Title :
Space-time-scale analysis of electromagnetic waves
Author_Institution :
Dept. of Math., Massachusetts Univ., Lowell, MA, USA
Abstract :
The previously defined analytic-signal transform is used to extend electromagnetic waves from real space-time to complex space-time. This leads naturally to a family of elementary conformal wavelets, which can all be obtained by applying conformal transformations of space-time to a basic wavelet. The basic wavelet, is uniquely determined by analyticity considerations. These wavelets are parametrized by location x, time t, scale s and velocity v. An arbitrary wave can be decomposed into either stationary or moving wavelets. Such decompositions may be useful in the analysis of waves emitted by a moving source. There also exist decompositions suitable for accelerating sources
Keywords :
electromagnetic waves; signal processing; transforms; wavelet transforms; EM waves; accelerating sources; analytic-signal transform; analyticity considerations; complex space-time; conformal transformations; electromagnetic waves; elementary conformal wavelets; moving source; moving wavelets; real space-time; space time scale analysis; stationary wavelets; Acceleration; Electromagnetic analysis; Electromagnetic coupling; Electromagnetic fields; Electromagnetic scattering; Mathematics; Maxwell equations; Signal analysis; Signal processing; Wavelet analysis;
Conference_Titel :
Time-Frequency and Time-Scale Analysis, 1992., Proceedings of the IEEE-SP International Symposium
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-0805-0
DOI :
10.1109/TFTSA.1992.274200