发明授权
- 专利标题: Antenna arrangement for DOA estimation
- 专利标题(中): DOA估计的天线布置
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申请号: US13453364申请日: 2012-04-23
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公开(公告)号: US08674879B2公开(公告)日: 2014-03-18
- 发明人: Andreas Nilsson , Fredrik Athley
- 申请人: Andreas Nilsson , Fredrik Athley
- 申请人地址: SE Stockholm
- 专利权人: Telefonaktiebolaget L M Ericsson (Publ)
- 当前专利权人: Telefonaktiebolaget L M Ericsson (Publ)
- 当前专利权人地址: SE Stockholm
- 代理机构: Rothwell, Figg, Ernst & Manbeck, P.C.
- 主分类号: G01S3/74
- IPC分类号: G01S3/74 ; G01S3/22
摘要:
An antenna arrangement including at least two antenna functions arranged to cover a certain angular sector, each antenna function comprising a corresponding antenna port. The antenna arrangement is configured to perform: a first direction of arrival (DOA) estimation for a transmitting device at a first frequency, and a second DOA estimation for the transmitting device at a second frequency, wherein the second frequency has a larger magnitude than the first frequency, and wherein at least one second frequency grating lobe is apparent in the angular sector at the second frequency. The antenna arrangement is configured to: distinguish the at least one second frequency grating lobe from a second frequency main lobe using results from the first DOA estimation, and identify a pointing direction of the second frequency main lobe as a resulting DOA estimation. Related methods are also described.
公开/授权文献
- US20130278463A1 ANTENNA ARRANGEMENT FOR DOA ESTIMATION 公开/授权日:2013-10-24