Doppler Velocity Bias Mitigation Through Sidelobe Whitening for Multistatic Weather Radar

Byrd, Andrew D.; Palmer, Robert D.; Fulton, Caleb J.

doi:10.1109/TGRS.2020.2997882

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Doppler Velocity Bias Mitigation Through Sidelobe Whitening for Multistatic Weather Radar

2021
By Byrd, Andrew D. ; Palmer, Robert D. ; Fulton, Caleb J.
Source: IEEE Transactions on Geoscience and Remote Sensing, 59(2), 1130-1142

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Journal Title:

IEEE Transactions on Geoscience and Remote Sensing
Personal Author:

Byrd, Andrew D. ; Palmer, Robert D. ; Fulton, Caleb J.

Byrd, Andrew D. ; Palmer, Robert D. ; Fulton, Caleb J. Less -
NOAA Program & Office:

CIMMS (Cooperative Institute for Mesoscale Meteorological Studies) ; OAR (Oceanic and Atmospheric Research) ; NSSL (National Severe Storms Laboratory)

CIMMS (Cooperative Institute for Mesoscale Meteorological Studies) ; OAR (Oceanic and Atmospheric Research) ; NSSL (National Severe Storms Laboratory) Less -
Description:

Multistatic radar is a promising option for the low-cost collection of multiple-Doppler weather observations. However, due to the use of low-directivity antennas at the receivers in these systems, they typically suffer from extremely high two-way sidelobe levels compared to monostatic radars. Doppler velocity estimation biases induced by sidelobe contamination have proved to be a significant obstacle to more widespread adoption of this technology. It has been noted in the existing literature that the technique of sidelobe whitening, first developed for use in monostatic systems, has the potential to mitigate this issue. However, the existing sidelobe whitening algorithm is not suitable for use in this application, as it is only capable of achieving whitening in the two-way antenna pattern, whereas an algorithm to be used in the multistatic case must be able to achieve this result in the transmit pattern alone. This article proposes an alternate sidelobe whitening technique based on the method of alternating projections which allows for effective whitening in the one-way antenna pattern. A multistatic weather radar time-series simulator is used in conjunction with numerical weather prediction data to demonstrate the effectiveness of this method in mitigating multiple-Doppler measurement biases.
Keywords:

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Doppler Effect Meteorological Radar Meteorology Phased Arrays Radar Antennas Receivers
Source:

IEEE Transactions on Geoscience and Remote Sensing, 59(2), 1130-1142
DOI:

https://doi.org/10.1109/TGRS.2020.2997882
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Journal Article
Funding:

Grant no. NA15OAR4320115
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urn:sha256:d4b1e2aa8aa94fb041ba4492d9c15f06bfb18bd1f9fad881eec265debaa1e815
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Doppler Velocity Bias Mitigation Through Sidelobe Whitening for Multistatic Weather Radar

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