公开(公告)号：US5077699A

公开(公告)日：1991-12-31

申请号：US624014

申请日：1990-12-07

申请人： Anthony P. Passamante ,  Paul A. Labonski ,  Nancy J. Harned ,  Timothy B. Hediger ,  John Ambrose

发明人： Anthony P. Passamante ,  Paul A. Labonski ,  Nancy J. Harned ,  Timothy B. Hediger ,  John Ambrose

IPC分类号： G01S15/89

CPC分类号： G01S15/8902

摘要： Ocean bottom mapping is carried out by projecting a sonic pulse in the formf a fan-shaped beam from a vessel toward the ocean floor, receiving echoes by an array of sonic detectors extending athwartship, repeatedly taking instantaneous, simultaneous, snapshot-like samples of all of the detectors in the array, and, by means of a digital computer, applying a beam-forming transform, such as a Fast Fourier Transform, to the samples, thereby producing a spectrum of amplitudes versus angles. The directions of the floor areas from which the snapshot data emanate are determined from refinement of the peaks in the spectrum of amplitudes, and the distances of the same floor areas from the vessel are determined by the time interval between the pulse and the sample. A bottom profile is constructed from the directions and distances so determined. Two alternative techniques for refining and interpreting spectrum data are described.

摘要翻译： 海底测绘是通过将扇形波束形式的声波脉冲投射到海底来进行的，通过一系列声波探测器接收回波，这些声波探测器延伸横向延伸，反复拍摄瞬时，同步的快照样样 阵列中的所有检测器，以及借助于数字计算机，将诸如快速傅里叶变换的波束成形变换应用于样本，从而产生幅度与角度的频谱。 快照数据发出的楼层区域的方向是根据振幅谱中的峰值的细化来确定的，并且相同楼层面积与容器的距离由脉冲和样本之间的时间间隔确定。 从所确定的方向和距离构造底部轮廓。 描述了用于提炼和解释频谱数据的两种替代技术。