Far-field errors due to random noise in cylindrical near-field measurements
A full characterization of the far-field noise obtained from cylindrical near-field to far-field transformation, for a white Gaussian, space stationary, near-field noise is derived. A possible source for such noise is the receiver additive noise. The noise characterization is done by obtaining the a...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1992 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/1763 |
| Acceso en línea: | https://hdl.handle.net/2117/1763 |
| Access Level: | acceso abierto |
| Palabra clave: | Antennas (Electronics) Antenna measurements Antenna radiation patterns Autocorrelation Cylindrical near-field measurements Error analysis Far-field noise Lower bounds Measurement errors Near-field noise Near-field to far-field transformation Random noise Space stationary noise Upper bounds White Gaussian noise Antenes (Electrònica) -- Models matemàtics Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica |
| Sumario: | A full characterization of the far-field noise obtained from cylindrical near-field to far-field transformation, for a white Gaussian, space stationary, near-field noise is derived. A possible source for such noise is the receiver additive noise. The noise characterization is done by obtaining the autocorrelation of the far-field noise, which is shown to be easily computed during the transformation process. Even for this simple case, the far-field noise has complex behavior dependent on the measurement probe. Once the statistical properties of the far-field noise are determined, it is possible to compute upper and lower bounds for the antenna radiation pattern for a given probability. These bounds define a strip within the radiation pattern with the desired probability. This may be used as part of a complete near-field error analysis of a particular cylindrical near-field facility. |
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