Disclosed is an apparatus for estimating the location of a remote node. The apparatus comprises an antenna array comprising a plurality of elements in a fixed spatial arrangement, at least one element being a transmitting element configured to transmit a first wireless signal to the remote node, and at least two elements being receiving elements configured to receive a second wireless signal transmitted by the remote node in response to the first wireless signal. The apparatus further comprises a signal processing unit connected to the antenna array, the signal processing unit being configured to: estimate a plurality of round trip distances using the wireless signals, each round trip distance being from a transmitting element to the remote node and back to a receiving element; and estimate the location of the remote node using the round trip distance estimates.
申请公布号
WO2013010204(A1)
申请公布日期
2013.01.24
申请号
WO2011AU00920
申请日期
2011.07.20
申请人
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION;HEDLEY, MARK;GUO, YINGJIE JAY;HUANG, XIAOJING