| Presentation | 2010-06-24 US2010-18 Acoustic imaging using a simultaneous transmission of M-sequence signals with inter-code interference cancellation Kazunori OGASAWARA, Jyun-ya TAKAYAMA, Hiroyuki HACHIYA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Acoustic sensing in the air has the potential to acquire information about an object such as its position, shape, material and movement effectively. Nevertheless, it is difficult to identify acoustic signals from small objects clearly because of environmental noises, sound attenuation and scattering of object surface. We have presented the performance of object detection using the M-sequence signal in an indoor environment. By using M-sequence signal, it was able to improve SN ratio and to measure the reflected waves from small object that can not be detected by using a conventional impulse. In this paper, we present a technique to get an equivalent effect of multiple transmission using simultaneous transmission of M-sequence signals with inter-code interference cancellation. A inter-code interference was removed usign direct path extraction and statistiscal scheme. A simultaneous transmission of M-sequence signals with inter-code interference cancellation enables acoustic imaging with high resolution only by one transmission. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Acoustic sensing / M-sequence signal / Preferred pair / Acoustic imaging / PN code / inter-code interference |
| Paper # | US2010-18 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 2010/6/17(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | US2010-18 Acoustic imaging using a simultaneous transmission of M-sequence signals with inter-code interference cancellation |
| Sub Title (in English) | |
| Keyword(1) | Acoustic sensing |
| Keyword(2) | M-sequence signal |
| Keyword(3) | Preferred pair |
| Keyword(4) | Acoustic imaging |
| Keyword(5) | PN code |
| Keyword(6) | inter-code interference |
| 1st Author's Name | Kazunori OGASAWARA |
| 1st Author's Affiliation | Faculty of Engineering, Tokyo Institute of Technology() |
| 2nd Author's Name | Jyun-ya TAKAYAMA |
| 2nd Author's Affiliation | Graduate School of Science and Engineering, Tokyo Institute of Technology |
| 3rd Author's Name | Hiroyuki HACHIYA |
| 3rd Author's Affiliation | Graduate School of Science and Engineering, Tokyo Institute of Technology |
| Date | 2010-06-24 |
| Paper # | US2010-18 |
| Volume (vol) | vol.110 |
| Number (no) | 91 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |