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Related Experiment Video

Updated: May 10, 2025

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

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Published on: February 13, 2018

Simulation and Analysis of Coherent Wind Lidar Based on Range Resolution.

Jiaxin Chen¹, Hong Li¹, Weiwei Zhan¹

¹National Institute of Natural Hazards, Beijing 100085, China.

Sensors (Basel, Switzerland)

|April 26, 2025

Summary

This study developed a modular coherent Doppler wind lidar simulation system to improve wind field detection. Pulse modulation techniques enhance range resolution and accuracy for critical applications like aviation and wind energy.

Keywords:

coherent wind lidar range resolution short-pulse method simulation model

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Last Updated: May 10, 2025

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

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Published on: February 13, 2018

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

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Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

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Published on: March 12, 2019

Area of Science:

Atmospheric Science
Optical Remote Sensing

Background:

Accurate wind field observation is crucial for climate studies, weather forecasting, aviation safety, and wind energy.
Coherent Doppler wind lidar offers superior detection capabilities but faces challenges in achieving high range resolution for specific applications.

Purpose of the Study:

To establish a modular coherent Doppler wind lidar simulation system for multi-parameter analysis.
To investigate the impact of pulse modulation on wind speed inversion and range resolution.
To enhance wind speed measurement accuracy and resolution for demanding applications.

Main Methods:

Developed an integrated hardware-transmission-processing collaborative modeling system.
Implemented pulse modulation and a Mach-Zehnder modulator for odd-even pulse pair generation.
Utilized a differential correlation algorithm for enhanced range resolution in wind speed inversion.

Main Results:

Achieved simulated wind speed measurements with a 4.5 m range resolution.
Demonstrated that pulse modulation effectively mitigates wind speed errors associated with short-pulse lidar.
Validated the system's capability for in-depth analysis within a 1.2 km detection range.

Conclusions:

The modular coherent Doppler wind lidar simulation system provides a reliable framework for practical wind field measurements.
Pulse modulation techniques are effective in improving both range resolution and accuracy in wind speed detection.
The developed system addresses the challenges of high-range resolution wind detection for critical applications.