Low-complexity angle of arrival estimation of wideband signals using small arrays

When the signal to noise ratio is relatively high, the angle of arrival of the strongest signal can be estimated with a very simple method and a small 3D sensor array. The differences in the arrival times of the wideband signal received by spatially separated sensors are estimated using the polarity...

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Bibliographic Details
Published inProceedings of 8th Workshop on Statistical Signal and Array Processing pp. 109 - 112
Main Authors Yli-Hietanen, J., Kalliojarvi, K., Astola, J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1996
Subjects
Array signal processing
Delay effects
Delay estimation
Hardware
Laboratories
Quantization
Sampling methods
Sensor arrays
Signal to noise ratio
Wideband
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Summary:When the signal to noise ratio is relatively high, the angle of arrival of the strongest signal can be estimated with a very simple method and a small 3D sensor array. The differences in the arrival times of the wideband signal received by spatially separated sensors are estimated using the polarity coincidence correlation. These time differences, i.e. time delays, determine the angle of arrival. In this paper the effects of quantization of the time delays are studied. It is found out that this simple method gives comparable performance to the conventional direct correlation based methods in the case of a relatively high signal to noise ratio.
ISBN:0818675764
9780818675768
DOI:10.1109/SSAP.1996.534832