Innovative wind field imaging captures transient wind data at 2 Hz in a 5 km range, highlighting advantages over Doppler wind lidar.
To capture transient wind field information, a multi-beam wind field imaging camera is proposed and validated. Equipped with a 1(seed) × 10(amplifier) transmitter and a single-aperture multi-channel telescope, the new system enables wind imaging at a frame rate of 2 Hz, over a 27° field of view, and within a 5-km detection range. Its performance is validated through comparative experiments against a simulated scanning coherent Doppler wind lidar, which exhibits time lags across individual lines of sight. The transient wind camera eliminates wind measurement errors induced by wind field evolution during the usual scanning cycle. Furthermore, it shows superiority in measuring turbulent spatial spectra.
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Yuan et al. (2025) studied this question.
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