FOCUS: Frequency Based Detection of Covert Ultrasonic Signals.
Wouter HellemansMd Masoom RabbaniJo VliegenNele MentensPublished in: SEC (2022)
Keyphrases
- weak signal
- signal detection
- spectrum analysis
- object detection
- signal processing
- detection algorithm
- frequency modulation
- false alarms
- detection method
- frequency analysis
- low signal to noise ratio
- digital images
- detection accuracy
- low frequency
- automatic detection
- anomaly detection
- frequency spectrum
- fundamental frequency
- instantaneous frequency
- frequency hopping
- data sets
- phase locked
- detection scheme
- detection rate