Classification of signals by using normal orthogonal transformation
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2011, Vol 0, Issue 47
Abstract
Possibility of pattern recognition is considered on the procedure of creation of discrete ortogonal transformation offered by an author, in that the first transform coincides with a etalon signal. At the coincidence of the investigated signal with a test the spectrum of such transformation contains one unzero transform only, while appearance of other transforms in a spectrum testifies to their differences. Application of normal transformation for the estimation of similarity of signals by coefficients of transforms allows to enter numeral measure of estimation of such similarity. Procedure of recognition is widespread on the cases of two-dimensional and complex signals. Results over of the use of normal transformation are brought for the tasks of authentification of person by the dinamically entered signature and classification of the state of person by the pulse wave.
Authors and Affiliations
Y. Nizhebetska
Electrodynamics multi-band antennas
This paper presents a method for determining the multiband antenna radiation pattern, which is based on the fractal Serpinski antenna. The method is based on a conditional subdivision radiating structures at elementary r...
Correlation radio range finder
In work widely known methods of range measuring are short characterized. The basic attention is given features of signal processing in a correlation method of range measuring. The signal with angular modulation with one-...
Using fractal analysis of the time-frequency spectra of vibroacoustical signals for diagnostic of gas-turbine engines
The article is devoted to the improvement of signal processing methods of complex vibroacoustical signals for the diagnosis of initial crack-like damage in the blades of aircraft gas-turbine engines during operation. The...
Normalization of a test signal with preservation of an equal discrete step
New method of normalization was proposed. This method applies normalization of signal using current values of the signal. The step of discrete of the processed signal is equal.
Availability estimation of navigation aids
Ground network of waypoints has been commonly used for different navigation tasks. Detection and positioning of aircraft location line in 3D airspace are the most important of them. Aircraft location determination by sig...