摘要
仪器自噪声、海况因素或多波束声纳参数设置不合理等因素导致多波束勘测中不可避免地存在噪音，而剔除假信息，恢复、保留真实信息，是后处理精确成图的必要前提。作者根据使用不同多波束系统的经验，并结合８６３计划海洋领域多波束后处理软件研制的最新成果，提出用趋势面拟合法和投影法对海量多波束勘测数据进行编辑，在投影法的基础上，进一步提出用“水深分层法”、“相邻波束及相邻测线对比编辑”和“参考地形变化趋势编辑”等方法进行多波束数据的精细编辑。
It is inevitable that there exist noises in the multi-beam survey data due to the self-noises of vehicle, the bad sea state and unsuitable multi-beam settings. So elimination of the pseudoinformation and restoration of the genuine information are the necessary premise for postprocessing and accurate mapping of the multi-beam survey data. Based upon the experience of manipulating different multi-beam systems and the latest outcomes of software development about multi-beam post-processing in the marine field of 863 project, this paper proposes the editing methods of multi-beam survey data by the trend-surface fitting method and the projective method. And based on the projective method, the paper brings forward the methods of editing multi-beam survey dare subtly by the method of depth layer, the method of comparing adjacent beams and lines, and the method of the tendency of the topographic changes.
出处
《海洋通报》
CAS
CSCD
北大核心
2000年第3期74-78,共5页
Marine Science Bulletin
