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June 13, 2026Remote SensingOpen Access

Absolute Calibration of Weather Radars Using Metal Spheres Based on Sector Scanning

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Authors

FYFei YeXWX WangFLFeifei Li

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Overview

Randomized trial demonstrates improved calibration accuracy in weather radars, indicating enhanced reliability.

Key Points

  • This study aims to improve the absolute calibration process of weather radars using a new sector scanning method.
  • Suspended standard metal spheres from UAVs for calibration.
  • Used sector scanning to construct a three-dimensional scanning volume.
  • Applied drive backlash correction and quadratic Gaussian surface fitting for data processing.
  • Average calibration error of antenna pointing is 0.08°.
  • Average error of echo intensity calibration is 0.3 dB.
  • Achieved a range resolution of 6.6 m and an average radial ranging error of 14 m.

Cite This Study

Ye et al. (2026) studied this question.

synapsesocial.com/papers/6a2cf62dfaef96ed7f057f87https://doi.org/10.3390/rs18121942
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Weather Radar Calibration Method Based on UAV-Suspended Metal Sphere2024 · 2 citations
  2. 2UAV-Assisted Weather Radar Calibration: A Theoretical Model for Wind Influence on Metal Sphere Reflectivity2024
  3. 3An In Situ Calibration Method for Antenna Parameters of S-Band Dual-Polarization Weather Radar Based on High-Density Solar Sector Scans2026
  4. 4Implementation of a UAV-aided calibration method for a mobile dual-polarization weather radar2024
  5. 5A Novel Calibration Method for Networked X-Band Radar Based on Opposing RHI Scans2026