发明名称 |
DETECTING MULTIPATH AND DETERMINING POSITIONING MEASUREMENT UNCERTAINTY |
摘要 |
Techniques are disclosed for determining measurement uncertainty of and/or multipath effects on positioning measurements, based on the residual deviations between timing measurements and high-accuracy location results. An example method begins with collecting (510) a plurality of timing measurements or ranging measurements, or both, each measurement corresponding to at least one anchor node antenna having a known location. A measurement deviation is determined (520) for each measurement by comparing the measurement to a corresponding reference location. The measurement deviations are used (530) to estimate measurement quality for one or more subsequent positioning measurements, and/or uncertainty associated with one or more subsequent positioning estimates, and/or an effect of multipath on subsequent positioning measurements or estimates. In some embodiments, a covariance matrix is calculated from the measurement deviations and is used to determine statistical information or multipath effects for measurements corresponding to a particular one of the anchor node antennas. |
申请公布号 |
WO2014047824(A1) |
申请公布日期 |
2014.04.03 |
申请号 |
WO2012CN82132 |
申请日期 |
2012.09.27 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);SIOMINA, IANA;ZHANG, YANG |
发明人 |
SIOMINA, IANA;ZHANG, YANG |
分类号 |
H04W24/00 |
主分类号 |
H04W24/00 |
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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