水运工程多波束测深作业要求的研究

对水运工程多波束测深作业要求中一系列的技术问题进行了深入研究.以满足波束脚印无缝衔接和探寻水底目标物为约束,分别给出了测船最大限速的计算式.通过数值分析探讨了目前几种常用多波束仪器测线布设的理论宽深比和实际宽深比.对影响多波束测深精度的五个重要参数:横摇偏角、纵摇偏角、艏摇偏角、时延、声速剖面等分别做了详细介绍,并且给...

Study on Operation Requirements in Multibeam Echosounding for Port and Waterway Engineering

A series of technical problems about operation requirements in multibeam echo sounding for port and waterway engineering are studied deeply.The maximum velocities of bathymetric boat are derived from the two constraint conditions that the footprints of beam are slitless and the object on seafloor can be detected,respectively.By numerical analysis,the ratios of track width to water depth are discussed in theory and practice for several common multibeam echo-sounders.The five important parameters,which affect the precision of multibeam echo sounding,are introduced in detail.The five parameters are roll drift-angle,pitch drift-angle,yaw drift-angle,latency（time-lag）and velocity-profile of sound underwater.The methods and the formulas of adjusting the parameters are given respectively.