| Presentation | 2008-02-26 Experiments of ultrasonic distance measurement using cross-correlation by single-bit signal processing Shinnosuke HIRATA, Minoru K KUROSAWA, Takashi KATAGIRI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Ultrasonic distance measurement with the pulse-echo method is based upon the determination of the time of flight of ultrasonic waves. The pulse-compression technique, which involves the calculation of the cross-correlation function between the transmitted and the reflected waves, is the conventional method for improving the resolution of the measurement. The calculation of a cross-correlation operation requires high-cost digital signal processing, however. A new sensor signal processing method of the pulse-compression technique using a delta-sigma modulated single-bit digital signal has been proposed. The proposed method consists of a cross-correlation operation by single-bit signal processing, and a smoothing operation accomplished by a moving average filter. For the pulse-compression technique, this method reduces the calculation cost of digital signal processing. In this paper, cross-correlation by single-bit signal processing has been evaluated by experiment of ultrasonic distance measurement. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ultrasonic distance measurement / single-bit signal processing / delta-sigma modulation / pulse compression |
| Paper # | US2007-117 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 2008/2/19(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| 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) | Experiments of ultrasonic distance measurement using cross-correlation by single-bit signal processing |
| Sub Title (in English) | |
| Keyword(1) | ultrasonic distance measurement |
| Keyword(2) | single-bit signal processing |
| Keyword(3) | delta-sigma modulation |
| Keyword(4) | pulse compression |
| 1st Author's Name | Shinnosuke HIRATA |
| 1st Author's Affiliation | Tokyo Institute of Technology() |
| 2nd Author's Name | Minoru K KUROSAWA |
| 2nd Author's Affiliation | Tokyo Institute of Technology |
| 3rd Author's Name | Takashi KATAGIRI |
| 3rd Author's Affiliation | Sutekina Inc. |
| Date | 2008-02-26 |
| Paper # | US2007-117 |
| Volume (vol) | vol.107 |
| Number (no) | 494 |
| Page | pp.pp.- |
| #Pages | 6 |
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