Research Article

The Information Theoretic Approach to Signal Anomaly Detection for Cognitive Radio

Figure 16

Oscilloscope trace of a WiBro signal with a single anomalous frame and the associated trigger events. The KLD threshold is . Trigger event A marks the start of the unusual segment of the anomalous frame. A second trigger event, B, is also obtained in the subsequent frame due to the disappearance of the anomalous feature.
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