1.55-\mu m coherent lidar based on SPA sinusoidal frequency demodulation techniques

Autor:	Ningfang Song, Dezhao Yang, Yudong Jia, Pan Ou, Ming-Jie Sun, Zhili Lin
Rok vydání:	2012
Předmět:	Physics Frequency demodulation business.industry Interference (wave propagation) Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Nonlinear system Optics Lidar Modulation Range (statistics) Waveform Electrical and Electronic Engineering business Frequency modulation
Zdroj:	Chinese Optics Letters. 10:022801-22803
ISSN:	1671-7694
DOI:	10.3788/col201210.022801
Popis:	A 1.55-\mu m 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::06377e9845a0d6b2ac363ca9d715c3c0 https://doi.org/10.3788/col201210.022801 Zobrazit plný text záznamu