Phase Shift Keying Acoustic Communication in Air with Impulse Response
スポンサーリンク
概要
- 論文の詳細を見る
We propose a new phase shift keying (PSK) modulation method for acoustic communication in air. The main problem for communicating in air is the existence of an impulse response that significantly distorts waveforms. Unlike conventional PSK modulation that disturbs phase information, particularly in the bit-inversion point owing to the convolution between signals and the impulse response of the communication system, the new PSK modulation method reduced the effect of the impulse response effectively by inserting a guard time (GT) or a buffer signal (BS) between symbols. From our experiments, the proposed PSK modulation method achieves approximately 10 times higher bit-error rate (BER) than conventional modulation when the signal-to-noise ratio (SNR) is $-5$ dB. The obtained results suggest that the new PSK modulation method can effectively improve BER at the same SNR.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2009-07-25
著者
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Mizutani Koichi
Graduate School Of Systems And Information Engineering Univ. Of Tsukuba
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Mizutani Keiichi
Graduate School Of Science And Engineering Tokyo Institute Of Technology
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Ebihara Tadashi
Graduate School Of Systems And Information Engineering University Of Tsukuba
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Wakatsuki Naoto
Graduate School Of Systems And Information Engineering University Of Tsukuba
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Ohbuchi Takeshi
Graduate School Of Systems And Information Engineering University Of Tsukuba
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Wakatsuki Naoto
Graduate School of Systems and Information Engineering, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Mizutani Keiichi
Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8522, Japan
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Ohbuchi Takeshi
Graduate School of Systems and Information Engineering, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Morikawa Koichi
College of Engineering Systems, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Mizutani Koichi
Graduate School of System and Information Engineering, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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