Effect of Antenna Noise on Angle-of-Arrival Estimation of Ultrawideband Receivers
| Autor: | Adrian Eng-Choon Tan, Karumudi Rambabu, Michael Yan-Wah Chia |
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| Rok vydání: | 2011 |
| Předmět: |
Noise measurement
Acoustics Condensed Matter Physics Noise (electronics) Atomic and Molecular Physics and Optics Standard deviation Antenna array Signal-to-noise ratio Angle of arrival Electronic engineering Electrical and Electronic Engineering Antenna (radio) Root-mean-square deviation Computer Science::Information Theory Mathematics |
| Zdroj: | IEEE Transactions on Electromagnetic Compatibility. 53:11-17 |
| ISSN: | 1558-187X 0018-9375 |
| DOI: | 10.1109/temc.2010.2099122 |
| Popis: | This paper presents a method for predicting the angle-of-arrival (AOA) using ultrawideband time-difference-of-arrival technique, when the received signal is corrupted by antenna noise. To predict the accuracy of the AOA, the probability density function of the estimated AOA and the standard deviation (rms error) are derived. Numerical simulations and measurements for AOA, in thermal noise conditions, are carried out for three different SNRs. The rms error of the measured and simulated AOAs is then compared with the theoretical standard deviation. The measurements are done with two ridged-horn antennas placed on a turn-table and the received signals are recorded (50 times) at intervals of 1° between -20° and +20°. Accuracy of the proposed AOA estimation model is validated by simulations and measurements. |
| Databáze: | OpenAIRE |
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