Method, device and system for detecting bridge tap
A technology of bridging taps and detecting bridges, which is applied in the direction of line transmission monitoring/testing, monitoring/monitoring/testing arrangements, line transmission components, etc., which can solve the problems of large amount of line topology calculations, achieve high accuracy, and increase calculation speed , the effect of reducing the amount of calculation
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[0035] In order to solve the problem of huge amount of calculation in the existing technology for calculating the line topology, the embodiment of the present invention provides a method for detecting bridge taps.
[0036] Such as figure 2 As shown, the method for detecting bridge taps includes:
[0037] 201. Obtain the channel transfer function H(f) of the line between the sending end and the receiving end, the steps include:
[0038] Such as image 3 As shown in 2011, send a test signal with a known power spectral density and frequency range at the transmitting end;
[0039] 2012. The receiving end receives the test signal;
[0040] 2013. Measure the received test signal and compare it with the test signal sent by the transmitter to obtain the channel transfer function H(f). In practical applications, the channel transfer function H(f) can be obtained by the following methods:
[0041] 1) For ADSL2 (Asymmetrical Digital Subscriber Line 2, the second generation of asymmetric digital s...
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