公开(公告)号：US20160192307A1

公开(公告)日：2016-06-30

申请号：US14980122

申请日：2015-12-28

Applicant: KOREA INSTITUTE OF OCEAN SCIENCE AND TECHNOLOGY

Inventor： Seung-Guen KIM ,  Yong-Kon LIM ,  Sea-Moon KIM ,  Jong-Won PARK ,  Changho YUN

IPC: H04W56/00

CPC classification number: H04W56/004 ,  H04W56/0065

Abstract: Disclosed is an apparatus and method for estimating a Doppler shift for underwater communication. The apparatus includes: a multipath delay profile determiner for detecting a correlation of a known signal 1 and a received packet signal and time (T10) at a point having maximum energy of the correlation, and detecting a multipath delay profile at the time (T10); a correlation calculator for calculating a correlation between a correlation of a known signal 2 and the received packet signal, and the multipath delay profile; a maximum value detector for detecting time (T20) at a point having maximum energy of the correlation calculated by the correlation calculator; and a Doppler shift estimator for determining a Doppler shift using a difference between the time (T10) and the time (T20) at points having respective maximum energy.

Abstract translation: 公开了一种用于估计水下通信的多普勒频移的装置和方法。 该装置包括：多径延迟分布确定器，用于检测已知信号1与接收分组信号的相关性，以及在具有最大相关能量的点处的时间（T10），并且在时间（T10）检测多径延迟分布， ; 相关计算器，用于计算已知信号2与所接收分组信号的相关性与多径延迟分布之间的相关性; 最大值检测器，用于检测由所述相关计算器计算的所述相关的最大能量点的时间（T20）; 以及多普勒频移估计器，用于使用在具有各自的最大能量的点处的时间（T10）和时间（T20）之间的差来确定多普勒频移。