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EnglishGiven a large antenna array of arbitrary geometry, the problem of synthesizing S desired patterns is considered, with two requirements: (a) each pattern can be transformed into any of the others by phase-only control, that is, the excitation amplitude applied to each array element holds constant during the reconfiguration process, although it can be different from the other excitation amplitudes; (b) the dynamic range ratio of the excitation amplitudes must be minimized, or reduced below a prescribed threshold. To this aim, we first propose the use of two deterministic methods: the first one minimizes a cost function, while the second one is based on an intersection approach and exploits the method of projections. A third approach is also considered, which minimizes a fitness function by a genetic algorithm. Numerical results of the three methods are mutually compared.
| Titolo: | Deterministic and Stochastic Methods for the Synthesis of Large-Scale Antenna Arrays |
| Autori: | |
| Data di pubblicazione: | 2011 |
| Abstract: | Given a large antenna array of arbitrary geometry, the problem of synthesizing S desired patterns is considered, with two requirements: (a) each pattern can be transformed into any of the others by phase-only control, that is, the excitation amplitude applied to each array element holds constant during the reconfiguration process, although it can be different from the other excitation amplitudes; (b) the dynamic range ratio of the excitation amplitudes must be minimized, or reduced below a prescribed threshold. To this aim, we first propose the use of two deterministic methods: the first one minimizes a cost function, while the second one is based on an intersection approach and exploits the method of projections. A third approach is also considered, which minimizes a fitness function by a genetic algorithm. Numerical results of the three methods are mutually compared. |
| Handle: | http://hdl.handle.net/11368/2409097 |
| ISBN: | 9781612849782 |
| Appare nelle tipologie: | 4.1 Contributo in Atti Convegno (Proceeding) |