Signal Processor for Suppressing Roundabout Signals in RoF Transceivers
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Solution Overview
Problem
Conventional roundabout signal removers in fiber optic radio systems require complex circuitry and significant computational resources to monitor and suppress roundabout signals, leading to increased costs and processing delays.
Innovation Solution
A signal processor with a branch unit, detection unit, determination unit, and power source controller that branches transmission signals, detects voltage levels, compares them to a threshold voltage, and controls the power source of the reception signal amplifier to suppress roundabout signals, eliminating the need for multiple delay circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional roundabout signal removers are used to suppress roundabout signals, then signal quality is improved, but circuit complexity and cost increase significantly
Solution Approach 1:
The invention extracts only the essential function needed for roundabout signal suppression - detecting the transmitted signal level and comparing it with a threshold. By removing unnecessary components such as multiple delay circuits and complex monitoring systems, the solution achieves suppression functionality with minimal circuitry, directly resolving the contradiction between signal quality and circuit complexity
Solution Approach 2:
The invention replaces expensive, complex roundabout signal remover circuits with a simple, low-cost alternative using basic components (detector, comparator, threshold voltage source). This simple circuit can be easily implemented and replaced if needed, achieving the same suppression function at a fraction of the cost and complexity
2Reliability
If conventional roundabout signal removers with multiple delay circuits are used, then roundabout signal suppression is achieved, but processing time increases
Solution Approach 1:
The detector continuously monitors the transmitted signal level without interruption, and the comparator continuously compares the detected level with the threshold voltage. This continuous operation eliminates the need for sequential processing through multiple delay circuits, achieving real-time suppression while minimizing processing time
Solution Approach 2:
The invention removes the delay circuits entirely from the suppression mechanism. By extracting only the essential comparison function and eliminating unnecessary time-delay components, the system achieves immediate response to roundabout signals without processing delays
Data Source
AI summary
Provided is a signal processor provided in a transceiver for transmitting and receiving a radio signal, and including a branch unit, a detection unit, a determination unit, and a power source controller. The branch unit branches a transmission signal and acquires a branch signal. The detection unit detects the branch signal and acquires a voltage value of the branch signal. The determination unit compares the voltage value of the branch signal with a threshold voltage previously stored in a storage unit and determines whether the voltage value of the branch signal is equal to or greater than the threshold voltage. The power source controller controls turning on and off of a power source for a reception signal amplifier of the transceiver according to a determination result determined by the determination unit.