Design of directional loudspeaker : study of modulation techniques

• Main Author: Chang, Jia Yih.
• Other Authors: Chong Yong Kim
• Format: Final Year Project
• Language: English
• Published: 2012
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio
• Online Access: http://hdl.handle.net/10356/49301
• Institution: Nanyang Technological University

Nonlinear interaction of ultrasound waves can be applied with parametric loudspeaker to generate audible sound. The audible sound reproduced using parametric loudspeaker has a special characteristic of high directivity. This phenomenon, known as the parametric array, is due to the self-demodulation...