The development of inflatable array antennas
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Engineering topics
Publications and source records attributed to Lou, M..
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The current Geostationary Operational Environmental Satellites (GOES) are eqipped to make cloud top measurements only. In contrast, a millimeter-wave radar allows 3-D measurements of precipitation associated with hurricanes and other convective systems. It also provides important inputs for numerical weather prediction models for improving the accuracy of weather nowcasting and forecasting.
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In this paper, the technology development status on this Advanced Precipitation Radar Antenna will be presented.
The current Geostationary Operational Environmental Satellites (GOES) are equipped to make cloud top measurements only. In contrast, a millimeter-wave radar allows 3-D measurements of precipitation associated with hurricanes and other convective systems. It also provides important inputs to numerical weather prediction models for improving the accuracy in weather nowcasting and forecasting.
Gossamer space structures are relatively large, flimsy, and lightweight. As a result, they are more easily affected or degraded by space thermal environments compared to other space structures. This study examines the structural integrity of a three-meeter Ka-band inltable/self-rigidizable reflectarray antenna under space thermal environments.
Deployment dynamic behavior of an inflatable space structure is analyzed using a combination of gas dynamic analysis and rigid body kinematics simulations. Modeling technique is presented for deployment of a simple cantilever boom that is rolled up on a cylindrical mandrel.
With the development of inflatable technologies, inflatable structures used as large space antennas are becoming very possible for near term space missions. This paper discusses the development of an inflatable/self-rigidizable structure for a three-meter Ka-band reflectarray antenna.
A new structural modeling and analysis method, the Distributed Transfer Function Method (DTFM), is presented for the applications of space gossamer structures.
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This paper will start from the reviewing of previous developments of the inflatable reflectarray antenna. Details of the current model will then be presented.
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The Global Precipitation Mission (GPM)is currently being developed as a follow-on to the Tropical Ranifall Measuring Mission (TRMM).
Advanced new platform technologies are critical to the realization of the Earth Science Vision in the 2020 timeframe. Examples of the platform technology challenges and current state-of-the-art capabilities are present.
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