发明名称 |
DISTRIBUTED BACKSCATTERING |
摘要 |
The present invention relates to a method for detecting or inferring a physical disturbances on a communications link, in particular by using distributed backscattering. The method includes the steps of: transmitting test signals onto a link; receiving test signals returned from a remote portion of the link; performing a function on the returned test signals; and in dependence on at least one characteristic of the combination signal, inferring the presence of a disturbance. The test signal are returned by a process Rayleigh backscattering along the fibre, so existing fibre installations can be used without requiring a mirror to be specifically introduced. |
申请公布号 |
EP1794905(A1) |
申请公布日期 |
2007.06.13 |
申请号 |
EP20050786022 |
申请日期 |
2005.09.26 |
申请人 |
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY |
发明人 |
SIKORA, EDMUND SERGIO ROBERT;HEALEY, PETER |
分类号 |
G01M11/00;H04B10/071 |
主分类号 |
G01M11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|