【摘要】 为了满足小平台声呐声学三维成像的需要,并对海底地形进行估计,提出了一种以OMAP5912双核处理芯片为核心处理器,基于DSP内核实时实现的多子阵幅度-相位联合检测算法.利用ARM内核自主开发了三维显示函数库,实现了基于LCD的海底地形信息三维重构显示,并利用QT/E设计了人机交互界面.此小平台三维成像声呐系统在松花湖外场实验过程中性能稳定,能够有效完成湖底三维地形信息的伪彩显示,充分验证了该方法的有效性、实用性与优越性.更多还原

【Abstract】 In order to meet the demand in acoustical three-dimension(3D) imaging for small platform sonar and carry out the evaluation for submarine topography,a multi-subarray amplitude-phase joint detection algorithm with a dual-core OMAP5912 chip as a core processor was proposed based on the real time realization of DSP inner core.A set of 3D display fuction library was developed with ARM inner core,and 3D reconstruction display for submarine topographic information based on LCD was realized.In addition,a man-machine interface was designed by using QT/E.The present small platform 3D imaging sonar system exhibits the stable properties during the Songhua Lake field experiment,and can effectively accomplish the pseudo-color display for the 3D topographic information of lake-floor.Moreover,the effectivity,practicality and superiority of the proposed method has been proved sufficiently.更多还原