1.55-μm coherent lidar based on SPA sinusoidal frequency demodulation techniques

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2012,（2）
• 页码范围: 78-80
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201210.022801

摘要

A 1.55μm all-solid frequency-modulated continuous-wave (FMCW) coherent lidar based on the sinusoidal frequency demodulation technique for range and velocity measurement is presented.Both the nonlinearity of linear modulation waveform and the difficulty in measuring the frequency of sinusoidal modulation system are circumvented by utilizing segmental-processing-average (SPA) techniques.The results demonstrate that the resolutions of range and velocity measurement are better than 2 mm and 0.1 mm/s,respectively.The system has numerous practical and potential applications in space missions.