A Fast DOA Algorithm Based on Propagator Method and Rotation Array

Xiao Yu Lan; Qing Yang Guan; Yan Zou

doi:10.4028/www.scientific.net/AMM.614.352

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 614A Fast DOA Algorithm Based on Propagator Method...

A Fast DOA Algorithm Based on Propagator Method and Rotation Array

Abstract:

It is known that computational complexity of the propagator method (PM) can be significantly smaller than those of MUSIC and ESPRIT because the PM does not require any eigenvalue decomposition (EVD) of the received data. However, most the algorithm based on PM requires more antenna elements than targets. In order to solve these issues, a novel low energy algorithm utilizing array base-line rotation for multiple targets estimation is proposed. By rotating two elements and setting a fixed time delay, even number of elements is selected to form a virtual UCA. Then, the received data of signals will be sampled at multiple positions, which improves the array elements utilization greatly. Simulations results verified the effectiveness of the proposed algorithm with high resolution and estimation accuracy performance.

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Periodical:

Applied Mechanics and Materials (Volume 614)

Pages:

352-355

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.614.352

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Online since:

September 2014

Authors:

Xiao Yu Lan*, Qing Yang Guan, Yan Zou

Keywords:

Array Rotation, Array Signal Processing, Direction of Arrival, Propagator Method

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