Beamforming: Omnidirectional, Signal processing, Sound waves, Interference (wave propagation), Antenna (radio), Sonar Projector, Hydrophone

Antenna Engineering and Radio Wave Propagation with Matlab(r)

Ham Radio Signal Behavior: Understanding Propagation, Radiation Angle, and Antenna Performance

Mode locking: Optics, Laser, Light, Phase (waves), Normal mode, Resonant cavity, Interference (wave propagation)

Flanging: Flanging, Sound effect, Comb filter, Phaser (effect), All-pass Phase response, Interference (wave propagation)