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METHOD FOR REAL-TIME DETERMINATION OF DEPTH DURING BOTTOM TOPOGRAPHY SURVEY WITH SIDE-SCAN SONAR

机译：侧扫声纳实时确定底部层析成像测量深度的方法

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FIELD: physics, acoustics.;SUBSTANCE: invention relates to hydroacoustics. The method for real-time determination of depth during bottom topography survey with side-scan sonar, with subsequent reconstruction thereof, includes measuring the delay time of in-phase signals of bottom reverberation received by two antennae, spaced apart on the vertical by several wavelengths of elastic vibrations, and resolving measurement uncertainty, calculating depth, wherein to achieve the technical result, the instantaneous frequency of the signal in a lower channel is recorded each time phases interfering signals match, measuring the delay time of the appearance of a signal in the upper channel with the same instantaneous frequency value; multiplying the measured value of delay time with the value of the operational frequency of the interferometer; determining the sequence numbering of the series of measurements of the delay in arrival of in-phase signals in the period of each probing in real time; calculating depths which correspond to each interference band; and subsequent reconstruction of the bottom topography based on the depth measurements includes estimating representativeness (significance) critical points of the topography by presenting a smooth continuous surface of the bottom topography using a Kronrod-Rib tree. The side-scan sonar includes a probing pulse generator 1, a receiving-transmitting upper antenna 2, a time t_n measuring circuit 3, a receiving-transmitting lower antenna 4, an interferometer 5, a time Δt_n measuring circuit 6, a selector 7, a frequency detector 8, a reference generator 9, a storage device 10, an amplitude comparing circuit 11, a frequency detector 12, a computer 13, an antenna switch 14, a display and recording device 15.;EFFECT: high accuracy of determining depth using side-scan sonar and subsequent reconstruction of the bottom topography based on the depth measurements.;7 dwg, 2 tbl

机译：技术领域本发明涉及水声技术。用于利用侧面扫描声纳在底部地形测量期间实时确定深度的方法，并对其进行后续重建，该方法包括：测量由在垂直方向上隔开若干个波长的两个天线接收的底部混响的同相信号的延迟时间弹性振动，解决测量不确定性，计算深度，其中，为达到技术效果，每当相位干扰信号匹配时，记录下通道中信号的瞬时频率，测量信号在通道中出现的延迟时间具有相同瞬时频率值的上通道;将延迟时间的测量值乘以干涉仪的工作频率值;实时确定在每个探测周期内同相信号到达延迟的一系列测量的序列号;计算与每个干扰带相对应的深度;基于深度测量的底部地形的后续重建包括通过使用Kronrod-Rib树呈现底部地形的平滑连续表面来估计地形的代表性（重要性）临界点。侧扫声纳包括探测脉冲发生器1，接收发射的上天线2，时间t _{n 测量电路3，接收发射的下天线4，干涉仪5，时间Δt _{n 测量电路6，选择器7，频率检测器8，参考发生器9，存储设备10，幅度比较电路11，频率检测器12，计算机13，天线开关14 ，一个显示和记录设备。15;效果：使用侧面扫描声纳确定深度的准确度以及随后基于深度测量结果对底部地形的重建。7 dwg，2 tbl}}

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公开/公告号RU2521127C2

专利类型
公开/公告日2014-06-27

原文格式PDF
申请/专利权人 OTKRYTOE AKTSIONERNOE OBSHCHESTVO GOSUDARSTVENNYJ NAUCHNO-ISSLEDOVATELSKIJ NAVIGATSIONNO-GIDROGRAFICHESKIJ INSTITUT (OAO GNINGI);
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申请/专利号RU20120144838
发明设计人 CHERNJAVETS VLADIMIR VASILEVICH;KURSIN SERGEJ BORISOVICH;ZHILIN DENIS MIKHAJLOVICH;ZENKOV ANDREJ FEDOROVICH;ZHUKOV JURIJ NIKOLAEVICH;STAVROV KONSTANTIN GEORGIEVICH;
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申请日2012-10-22
分类号G01S15/89;
国家 RU
入库时间 2022-08-21 15:38:30

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