发明名称 |
Frequency estimation method of MB-OFDM UWB system using time frequency hopping strategy |
摘要 |
A frequency estimation method of multiband (MB)-orthogonal frequency division multiplexing (OFDM) ultra wide band (UWB) system using an Alt-PHY time frequency (TF) hopping strategy based on IEEE 802. 15. 3a. includes the steps of: a) selecting a predetermined number of frequencies among a plurality of center frequencies based on a predetermined number of OFDM symbols and estimating relative frequency offsets for selected frequencies; b) obtaining an average relative frequency offset by averaging the estimated relative frequency offsets when two or more frequencies are selected at the step a); and c) obtaining real frequency offsets for each of the center frequencies by transforming the obtained average relative frequency offset to the real frequency offsets and compensating a frequency offset caused by a transmitting/receiving local oscillators based on the obtained real frequency offsets.
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申请公布号 |
US7366262(B2) |
申请公布日期 |
2008.04.29 |
申请号 |
US20040023382 |
申请日期 |
2004.12.29 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
SHIN CHEOL HO;CHOI SANG SUNG;PARK KWANG ROH |
分类号 |
H04L27/06 |
主分类号 |
H04L27/06 |
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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