Array-based Direct Position Determination Method Fusing Doppler Frequency Shift Information

WANG Daming; REN Yanqing; LU Zhiyu; BA Bin; CUI Weijia

doi:10.11999/JEIT170608

Volume 40 Issue 5

May 2018

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Article Navigation > Journal of Electronics & Information Technology > 2018 > 40(5): 1219-1225

WANG Daming, REN Yanqing, LU Zhiyu, BA Bin, CUI Weijia. Array-based Direct Position Determination Method Fusing Doppler Frequency Shift Information[J]. Journal of Electronics & Information Technology, 2018, 40(5): 1219-1225. doi: 10.11999/JEIT170608

Citation:

WANG Daming, REN Yanqing, LU Zhiyu, BA Bin, CUI Weijia. Array-based Direct Position Determination Method Fusing Doppler Frequency Shift Information[J]. Journal of Electronics & Information Technology, 2018, 40(5): 1219-1225. doi: 10.11999/JEIT170608

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Array-based Direct Position Determination Method Fusing Doppler Frequency Shift Information

doi: 10.11999/JEIT170608

Funds:

The National Natural Science Foundation of China (61401513), The National High Technology Research and Development Program of China (2012AA01A502, 2012AA01A505)

Received Date: 2017-06-26
Rev Recd Date: 2018-02-24
Publish Date: 2018-05-19

Abstract

Abstract

The Direct Position Determination (DPD) methods outperform the classic two-step localization methods in localization accuracy, while the existing DPD methods based on array antenna models do not exploit Doppler frequency shift information to improve localization accuracy further. Fusing Doppler frequency shift information, a DPD method based on array antenna model is proposed to overcome the above mentioned shortcoming. Firstly, a DPD model fusing Doppler frequency shift information is constructed. Then, a maximum likelihood estimator is designed and emitters position estimation is transformed to calculating the maximum eigenvalue of the matrix containing location information. The property of eigenvalue keeping unchanged after matrix transpose is used to simplify the calculation. Finally, the emitters position is estimated via a two-dimensional grid search. Simulations show that the proposed method is superior over the DPD methods based on array antenna models and the DPD methods only using Doppler frequency shift information in localization accuracy.
- Array signal processing,
- Direct Position Determination (DPD),
- Doppler frequency shift,
- Angle Of Arrival (AOA)

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References(23)

References

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