The use of phase difference trace functions for bearing estimation with small circular arrays
A geometric interpretation of the space-time data from an array of elements called the "trace function" by the authors is used to form an estimate of the bearing of a plane wave sinusoidal signal impinging upon a circular array of small diameter compared to a wavelength. A minimum mean-squ...
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| Veröffentlicht in: | IEEE transactions on acoustics, speech, and signal processing speech, and signal processing, 1981-06, Vol.29 (3), p.501-507 |
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| container_end_page | 507 |
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| container_issue | 3 |
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| container_title | IEEE transactions on acoustics, speech, and signal processing |
| container_volume | 29 |
| creator | Sackman, G. Shelef, S. |
| description | A geometric interpretation of the space-time data from an array of elements called the "trace function" by the authors is used to form an estimate of the bearing of a plane wave sinusoidal signal impinging upon a circular array of small diameter compared to a wavelength. A minimum mean-square error (MMSE) bearing estimator is derived using phase differences between pairs of elements. An estimator is also derived for wave propagation speed. The processor was simulated on a digital computer and the standard deviation of bearing error as a function of variance of phase difference and diameter of array is compared to the Cramér-Rao lower bound. |
| doi_str_mv | 10.1109/TASSP.1981.1163556 |
| format | Article |
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A minimum mean-square error (MMSE) bearing estimator is derived using phase differences between pairs of elements. An estimator is also derived for wave propagation speed. 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| ispartof | IEEE transactions on acoustics, speech, and signal processing, 1981-06, Vol.29 (3), p.501-507 |
| issn | 0096-3518 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Acoustic propagation Array signal processing Computational modeling Computer errors Computer simulation Delay estimation Direction of arrival estimation Phase estimation Phased arrays Sensor arrays |
| title | The use of phase difference trace functions for bearing estimation with small circular arrays |
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