pde   Linux PC

PURPOSE ^

Finite phase difference and Kay frequency estimation

DESCRIPTION ^

 Finite phase difference and Kay frequency estimation

 Estimates the instantaneous frequency of the input signal using
 General Phase Difference (FFD, CFD, 4th, 6th) and Kay Frequency
 Estimation

 Usage:

     ife = pde( signal, order [, window_length]);

 Inputs

    signal

      Input one dimensional signal to be analysed.

    order

      Order of the finite phase difference estimator. Available
      estimator orders are: 1, 2, 4, 6.

    window_length

      Kay smoothing window length in the case of weighted phase
      difference estimator.  NB Set order = 1 for Kay's method.


     For General Phase    Difference:

     window_length:0;
     order:1, 2, 4 or 6;

     e.g. ife = pde( signal, order);

     for Kay smoothing weighted phase difference:

     window_length: desired window length;
     order=1;

     e.g. ife = pde( signal, 0, window_length );

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