AbstractSolid-state weather radar transmitters offer great potential for increased reliability and maintainability, which have been proven to be critical for practical use. Although they have been implemented in radar systems, solid-state transmitters are incapable to produce as high peak power as available in klystrons. Pulse compression technique coupled with mismatched methods allows for low peak-power transmission and can improve the range resolution and detection performance on the receiving end of a radar system. However, applying solid-state transmitters with pulse compression in weather radar systems still requires strong evidence for the data reliability. With side-by-side observational experiments, this study compares a solid-state weather radar with combined-pulse transmission mode to a close-by klystron Doppler weather radar in an attempt to: 1) analyze the capability of the solid-state radar in reducing the near-range blind zone; and 2) validate the quality and reliability of data from a solid-state radar that is implemented with the pulse compression technique. The data from the klystron Doppler weather radar is considered accurate and used as a reference for quantitatively evaluating the solid-state radar data quality and reliability. Comparisons and statistics show that the observations from the solid-state radar are consistent with that from the klystron Doppler weather radar, especially in heavy rainfall. Results from the analysis indicate that solid-state weather radar has high estimation accuracy in both near and far ranges.
Journal of Atmospheric and Oceanic Technology – American Meteorological Society
Published: Jul 24, 2017
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