Low loss SAW matched filters with low sidelobe sequences and spread spectrum applications

@article{Shiba1996LowLS,
  title={Low loss SAW matched filters with low sidelobe sequences and spread spectrum applications},
  author={Takashi Shiba and Akitsuna Yuhara and Minoru Moteki and Yasuhiro Ota and Kyoichiro Oda and Kazuo Tsubouchi},
  journal={Proceedings of ISSSTA'95 International Symposium on Spread Spectrum Techniques and Applications},
  year={1996},
  volume={2},
  pages={740-745 vol.2}
}
A 300 MHz SAW matched filter with reduced mismatch-loss and with a coded transducer by a low autocorrelation sidelobe sequence has been developed for a 1 Mbps SS low power-transmission wireless communication modem. This low autocorrelation sequence of 25 chips was searched to apply a DS spreading DPSK signal. The sequence reduced the output signal sidelobe 6 dB lower than a 31 chip m-sequence, and further obtained a higher processing gain than that of Barker sequences. Furthermore, to reduce… CONTINUE READING

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Code optimization for direct sequence spread spectrum and SAW-matched filter implementation

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SAW device implementation of a weighted stepped chirp code signal for direct sequence spread spectrum communications systems

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