公开(公告)号：US20080012765A1

公开(公告)日：2008-01-17

申请号：US11823478

申请日：2007-06-26

Applicant: Jin Xu ,  Yugang Ma ,  Xiaobing Sun ,  Kanzo Okada

Inventor： Jin Xu ,  Yugang Ma ,  Xiaobing Sun ,  Kanzo Okada

IPC: G01S5/04

CPC classification number: G01S13/4418

Abstract: A method, device and system for determining a DOA of a signal are described. Determination of the DOA of the signal may include receiving first and second UWB waveforms of the signal at one or more antennas of a UWB transceiver. A window may be defined in the first and second UWB waveforms such that the window is defined in a leading portion of the signal. First and second amplitude values of the respective first and second UWB waveforms in the window may be calculated. An amplitude ratio may be calculated with the first and second amplitude values and compared with calibration data to determine the DOA of the signal.

Abstract translation: 描述用于确定信号的DOA的方法，装置和系统。 确定信号的DOA可以包括在UWB收发器的一个或多个天线处接收信号的第一和第二UWB波形。 可以在第一和第二UWB波形中定义窗口，使得窗口被定义在信号的前导部分中。 可以计算窗口中的各个第一和第二UWB波形的第一和第二幅度值。 可以用第一和第二振幅值计算振幅比，并与校准数据进行比较以确定信号的DOA。