发明名称 |
Methods for noise validated phase ranging RFID location |
摘要 |
A method and apparatus for validating a distance output of a phase ranging RFID location system, based upon the phase readings included in data sets obtained from monitoring reply signals corresponding to interrogation signals at multiple frequencies and a common interrogation signal beam direction; by comparison of measured phase and frequency data sets with theoretical phases calculated with respect to the same frequencies over a range of positions corresponding to a beam extent of the interrogation signal. The distance output validated by comparison with theoretical threshold data processed to generate an extreme values distribution from which a cumulative distribution function is extracted and against which a confidence level is applied. |
申请公布号 |
US8159367(B2) |
申请公布日期 |
2012.04.17 |
申请号 |
US20090625219 |
申请日期 |
2009.11.24 |
申请人 |
HOFER RUSSELL;BLOY GRAHAM P. A.;RF CONTROLS, LLC |
发明人 |
HOFER RUSSELL;BLOY GRAHAM P. A. |
分类号 |
G08C19/16 |
主分类号 |
G08C19/16 |
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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