Radio frequency leakage detection in a cable plant

摘要

Embodiments described provide detection of RF leaks in a coaxial cable of a cable plant. One embodiment comprises a mobile device that includes an antenna, a quadrature demodulator, and a controller. The antenna receives an RF signal from an RF leak in the coaxial cable. The quadrature demodulator demodulates the RF signal to generate IQ data. The controller determines changes in a phase angle of the RF signal based on the IQ data generated as the mobile device is in motion, and identifies that the mobile device is travelling toward the RF leak responsive to determining that the phase angle is advancing. The controller identifies that the mobile device is travelling away from the RF leak responsive to determining that the phase angle is retarding.

主权项

1. A mobile device configured to detect Radio Frequency (RF) leaks emanating from a coaxial cable of a cable plant, the mobile device comprising:
an antenna configured to receive an RF signal from an RF leak in the coaxial cable; a quadrature demodulator configured to demodulate the RF signal to generate In-phase and Quadrature (IQ) data; and a controller configured to determine changes in a phase angle of the RF signal based on the IQ data generated as the mobile device is in motion, and to:
identify that the mobile device is traveling towards the RF leak responsive to determining that the phase angle is advancing; andidentify that the mobile device is traveling away from the RF leak responsive to determining that the phase angle is retarding.