发明名称 |
METHOD OF ESTIMATING POSITION OF MOBILE NODE IN WIRELESS SENSOR NETWORK |
摘要 |
<p>There is provided a method for estimating a position of a mobile node in a wireless sensor network. The method includes estimating a frequency offset between anchor nodes and estimating a difference between times when ranging frames from a mobile node are received by two anchor node, without use of a separate synchronization unit, such as a network synchronized clock supply unit that supplies a network synchronized clock via a cable, in a wireless sensor network, unlike a conventional method of estimating Time of Flight (TOF) using Two-Way Ranging (TWR) and Symmetric Double Sided-TWR (SDS-TWR) schemes. The estimated receiving time difference is directly applied to a Time Difference Of Arrival (TDOA) algorithm in order to estimate the position of the mobile node.</p> |
申请公布号 |
WO2009078536(A1) |
申请公布日期 |
2009.06.25 |
申请号 |
WO2008KR04440 |
申请日期 |
2008.07.30 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE;NAM, YOON SEOK;HUH, JAE DOO;PARK, KWANG ROH |
发明人 |
NAM, YOON SEOK;HUH, JAE DOO;PARK, KWANG ROH |
分类号 |
H04B7/26 |
主分类号 |
H04B7/26 |
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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