Combined Acoustic and Optical Imaging of Crustacean Macrozooplankton

甲壳类大型浮游动物的声光联合成像

• 批准号: 9421876
• 负责人: Jules Jaffe
• 金额: $ 57.95万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-04-01 至 1999-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9421876&HistoricalAwards=false
• 关键词: Combined; Acoustic; Optical; Imaging; Crustacean

9421876 Jaffe This ocean sciences technology development project continues development of a 3-dimensional sonar imaging system to be used in zooplankton dynamics and ecological research. Work will be undertaken to fabricate an Optical-Acoustic Submersible Imaging System (OASIS), that will allow tracking of zooplankton diel cycles, migrations and nocturnal activity patters. These behavioral data will help to model predator-prey encounters, euphausiid bioenergetics, and diel vertical migration behavior under realistic environmental conditions. The system will be deployable from a remotely-operated underwater vehicle and will simultaneously record both the target strength (acoustic) and a high resolution optical image. This combined technique will help verify acoustic survey information and allow extrapolation of past and present data. Acoustical backscattering will be correlated to animal orientation and this relationship, as well as other optically verified correlations, will permit a better interpretation of in situ acoustic data. The acoustic system has been deployed successfully. Limited trials with camera imaging systems have also been completed. This work combine these two systems. The optical system is to be operated in a strobe mode, triggered from the sonar imaging system. In this way, when a target is found in the sonar image at the appropriate location, the strobe light will be triggered, and an optical image will be recorded.

9421876 Jaffe 该海洋科学技术开发项目继续开发用于浮游动物动力学和生态研究的 3 维声纳成像系统。 将致力于制造光声潜水成像系统（OASIS），该系统将能够跟踪浮游动物的昼夜周期、迁徙和夜间活动模式。 这些行为数据将有助于模拟捕食者与猎物的相遇、磷虾生物能量学和真实环境条件下的昼夜垂直迁移行为。 该系统可通过远程操作的水下航行器进行部署，并将同时记录目标强度（声学）和高分辨率光学图像。 这种组合技术将有助于验证声学调查信息并允许推断过去和现在的数据。 声学反向散射将与动物方向相关，这种关系以及其他光学验证的相关性将允许更好地解释原位声学数据。 音响系统已成功部署。 相机成像系统的有限试验也已经完成。 这项工作结合了这两个系统。 光学系统将在由声纳成像系统触发的频闪模式下运行。 这样，当在声纳图像中的适当位置发现目标时，将触发频闪灯，并记录光学图像。