Acta Optica Sinica, Volume. 31, Issue 5, 512001(2011)
Simulative Detection of Vibration-Phase Error of Synthetic Aperture Lidar
In order to detect the phase error caused by platform vibration of synthetic aperture lidar, a new method of vibration measurement was proposed, which extracted the detection signal phase directly with heterodyne balanced detection and quadrature signal processing technology. Then the errors caused by the unbalance between the two quadrature signals were corrected and the obtained phase sensitivity was 1.45 rad. The experiment showed that this method not only can accurately measure phase variation caused by small vibration with low frequency, but also was insensitive to the amplitude of echo signals′ fluctuation, which was different from the laser Doppler vibrometer.
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Xu Xianwen, Hong Guanglie, Ling Yuan, Hu Yihua, Shu Rong. Simulative Detection of Vibration-Phase Error of Synthetic Aperture Lidar[J]. Acta Optica Sinica, 2011, 31(5): 512001
Category: Instrumentation, Measurement and Metrology
Received: Oct. 28, 2010
Accepted: --
Published Online: May. 9, 2011
The Author Email: Xianwen Xu (xuxianwen3@163.com)