| Presentation | 1996/6/21 A SAW Modulator and A SAW Matched Filter for DPSK Modulated Chirp Signals Yoshihiko Takeuchi, Kazuhiko Yamanouchi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have developed a modulator and a demodulator for DPSK modulated chirp signals using a SAW dispersive delay line and a SAW matched filter. The SAW chirp modulator spreads the 100MHz spectrum between every 1 bit data interval of 1.5μsec and provides DPSK modulation, depending upon data. By using nonlinear chirp modulation, the chirp signal series has a fixed amplitude in the time domain which is an advantage for nonlinear amplification and has a weighted amplitude in the frequency domain for good correlation characteristics. The SAW demodulator demodulates data using exclusive output pulses from two output ports of a newly designed SAW matched filter. By employing nonlinear chirp modulation, this demodulator has a 19dB process gain and less than a 0.4dB receiving power loss in spite of a 56MHz receiving band width. In addition, it has good correlation characteristics of less than -30dB time sidelobe. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Spread spectrum communication / Chirp signal / Surface acoustic wave device / Matched filter |
| Paper # | SST96-25,SAT96-39,RCS96-49 |
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| Conference Information | |
| Committee | SST |
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| Conference Date | 1996/6/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Assistant | |
| Paper Information | |
| Registration To | Spread Spectrum Technology (SST) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A SAW Modulator and A SAW Matched Filter for DPSK Modulated Chirp Signals |
| Sub Title (in English) | |
| Keyword(1) | Spread spectrum communication |
| Keyword(2) | Chirp signal |
| Keyword(3) | Surface acoustic wave device |
| Keyword(4) | Matched filter |
| 1st Author's Name | Yoshihiko Takeuchi |
| 1st Author's Affiliation | Research Institute of Electrical Communication, Tohoku University() |
| 2nd Author's Name | Kazuhiko Yamanouchi |
| 2nd Author's Affiliation | Research Institute of Electrical Communication, Tohoku University |
| Date | 1996/6/21 |
| Paper # | SST96-25,SAT96-39,RCS96-49 |
| Volume (vol) | vol.96 |
| Number (no) | 100 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |