公开(公告)号：US20180364346A1

公开(公告)日：2018-12-20

申请号：US16062663

申请日：2016-12-16

申请人： SUEZ GROUPE

发明人： Guillaume SICOT ,  Nicolas THOMAS

IPC分类号： G01S13/44 ,  G01S7/41 ,  G01S13/48 ,  G01S13/02 ,  G01S7/28

摘要： A method for spectral estimation of the clutter of a haline liquid medium received by an oceanographic radar, such as a lake, a river, a sea or an ocean, from an array of antennas including at least three antennas. The method includes forming at least two sub-arrays of antennas from the array of antennas, each of the sub-arrays including at least one antenna less than the array of antennas, calculating a beam in one direction for each sub-array of antennas, locating in azimuth all the sources included in the beam from data of the beam coming from each of the sub-arrays, estimating the energy of each of the located sources, selecting a source, referred to as preferred source, among a plurality of sources according to a predetermined criterion when the beam includes a plurality of sources.