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Volume 32 Issue 7
Aug.  2010
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Zhao Zhi-yong, Wang Hong-xing, Liu Xi-guo. Sinusoidal Modulation Based on Prolate Spheroidal Wave Functions[J]. Journal of Electronics & Information Technology, 2010, 32(7): 1543-1547. doi: 10.3724/SP.J.1146.2009.00864
Citation: Zhao Zhi-yong, Wang Hong-xing, Liu Xi-guo. Sinusoidal Modulation Based on Prolate Spheroidal Wave Functions[J]. Journal of Electronics & Information Technology, 2010, 32(7): 1543-1547. doi: 10.3724/SP.J.1146.2009.00864

Sinusoidal Modulation Based on Prolate Spheroidal Wave Functions

doi: 10.3724/SP.J.1146.2009.00864
  • Received Date: 2009-06-09
  • Rev Recd Date: 2010-02-09
  • Publish Date: 2010-07-19
  • For improving the bandwidth efficiency, a sinusoidal modulated method based on Prolate Spheroidal Wave Functions(PSWF) is proposed. The basedband modulated orthogonal waveforms is designed based on PSWF, which is time-limited and band-limited approximately. The orthogonal waveforms spectrum is mixed or overlapped in frequency domain. The information is modulated by multi-plexing baseband modulation. The spectrum shifting is achieved by sine carrier modulation. By simulation and analysis, the system bandwidth efficiency can be fast closed to 2 Baud/Hz and the approximating speed is greater than that of OFDM system, the power efficiency is better as well. The modulation method is easily realizable.
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