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An Onboard Processor and Adaptive Scanning Controller for the Second-Generation Precipitation Radar.
- Source :
- IEEE Transactions on Geoscience & Remote Sensing; Apr2005, Vol. 43 Issue 4, p802-812, 11p
- Publication Year :
- 2005
-
Abstract
- Technology for the 14- and 35-GHz Second-Generation Precipitation Radar (PR-2) is currently being developed by the National Aeronautics and Space Administration Jet Propulsion Laboratory to support the development of future spaceborne radar missions. PR-2 will rely on high-performance onboard processing techniques in order to improve the observation capabilities (swath width, spatial resolution, and precision) of a low-earth orbiting rainfall radar. Using field-programmable gate arrays (FPGAs), we have developed a prototype spaceborne processor and controller module that will support advanced capabilities in the PR-2 such as autotargeting of rain and compression of rainfall science data. In this paper, we describe the new technology components designed for the onboard processor, including an FPGA-based 40 × 10<superscript>9</superscript> op/s pulse-compression receiver/filter with a range sidelobe performance of -72 dB, and an adaptive scanning controller which yields a six-fold increase in the number of radar looks over areas of precipitation. [ABSTRACT FROM AUTHOR]
- Subjects :
- RADAR
RAINFALL
METEOROLOGICAL precipitation
ELECTRONIC pulse techniques
Subjects
Details
- Language :
- English
- ISSN :
- 01962892
- Volume :
- 43
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Geoscience & Remote Sensing
- Publication Type :
- Academic Journal
- Accession number :
- 16642554
- Full Text :
- https://doi.org/10.1109/TGRS.2005.844670