Suboptimal approximation/identification of transient waveforms from electromagnetic systems by pencil-of-function method
Abstract
A noniterative method for approximating signals by a linear combination of exponentials provides suboptimal identification of transient waveforms for electromagnetic systems by the pencil-of-functions method. The system can be modeled by a black box with access only to the input and output terminals; the method is demonstrated for determining multiple poles of a system with residues at the poles when the system output for a given input is known. The method is insensitive to noise in the data and can determine signal order; sample calculations are made of poles from a transient response of a conducting pipe tested at the ATHAMAS-I simulator.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- November 1980
- DOI:
- 10.1109/TAP.1980.1142411
- Bibcode:
- 1980ITAP...28..928S
- Keywords:
-
- Approximation;
- Electromagnetic Radiation;
- System Identification;
- Transfer Functions;
- Transient Response;
- Waveforms;
- Computerized Simulation;
- Electromagnetic Scattering;
- Exponential Functions;
- Laplace Transformation;
- Series Expansion;
- Signal Measurement;
- Signal Processing;
- Singularity (Mathematics);
- Communications and Radar