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Low-Altitude Windshear Estimation Method Based on Four-Dimensional Frequency Domain Compensation for Fuselage Frustum

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  • 1Tianjin Key Lab for Advanced Signal Processing, Civil Aviation University of China, Tianjin 300300, China.

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Summary

This study introduces a novel method for estimating low-altitude wind speed using a fuselage conformal array radar. The technique effectively suppresses clutter and accurately measures wind velocity, improving aviation safety.

Keywords:
clutter suppressionfuselage frustum conformal arraylow-altitude windshear estimationspace–time adaptive processingtarget detectionweather radar

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Area of Science:

  • Aerospace Engineering
  • Radar Systems
  • Meteorology

Background:

  • Accurate low-altitude wind speed estimation is crucial for aviation safety.
  • Traditional methods face challenges in clutter suppression and precise measurement.
  • Fuselage conformal array radar offers potential for enhanced wind sensing capabilities.

Purpose of the Study:

  • To propose a novel low-altitude wind speed estimation method.
  • To enhance clutter suppression for windshear targets.
  • To improve the accuracy of wind velocity measurements.

Main Methods:

  • Utilizing a fuselage frustum conformal array radar system.
  • Applying four-dimensional joint phase compensation in Doppler and space-frequency domains.
  • Employing space-time Adaptive Processing (STAP) for clutter suppression.
  • Estimating wind velocity by extracting maximum Doppler values.

Main Results:

  • Effective suppression of clutter in low-altitude environments.
  • Accurate estimation of wind speed.
  • Demonstrated performance through simulation results.

Conclusions:

  • The proposed method provides a robust solution for low-altitude wind speed estimation.
  • The technique significantly improves clutter suppression compared to conventional approaches.
  • This advancement contributes to enhanced aviation safety and weather monitoring.