Chinese Optics Letters, 2012, 10 (12): 122802, Published Online: Nov. 28, 2012
Delayed range-gating super-resolution imaging lidar with high accuracy Download: 602次
280.3640 Lidar 280.3400 Laser range finder 110.2970 Image detection systems 200.4560 Optical data processing
Abstract
We present a range-gating delayed detection super-resolution imaging lidar with high accuracy based on the signal intensities of three consecutive delay samples. The system combines the range and signal intensity information from multi-pulse detections to calculate the pulse peak position under the assumption of a Gaussian pulse shape. Experimental results indicate that the proposed algorithm effectively calculates pulse peak position and exhibits excellent accuracy with super-resolution. Accuracy analysis shows that accuracy is best improved by enhancing signal-to-noise ratio, strategically selecting samples, reducing pulse width, and appropriately choosing the delayed periods between samples.
Long Wu, Yong Zhang, Lu Cao, Ning Zhao, Jie Wu, Yuan Zhao. Delayed range-gating super-resolution imaging lidar with high accuracy[J]. Chinese Optics Letters, 2012, 10(12): 122802.