Issue No. 02 - February (1982 vol. 4)
Chia-Ling Hu , MEMBER, IEEE, Department of Electrical Engineering, Rice University, Houston, TX 77001; Department of Electrical Engineering, Chung-Shan Institute of Science and Technology, Taoyua
Rui J. P. De Figueiredo , FELLOW, IEEE, Departments of Electrical Engineering and Mathematical Sciences, Rice University, Houston, TX 77001.
A technique is presented for feature extraction of a waveform y based on its Tauberian approximation, that is, on the approximation of y by a linear combination of appropriately delayed versions of a single basis function x, i.e., y(t) = ¿M i = 1 aix(t - ¿i), where the coefficients ai and the delays ¿i are adjustable parameters. Considerations in the choice or design of the basis function x are given. The parameters ai and ¿i, i=1, . . . , M, are retrieved by application of a suitably adapted version of Prony's method to the Fourier transform of the above approximation of y. A subset of the parameters ai and ¿i, i = 1, . . . , M, is used to construct the feature vector, the value of which can be used in a classification algorithm. Application of this technique to the classification of wide bandwidth radar return signatures is presented. Computer simulations proved successful and are also discussed.
Chia-Ling Hu, Rui J. P. De Figueiredo, "Waveform Feature Extraction Based on Tauberian Approximation", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 4, no. , pp. 105-116, February 1982, doi:10.1109/TPAMI.1982.4767214