| 瞬态高速光子多普勒测速技术研究现状及展望 |
| Research Status and Prospect of Transient High Speed Photon Doppler Velocimetry |
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| 中文摘要: |
| 面对短时间、高速度等极端测量条件的挑战，光子多普勒测速系统朝向更大测速范围、更高时间分辨力、更高灵敏度和多点测量能力四个方面快速发展。首先文章详细介绍了光子多普勒系统测速原理和背景；其次对测量速度在100 m/s以上、记录时间为纳秒级的瞬态高速光子多普勒测速系统的经典改进方法和发展现状进行了分类和总结；然后着重介绍时域展宽技术中时间拉伸和时间透镜两种方法在光子多普勒测速系统中的应用，结合两者时间放大特点和应用潜力进行了探讨；最后总结了瞬态高速光子多普勒测速系统现阶段遇到的问题并对其未来发展做出展望。 |
| 英文摘要: |
| Facing the challenge of extreme measurement conditions such as short time and high speed, the photonic Doppler velocimetry (PDV) system develops rapidly in four aspects: larger dynamic range, higher sensitivity, higher temporal resolution and multi-channel measurement ability. Firstly, the principle and background of photonic Doppler velocimetry is introduced in detail. Secondly, the classical improvement methods and development status of transient high-speed PDV system with measuring speed above 100m/s and recording time of nanoseconds are classified and summarized. Then, the application of time stretches and time lens in the PDV system is emphatically introduced, and the characteristics and potential of time amplification are discussed. Finally, the problems of the transient high speed PDV system are summarized and its future development is prospected. |
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| 中文关键词: 瞬态高速 光子多普勒测速 时域展宽 时间拉伸 时间透镜 |
| 英文关键词:transient high-speed PDV time domain broadening time-stretched time-lens |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2021.02.07 |
| 引用本文：吕林杰，武腾飞*，韩继博，夏传青，张大治，梁志国.瞬态高速光子多普勒测速技术研究现状及展望[J].计测技术,2021,(2):. |
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