Cross-Polar Canceller (XPC): A Technique to Reduce Cross-Polar Pattern Contamination in Polarimetric Weather Observations

Salazar, César; Schvartzman, David; Cheong, Boon Leng; Palmer, Robert D.

doi:10.1109/past49659.2022.9975050

Cited by 4 publications

(1 citation statement)

References 12 publications

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“…This solution to the calibration challenge is an important advantage of fully digital PARs. Further discussion on the use of this approach for the Horus system appears in Section V. Recent work has also shown that polarimetric performance enhancements can be achieved with a fully digital array using the so-called cross-polar canceller (XPC) technique [61], [62], [63]. This method assigns a small number of elements from the entire array in an attempt to mitigate cross-polar contamination by transmitting the opposite phase from the original signal.…”

Section: A Calibration -Polarimetric Requirements For Weather Observa...mentioning

confidence: 99%

Horus—A Fully Digital Polarimetric Phased Array Radar for Next-Generation Weather Observations

et al. 2023

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Weather radars have become indispensable to meteorologists and the general public for both understanding and awareness of high-impact weather events and as part of the operational warning infrastructure. In the U.S., the operational weather radar network is composed of approximately 160 WSR-88D radars, which are S-band, dish-based, polarimetric Doppler radars. This work reports on the development of a fully digital phased array weather radar that is being used to assess the potential of such technology as a replacement for the WSR-88D radars. The "Horus" radar is a truck-based, S-band, fully digital polarimetric phased array radar. Fully digital systems hold promise for meeting some of the greatest technical challenges facing the meteorological community, such as the effective integration of dual-polarization capability with phased array beam agility. This paper describes the fully digital Horus phased array weather radar that was recently completed by the Advanced Radar Research Center (ARRC) at the University of Oklahoma (OU). An overview of the advantages and challenges facing fully digital arrays for weather observations is provided along with potential mitigation strategies. Initial weather observations with Horus are given with the goal of assessing the radar scanning capabilities and most importantly the polarimetric quality. Finally, a vision for the future of next-generation weather radar operations is given with an eye toward leveraging the scalable design of Horus for highresolution weather observations.

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Section: A Calibration -Polarimetric Requirements For Weather Observa...mentioning

confidence: 99%

Horus—A Fully Digital Polarimetric Phased Array Radar for Next-Generation Weather Observations

et al. 2023

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Far-Field Antenna Pattern Measurements Using a UAS-Based Dynamic Gimbal Scan System

Segales,

Schvartzman,

Burdi

et al. 2024

IEEE Trans. Antennas Propagat.

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Cross-Polarization and Sidelobe Suppression Using Rotational Symmetry Tiling of Identical T-Shaped Subarrays

Zhou,

Pang,

Wang

et al. 2024

IEEE Trans. Antennas Propagat.

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Cross-Polar Canceller (XPC): A Technique to Reduce Cross-Polar Pattern Contamination in Polarimetric Weather Observations

Cited by 4 publications

References 12 publications

Horus—A Fully Digital Polarimetric Phased Array Radar for Next-Generation Weather Observations

Horus—A Fully Digital Polarimetric Phased Array Radar for Next-Generation Weather Observations

Far-Field Antenna Pattern Measurements Using a UAS-Based Dynamic Gimbal Scan System

Cross-Polarization and Sidelobe Suppression Using Rotational Symmetry Tiling of Identical T-Shaped Subarrays

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