Doppler effect
Acoustics
Sonar
Matched filter
Envelope detector
Synthetic aperture sonar
SIGNAL (programming language)
Detector
Echo (communications protocol)
Envelope (radar)
Filter (signal processing)
Phase (matter)
Phase detector
Physics
Optics
Computer science
Bandwidth (computing)
Telecommunications
Radar
Computer vision
Programming language
Amplifier
Computer network
Quantum mechanics
Astronomy
Voltage
