salinity and soil moisture are of critical . importance in improving knowledge and prediction of key ocean and land surface processes, but are not currently obtainable from space. A mission using this instrument would be the first demonstration of deployable mesh antenna technology for remote sensing and could lead to potential applications in other remote sensing disciplines that require high spatial resolution measurements. The study concept features a rotating 6-m-diameter deployable mesh antenna, with radiometer and radar sensors, to measure microwave emission and backscatter from the Earth's surface. The sensors operate at L and S bands, with multiple polarizations and a constant look angle, scanning across a wide swath. The study included detailed analyses of science requirements, reflector and feedhorn design and performance, microwave emissivity measurements of mesh samples, design and test of lightweight radar electronic~., launch vehicle accommodations, rotational dynamics simulations, and an analysis of attitude control issues associated with the antenna and spacecraft, The goal of the study was to advance the technology readiness of the overall concept to a level appropriate for an Earth science emission.
NPDT: The future of design is now
This paper starts with a description of the analysis and design methodology utilized in the NPDT, continues with a discussion about its implementation, and ends with some examples of how this methodology has benefited projects supported by the NPDT.
The Next Generation Payload Development Team (NPDT) Small Discovery Spacecraft
Explore the source record for details and available documents.
Team I - A New Design Pardigm
Explore the source record for details and available documents.
A Concurrent Design Approach for Designing Space Telescopes and Instruments
At the Project Design Center at the Jet Propulsion Laboratory, a concurrent design environment is under development for supporting development and analysis of space instruments and telescopes in the early, conceptual design phases.