发明名称 |
Demodulation of phase modulated fibre-optic sensor system signals |
摘要 |
<p>Demodulation apparatus for demodulating phase-modulated signals comprises a quadrature signal generator (QSG) for generating in-phase (I) and quadrature-phase (Q) signals in response to an unmodulated input signal. The QSG provides fast frequency tracking of the input signal and excludes any high-frequency content the input signal.</p> |
申请公布号 |
EP1917500(A1) |
申请公布日期 |
2008.05.07 |
申请号 |
EP20060765299 |
申请日期 |
2006.08.17 |
申请人 |
QINETIQ LIMITED |
发明人 |
NASH, PHILIP, JOHN;TYLER, DAVID, JOHN;MIDDLETON, NICHOLAS |
分类号 |
G01D5/353;H04L27/20 |
主分类号 |
G01D5/353 |
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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