DOA Estimation Based on the Improved Direct Data Domain Method with One Sample

XIE Hu; DANG Hongxing; TAN Xiaomin; FENG Dazheng

doi:10.11999/JEIT151398

Volume 38 Issue 9

Sep. 2016

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XIE Hu, DANG Hongxing, TAN Xiaomin, FENG Dazheng. DOA Estimation Based on the Improved Direct Data Domain Method with One Sample[J]. Journal of Electronics & Information Technology, 2016, 38(9): 2371-2376. doi: 10.11999/JEIT151398

Citation:

XIE Hu, DANG Hongxing, TAN Xiaomin, FENG Dazheng. DOA Estimation Based on the Improved Direct Data Domain Method with One Sample[J]. Journal of Electronics & Information Technology, 2016, 38(9): 2371-2376. doi: 10.11999/JEIT151398

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DOA Estimation Based on the Improved Direct Data Domain Method with One Sample

doi: 10.11999/JEIT151398

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Received Date: 2015-12-09
Rev Recd Date: 2016-05-27
Publish Date: 2016-09-19

Abstract

Abstract

Many of the high-resolution Direction Of Arrival (DOA) estimation methods fail to estimate the DOAs of incoming signals and distinguish the two close signals under small sample support; especially only one snapshot is available. To handle this problem, a novel DOA method based on improved Direct Data Domain (D3) technique is proposed. The basic ideal of the proposed method is to augment the time domain samples by sacrificing the space domain degree. Firstly, by splitting the entire array into many overlapping sub-array, many low-dimension samples can be obtained. Secondly, utilizing the property of far-filed narrowband signal that its amplitude response on each array is the same, a new constraint is imposed. Experimental results indicate that the resolution of the propsed method is superior to the conventional algorithms.
- DOA estimation,
- Small sample support,
- High-resolution,
- Sub-array sliding,
- Direct Data Domain (D3)

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References(20)

References

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