Reactive Radio Interferer Self-Testing via Cross-Path Signal Analysis
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Solution Overview
Problem
Existing self-testing methods for reactive radio interferers are inadequate as they fail to effectively monitor antenna cabling and antennas, often requiring additional electronic assemblies or external measurement equipment, limiting their ability to operate continuously without disrupting normal function.
Innovation Solution
A method for self-testing reactive radio interferers that utilizes existing functional assemblies within the system, transmitting a test signal during observation phases and analyzing it across other transmission/reception paths, allowing for continuous testing without external tools or additional electronics, and can be performed during normal operation or at system start, ensuring comprehensive coverage of all components including antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional electronic assemblies or external measurement equipment are used for self-testing, then testing capability is improved, but device complexity increases
Solution Approach 1:
The transmitter and receiver assemblies perform dual functions: normal communication operations and self-testing operations. The transmitter transmits both communication signals and test signals, while the receiver receives both types of signals. This eliminates the need for dedicated test equipment, resolving the contradiction between testing capability and device complexity
Solution Approach 2:
The radio interferer performs self-testing using its own functional assemblies without requiring external measurement equipment or additional internal test electronics. The system tests itself by utilizing its existing transmitter and receiver to send and analyze test signals through the same antenna cabling and antennas used for normal operations
2Duration of action of moving object
If self-testing is carried out during normal operation, then continuous monitoring is improved, but test coverage of critical components deteriorates
Solution Approach 1:
The system performs self-testing at system start before normal operation begins, ensuring that critical components including antenna cabling and antennas are tested under controlled conditions. This preliminary action guarantees comprehensive test coverage of all components before the system enters normal operation mode
Solution Approach 2:
The self-testing is performed periodically, including at system start and potentially during scheduled maintenance intervals. This periodic testing ensures that critical components are thoroughly tested without requiring continuous disruption of normal operations, balancing continuous monitoring with adequate test coverage
3Device complexity
If loop-back method is used for self-testing, then device complexity is reduced, but measurement precision of antenna cabling and antennas deteriorates
Solution Approach 1:
The antenna cabling and antennas serve as intermediaries that carry test signals from the transmitter to the receiver. By using the actual antenna system as the test path rather than an internal loop-back connection, the method achieves precise measurement of antenna cabling and antenna performance while maintaining relatively simple device architecture
Solution Approach 2:
The same antenna cabling and antennas used for normal communication operations are utilized for self-testing purposes. This multi-functional use of components enables precise measurement of antenna system performance without requiring separate test equipment or additional complexity
Data Source
AI summary
A reactive radio interferer includes a plurality of time synchronized transmitting/receiving lines, each of which is designed to alternately carry out-monitoring phases in order to receive the radio spectrum and interference phases in order to transmit an interference signal on the basis of the radio spectrum received in the monitoring phase. Testing of the reactive radio interferer is performed by having one of the transmitting/receiving lines transmit a test signal within a monitoring phase, the test signal being received and evaluated by at least one other transmitting/receiving line.