Development of a novel method for multibeam sonar backscatter calibration

多波束声纳反向散射校准新方法的开发

• 批准号: 470332-2014
• 负责人: StAmour, Wayne
• 金额: $ 1.82万
• 依托单位: Nova Scotia Community College
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 1
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=564084
• 关键词: Development; novel; method; multibeam; sonar

The pace of development in ocean mapping technologies has accelerated over the past few decades, with rapid advancement in sonar technology stemming from improvements in geographic positioning capabilities, computer processing power, and sonar hardware and software design. Nevertheless, there are still significant technical and scientific challenges associated with the adoption and application of these mapping technologies, which is impeding the pace of growth of a number of ocean sector industries who could benefit from these technologies. One major challenge is the acquisition and processing of MBES backscatter data (an acoustic measurement from multibeam sonar systems providing information on seafloor characteristics). Quality Positioning Services BV (QPS) are developing software tools for this purpose, but are facing challenges due to the uncalibrated nature of the backscatter data, and inconsistencies in the way the backscatter signal is measured and recorded between multibeam sonars offered by different sonar manufacturers. QPS have a need to undertake research to develop and test novel backscatter calibration approaches in the field from which they can provide recommendation on in-field calibration/standardization of backscatter to their clients, and also develop post processing tools in-house within their software suite for posteriori MBES backscatter calibration/correction. NSCC will partner with QPS, in this research project to undertake a proof-of-concept field trial to test new, commercially available passive sonar reflection technologies for this purpose. The project will allow QPS to evaluate these passive sonar reflection devices for this application, and assess the feasibility of developing software tools for correction and processing of backscatter data sets using information from a calibration site.

过去几十年来，海洋测绘技术的发展步伐加快，地理定位能力、计算机处理能力以及声纳硬件和软件设计的改进使声纳技术快速进步。尽管如此，这些测绘技术的采用和应用仍然存在重大的技术和科学挑战，这阻碍了许多可以从这些技术中受益的海洋行业的发展步伐。一个主要挑战是采集和处理 MBES 反向散射数据（多波束声纳系统的声学测量，提供有关海底特征的信息）。 Quality Positioning Services BV (QPS) 正在为此目的开发软件工具，但由于反向散射数据的未校准性质以及不同声纳制造商提供的多波束声纳之间测量和记录反向散射信号的方式不一致而面临挑战。 QPS 需要开展研究，在现场开发和测试新颖的反向散射校准方法，以便为客户提供反向散射现场校准/标准化的建议，并在其软件套件中开发内部后处理工具，用于后验 MBES 反向散射校准/校正。 NSCC 将与 QPS 合作，在该研究项目中进行概念验证现场试验，以测试用于此目的的新型商用被动声纳反射技术。该项目将使 QPS 能够针对该应用评估这些被动声纳反射设备，并评估开发软件工具的可行性，以使用来自校准站点的信息来校正和处理反向散射数据集。