发明名称 |
MEASUREMENT OF TIME OF ARRIVAL |
摘要 |
<p>Disclosed is a method of measuring time of arrival of a signal transmitted from a transmitter (120) to reciever (110-n). The method comprises: modulating a plurality of narrowband signal portions onto different carrier frequencies; transmitting by the transmitter, each modulated signal portion to the receiver; receiving, by the receiver, the transmitted signal portions; estimating the channel impulse response by combining (610) the received signal portions; and measuring (620) the time of arrival using the estimated channel impulse response. Further disclosed is a method of measuring a time of arrival of a signal transmitted from a transmitter to a receiver. The method comprises: estimating a noise level (1310) in an impulse response of a channel between the transmitter and the receiver; finding a first peak (1330) in the channel impulse response that is not noise or a side lobe of a subsequent peak, using the estimated noise level; and measuring the time of arrival (1220) using the first peak.</p> |
申请公布号 |
EP2294439(A1) |
申请公布日期 |
2011.03.16 |
申请号 |
EP20090753323 |
申请日期 |
2009.05.25 |
申请人 |
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION |
发明人 |
HEDLEY, MARK;HUMPHREY, DAVID |
分类号 |
G01S1/24;G01S3/02;H04W40/00;H04W64/00 |
主分类号 |
G01S1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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