Showing 5,841 - 5,860 results of 12,943 for search '"7 d'Or"', query time: 0.23s Refine Results
  1. 5841
  2. 5842
  3. 5843

    De-noising algorithms for the raised cosine pulse signal using the minimum-energy frame in the discrete signal space by Ying-hai XIE, Wei YANG, Ting-ting FAN

    Published 2012-03-01
    “…The de-noising algorithms were proposed for the raised cosine pulse signal using minimum-energy(wavelet) frame in the discrete signal space.For the given two minimum-energy frames,the decomposition coefficients of sampled sequence appeared significant statistical characteristics difference between the raised cosine pulse signal and additive Gaussian noise under the frames’sub-sequences.Based on this,two threshold de-noising algorithms were provided to makes full use of the merit that the frame was fit for the de-noising work,they removed partial noise component while keeping the component of original signal and got effic nt de-noising result.The simulation results show that,when the modulating method is BPSK and its raised cosine pulse signal is polluted by the additive Gaussian noise,then if add a pre-processing link to denoise the receiving waveform using the algorithms,the receiver can greatly increase the signal-to-noise ratio of receiving signal and have about 3.1dB and 2.7dB performance gain of bit error ratio,respectively.…”
    Get full text
    Article
  4. 5844
  5. 5845
  6. 5846
  7. 5847
  8. 5848
  9. 5849
  10. 5850
  11. 5851
  12. 5852
  13. 5853
  14. 5854
  15. 5855
  16. 5856
  17. 5857
  18. 5858
  19. 5859
  20. 5860