What is the concept of 0.1m/s? Equivalent to 1/50 of a person's walking speed. How can Doppler LiDAR achieve such high accuracy? The answer lies in its optical coherent detection+high frequency stable laser source+advancedTriple guarantee of signal processing algorithms.

1. 1.5 μ m fiber laser: stable wavelength, narrow linewidth, ensuring reliable Doppler frequency shift measurement reference;

2. Balanced detection technology: suppresses background noise and improves signal-to-noise ratio;

3. Adaptive filtering algorithm: eliminates non aerosol interference signals such as birds and raindrops;

4. Temperature pressure compensation model: correcting the influence of atmospheric refractive index on optical path length.

Actual measurements have shown that at a wind speed of 10m/s, the standard deviation of continuous 1-hour measurements is less than 0.05m/s. Its 7.5-meter distance resolution can even distinguish the wind speed difference within 50 meters before and after the wind turbine tower, providing key input for wake modeling.

In addition, the Doppler laser wind radar adopts beam deflection technology without moving parts (such as MEMS or fiber phased array) to avoid the wear and tear problems of traditional mechanical scanning, with a lifespan of over 10 years.