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Recent content by Ahmad Mheadat

  1. A

    how to find the frequency of a plotted signal in matlab

    If you had a signal that has been filtered and known to be a sinusoid, this signal has this value <30001x1 double> how could you find its frequency ?
  2. A

    need help in filter design

    thank you for answering me I choose 4khz as passband edge and 7.5khz as stopband edge and 1dB as passband ripple and 32dB as stop band Attenuation ,I choose these values to get low order could you tell me if there more reasons to choose these values and i get order 4 butterworth,3 for...
  3. A

    need help in filter design

    A single sinusoid is added to noise which has a bandwidth of 5 kHz centered about 7.5 kHz. The sampling rate of the system is 20 kHz. the signal is here https://www.4shared.com/file/XsBo5Ct6/ahmad.html? 1- Design Butterworth, Chebyshev, and elliptic filters to separate the signal from the noise...
  4. A

    need a paper

    Numerical performance evaluation for Alamouti space time coded OFDM under receiver impairments from here...
  5. A

    filter design

    A single sinusoid is added to noise which has a bandwidth of 5 kHz centered about 7.5 kHz. The sampling rate of the system is 20 kHz. the signal is here https://www.4shared.com/file/XsBo5Ct6/ahmad.html? 1- Design Butterworth, Chebyshev, and elliptic filters to separate the signal from the...
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