Adaptive Jammer Detection Threshold Adjustment
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Solution Overview
Problem
Existing jammer detection systems face challenges in balancing jammer protection and signal efficiency, as fixed-threshold approaches can lead to either premature activation of countermeasures or delayed response, resulting in reduced connection quality.
Innovation Solution
An adaptive jammer detection system that adjusts the jammer detection threshold based on signal performance indications and operational conditions, utilizing a combination of hardware and software components, including a communication processor and a jammer detector, to dynamically respond to changing jamming environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed high threshold is used for jammer detection, then false activations of countermeasures are reduced, but signal degradation occurs before jammer detection activates
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed threshold to a dynamic threshold that adapts based on signal conditions. The jammer detection threshold is continuously adjusted according to the received signal strength and quality metrics, allowing the system to respond appropriately to varying jamming environments while avoiding both premature activation and delayed response.
Solution Approach 2:
The patent implements feedback by monitoring signal performance indicators (such as signal-to-noise ratio, bit error rate) and using this information to adjust the jammer detection threshold. This closed-loop approach ensures the threshold reflects current operational conditions, resolving the contradiction between early detection and avoiding false alarms.
2Speed
If a fixed low threshold is used for jammer detection, then jamming countermeasures are engaged early, but connection quality is reduced due to premature activation
Solution Approach 1:
The system dynamically adjusts the detection threshold based on real-time signal conditions rather than using a fixed low threshold. This allows the system to maintain fast response to actual jammers while avoiding premature activation during normal signal variations, thus preserving connection quality.
Solution Approach 2:
The patent changes the threshold parameter adaptively based on signal strength, noise floor, and other operational parameters. By modifying the threshold value according to current system state, the system achieves both rapid jammer detection and high connection quality, eliminating the need to choose between speed and reliability.
3Adaptability or versatility
If jammer detection threshold is frequently adjusted, then adaptability to changing environments is improved, but system complexity increases
Solution Approach 1:
The system performs self-adjustment of the jammer detection threshold based on automatically monitored signal conditions. Rather than requiring external intervention or complex manual configuration, the system uses built-in signal processing to autonomously optimize the threshold, reducing operational complexity while maintaining high adaptability.
Solution Approach 2:
The feedback mechanism automatically monitors signal quality and adjusts the threshold accordingly, eliminating the need for complex external control systems. This self-regulating approach achieves environmental adaptability through a relatively simple closed-loop control structure that processes signal metrics and updates the threshold as needed.
Data Source
AI summary
An apparatus is disclosed for adaptive jammer detection. In example aspects, the apparatus includes at least one communication processor and wireless circuitry. The at least one communication processor is configured to determine a performance indication corresponding to a received signal. The at least one communication processor is also configured to adjust a jammer detection threshold based on the performance indication to produce an adjusted jammer detection threshold. The wireless circuitry is coupled to the at least one communication processor and includes a jammer detector. The jammer detector is configured to detect a first jamming signal based on the jammer detection threshold and to detect a second jamming signal based on the adjusted jammer detection threshold.