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Phase-space beam summation : A local spectrum analysis of time-dependent radiation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Melamed, Timor |
| Copyright Year | 1997 |
| Abstract | The phase-space beam summation is a general analytical framework for local analysis and modeling of radiation from extended source distributions. In this formulation the field is expressed as a superposition of beam propagators that emanate from all points in the source domain and in all directions. The theory is presented here for both time-harmonic and time-dependent fields: in the later case, the propagators are pulsed-beams (PB). The phase-space spectrum of beam propagators is matched locally to the source distribution via local spectral transforms: a local Fourier transform for time-harmonic fields and a "local Radon transform" for time-dependent fields. These transforms extract the local radiation properties of the source distributions and thus provide a priori localized field representations. Some of these basic concepts have been introduced previously for two-dimensional configurations. The present paper extends the theory to three dimensions, derives the operative expressions for the transforms a. |
| Starting Page | 739 |
| Ending Page | 773 |
| Page Count | 35 |
| File Format | PDF HTM / HTML |
| DOI | 10.1163/156939397X00945 |
| Volume Number | 11 |
| Alternate Webpage(s) | http://www.ee.bgu.ac.il/~timormel/index_files/pspb.pdf |
| Alternate Webpage(s) | https://doi.org/10.1163/156939397X00945 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
