发明名称 |
HIGH-RESOLUTION LINK-PATH DELAY ESTIMATOR AND METHOD FOR ESTIMATING A SIGNAL-PATH DELAY |
摘要 |
Embodiments of a high-resolution link-path delay estimator and method are generally described herein. The high-resolution link-path delay estimator may estimate a signal-path delay of a signal path between a master and remote device. The high-resolution link-path delay estimator may phase-shift a transmit signal of alternating symbols by phase-shift values and may sample a loopback signal. A noise-reduced version of the sampled signal output may be correlated with a step function to generate a correlation value for each of the phase-shift values. One of the phase-shift values may be selected to generate a fine-delay estimate which may be added to a coarse delay estimate to determine the signal-path delay. The coarse delay estimate may be an estimate of the signal-path delay to a nearest symbol period of the transmit signal and the fine-delay estimate may be an estimate to within a fraction of the symbol period. |
申请公布号 |
EP2965470(A1) |
申请公布日期 |
2016.01.13 |
申请号 |
EP20140714477 |
申请日期 |
2014.03.06 |
申请人 |
RAYTHEON COMPANY |
发明人 |
GUNN, BRIAN, A.;JENSEN, BRUCE, A.;NAM, JAYOUNG |
分类号 |
H04L12/26;G01S13/00;H04B3/46;H04B10/07;H04J3/06 |
主分类号 |
H04L12/26 |
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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