Detection and signal processing in the acoustic echolocation system for the blind
The paper presents a method of design, the general features and parameters of the acoustic, multibeam echolocation system for the blind which uses an electret microphone array and a digital beamformer with second order sampling. The system in question detects various obstacles that a blind person en...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Institute of Fundamental Technological Research Polish Academy of Sciences
2014-01-01
|
| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/955 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849720788072005632 |
|---|---|
| author | R. SALAMON R. KOWALIK I. POSTAWKA |
| author_facet | R. SALAMON R. KOWALIK I. POSTAWKA |
| author_sort | R. SALAMON |
| collection | DOAJ |
| description | The paper presents a method of design, the general features and parameters of the acoustic, multibeam echolocation system for the blind which uses an electret microphone array and a digital beamformer with second order sampling. The system in question detects various obstacles that a blind person encounters on his or her way. It also determines the location of obstacles and the presumable shape and gives verbal messages about the situation observed. The paper includes a detailed description of signal processing in the beamformer and the conditions of detecting the observed obstacles. Theoretical and measured beam patterns of the system have been presented as well as the results of detecting and locating obstacles. |
| format | Article |
| id | doaj-art-bbae9a811aab4f62abafc426ddce967b |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-bbae9a811aab4f62abafc426ddce967b2025-08-20T03:11:52ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2014-01-01223Detection and signal processing in the acoustic echolocation system for the blindR. SALAMON0R. KOWALIK1I. POSTAWKA2Department of Acoustics, Department of Optoelectronics, Gdańsk University of TechnologyDepartment of Acoustics, Department of Optoelectronics, Gdańsk University of TechnologyDepartment of Acoustics, Department of Optoelectronics, Gdańsk University of TechnologyThe paper presents a method of design, the general features and parameters of the acoustic, multibeam echolocation system for the blind which uses an electret microphone array and a digital beamformer with second order sampling. The system in question detects various obstacles that a blind person encounters on his or her way. It also determines the location of obstacles and the presumable shape and gives verbal messages about the situation observed. The paper includes a detailed description of signal processing in the beamformer and the conditions of detecting the observed obstacles. Theoretical and measured beam patterns of the system have been presented as well as the results of detecting and locating obstacles.https://acoustics.ippt.pan.pl/index.php/aa/article/view/955 |
| spellingShingle | R. SALAMON R. KOWALIK I. POSTAWKA Detection and signal processing in the acoustic echolocation system for the blind Archives of Acoustics |
| title | Detection and signal processing in the acoustic echolocation system for the blind |
| title_full | Detection and signal processing in the acoustic echolocation system for the blind |
| title_fullStr | Detection and signal processing in the acoustic echolocation system for the blind |
| title_full_unstemmed | Detection and signal processing in the acoustic echolocation system for the blind |
| title_short | Detection and signal processing in the acoustic echolocation system for the blind |
| title_sort | detection and signal processing in the acoustic echolocation system for the blind |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/955 |
| work_keys_str_mv | AT rsalamon detectionandsignalprocessingintheacousticecholocationsystemfortheblind AT rkowalik detectionandsignalprocessingintheacousticecholocationsystemfortheblind AT ipostawka detectionandsignalprocessingintheacousticecholocationsystemfortheblind |