TY  - JOUR
PY  - 2020//
TI  - Early forest-fire detection using scanning polarization lidar
JO  - Applied optics (2004)
A1  - Xian, Jinhong
A1  - Xu, Wenjing
A1  - Long, Chuande
A1  - Song, Qingchun
A1  - Yang, Shaochen
SP  - 8638
EP  - 8644
VL  - 59
IS  - 28
N2  - As forest terrain is complex, containing leaves and other obstacles, it is difficult to distinguish the signal of forest-fire smoke when using single-channel lidar. To address this difficulty, a scanning micropulse polarization lidar system is developed, and a new method to detect forest fires is proposed in this study. Based on the characteristics of the depolarization ratio of in-scene obstacles, a matrix is constructed to remove obstacle signals, which in turn reduces the misidentification rate. Artificial forest-fire tests are carried out to verify the correctness of the proposed method and the feasibility of early forest-fire detection using the scanning polarization lidar system. In the working mode, the developed polarizing lidar system can locate a forest fire within three minutes with the proposed method. The experimental results show that forest fires can be accurately detected in real time when using scanning polarization lidar.<p />  <p>Language: en</p>
LA  - en
SN  - 1559-128X
UR  - http://dx.doi.org/10.1364/AO.399766
ID  - ref1
ER  -