华中科技大学学报：自然科学版2011，Vol.39Issue(9)：25-28,4.
水下航行体尾迹激光雷达探测系统的研制
Development of lidar detection systems for underwater vehicle wakes
摘要
Abstract
Lidar detection system used for underwater vehicle wakes was developed to detect low-den- sity micro-bubbles of the underwater vehicle wakes. A coaxial optical system was designed and employed for the first time. Back-scattering signals were obtained for the true sense. It was concluded that the APD （avalanche photodiode） had more advantages than the PMT （photomultiplier tube） in the field of underwater laser detection. A dual-mode APD adaptive control system of bias voltage with temperature was designed. The compensational error of APD caused by discreteness of individual per- formance was effectively eliminated. Based on the electromagnetic compatibility theory, the design of the pulse laser was optimized to solve the electromagnetic interference problems by the high-power pulse laser in transceiver detection system. The typical detection data, from the micro-bubbles located in different locations and different thickness, were analyzed by this system. The experimental results show that the system can fully meet the requirement for the wake detection.关键词
激光雷达/水下航行体/后向散射/气泡/尾流/同轴光学系统/电磁兼容Key words
lidar/underwater vehicle wakes/back-scattering/bubble/wake/coaxial optical system/electromagnetic compatibility分类
信息技术与安全科学引用本文复制引用
梁善勇,王江安,韦文涛,石晟玮..水下航行体尾迹激光雷达探测系统的研制[J].华中科技大学学报：自然科学版,2011,39(9):25-28,4.基金项目
“十一五”预研项目（51303050302）. （）
