Investigation of the steerable parametric loudspeaker based on phased array techniques
Due to its ability to generate highly directional sound beams, the parametric loudspeakers are advantageous in creating personal listening zones in public areas. The directivity control of the parametric loudspeaker can provide more flexibility in its applications. This thesis provides an investiga...
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| Format: | Thesis |
| Language: | English |
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2013
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| Online Access: | https://hdl.handle.net/10356/51775 |
| _version_ | 1811691929554911232 |
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| author | Shi, Chuang |
| author2 | Gan Woon Seng |
| author_facet | Gan Woon Seng Shi, Chuang |
| author_sort | Shi, Chuang |
| collection | NTU |
| description | Due to its ability to generate highly directional sound beams, the parametric loudspeakers are advantageous in creating personal listening zones in public areas. The directivity control of the parametric loudspeaker can provide more flexibility in its applications. This thesis provides an investigation of several practical issues of applying phased array techniques to achieve directivity control in the steerable parametric loudspeaker, and addresses two major problems: (i) spatial aliasing and (ii) mismatches between beampatterns obtained in simulation and measurement. Simulations and measurements are carried out to validate the models and methods proposed in major chapters, based on the simulation framework and measurement setup proposed in the beginning of this thesis. The feasibility of developing the steerable parametric loudspeaker based on phased array techniques is proven in practice. Moreover, a few guidelines are also provided, which can then be applied in many applications of the steerable parametric loudspeaker. |
| first_indexed | 2024-10-01T06:27:42Z |
| format | Thesis |
| id | ntu-10356/51775 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:27:42Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/517752023-07-04T16:21:48Z Investigation of the steerable parametric loudspeaker based on phased array techniques Shi, Chuang Gan Woon Seng School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing Due to its ability to generate highly directional sound beams, the parametric loudspeakers are advantageous in creating personal listening zones in public areas. The directivity control of the parametric loudspeaker can provide more flexibility in its applications. This thesis provides an investigation of several practical issues of applying phased array techniques to achieve directivity control in the steerable parametric loudspeaker, and addresses two major problems: (i) spatial aliasing and (ii) mismatches between beampatterns obtained in simulation and measurement. Simulations and measurements are carried out to validate the models and methods proposed in major chapters, based on the simulation framework and measurement setup proposed in the beginning of this thesis. The feasibility of developing the steerable parametric loudspeaker based on phased array techniques is proven in practice. Moreover, a few guidelines are also provided, which can then be applied in many applications of the steerable parametric loudspeaker. DOCTOR OF PHILOSOPHY (EEE) 2013-04-11T03:58:26Z 2013-04-11T03:58:26Z 2013 2013 Thesis Shi, C. (2013). Investigation of the steerable parametric loudspeaker based on phased array techniques. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/51775 10.32657/10356/51775 en 240 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing Shi, Chuang Investigation of the steerable parametric loudspeaker based on phased array techniques |
| title | Investigation of the steerable parametric loudspeaker based on phased array techniques |
| title_full | Investigation of the steerable parametric loudspeaker based on phased array techniques |
| title_fullStr | Investigation of the steerable parametric loudspeaker based on phased array techniques |
| title_full_unstemmed | Investigation of the steerable parametric loudspeaker based on phased array techniques |
| title_short | Investigation of the steerable parametric loudspeaker based on phased array techniques |
| title_sort | investigation of the steerable parametric loudspeaker based on phased array techniques |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing |
| url | https://hdl.handle.net/10356/51775 |
| work_keys_str_mv | AT shichuang investigationofthesteerableparametricloudspeakerbasedonphasedarraytechniques |