| 摘要 |
A modification to designs of existing hard-wired electrical and electronic systems that extends the operating reach of these systems or improves signal quality, or both. Conventional hard-wired systems have communicated narrow broadband electrical signals only over electrically conductive media such as copper coaxial cable. A modification to the design using an embodiment of the present invention adds electrical-to-optical and optical-to-electrical transceivers, optical fiber, signal conditions and circulators to existing hard-wired systems to permit transmittal of narrow broadband pulses and FM-CW steps signals over a much longer landline than available for conventional systems. Embodiments of the present invention include sensor systems using RF pulses or FM-CW step signals and time domain reflectometry.
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