Multiple studies have been carried out to analyze the mutual interaction of a phase-sensitive optical time-domain reflectometer (Φ-OTDR) and parallel digital data traffic. However, interactions with analog transmission, e.g., community antenna television (CATV), have not been addressed. Our study examines and presents the influence of a developed sensing system Φ-OTDR when operated simultaneously on parallel fibers with the transfer of data from an analog CATV system. Three scenarios are suggested and discussed for the measurements and optimization of the data network in the analog CATV data transfer. These scenarios are suggested to enable the verification of the mutual interactions between data networks with the analog data transfer and suggested sensing system and to determine how the data network with the analog data transfer may or may not be influenced by the sensing system. The optimization and measurements prove that the analog CATV data transfer was negatively influenced by the sensing system Φ-OTDR, and the channel bit error rate increased by nearly half. The implementation of the sensing system Φ-OTDR was realized for a data network, followed by the testing and optimization, which proved that the safe spectral distance between the CATV and the sensing system is 150 GHz and higher.

中文翻译：

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相敏光时域反射仪对社区天线电视传输的影响

已经进行了多项研究来分析相敏光学时域反射仪（Φ-OTDR）与并行数字数据流量的相互影响。但是，尚未解决与模拟传输的交互，例如，社区天线电视（CATV）。我们的研究检查并提出了发达的传感系统Φ-OTDR在并行光纤上同时运行以及从模拟CATV系统传输数据时的影响。针对模拟CATV数据传输中数据网络的测量和优化，提出并讨论了三种方案。建议采用这些方案，以验证具有模拟数据传输的数据网络与建议的传感系统之间的交互作用，并确定具有模拟数据传输的数据网络如何受到传感系统的影响或可能不受其影响。优化和测量证明，模拟CATV数据传输受到传感系统Φ-OTDR的负面影响，并且信道误码率增加了近一半。在数据网络中实现了传感系统Φ-OTDR的实现，然后进行了测试和优化，证明了CATV与传感系统之间的安全频谱距离为150 GHz或更高。优化和测量证明，模拟CATV数据传输受到传感系统Φ-OTDR的负面影响，并且信道误码率增加了近一半。在数据网络中实现了传感系统Φ-OTDR的实现，然后进行了测试和优化，证明了CATV与传感系统之间的安全频谱距离为150 GHz或更高。优化和测量证明，模拟CATV数据传输受到传感系统Φ-OTDR的负面影响，并且信道误码率增加了近一半。在数据网络中实现了传感系统Φ-OTDR的实现，然后进行了测试和优化，证明了CATV与传感系统之间的安全频谱距离为150 GHz或更高。