کنفرانس مهندسی برق ایران

صفحه اصلی / سی و دومین کنفرانس بین المللی مهندسی برق

Coherent Direction of Arrival Estimation using Multiple Toeplitz Space Time Spatial Smoothing

نویسندگان :

Sepehr Kouzegaran¹ MASOUMEH AZGHANI²

1- Sahand University of Technology 2- دانشگاه صنعتی سهند

کلمات کلیدی :

doa estimation

چکیده :

The direction of arrival (DOA) estimation task becomes more challenging when the sources are coherent. In this paper, a method has been suggested for the coherent DOA estimation. At first, the received signal of the uniform linear antenna array is divided into subarrays. For each of the subarrays, the multiple Toeplitz technique has been applied to produce the correlation matrix. Then, the forward backward smoothing has been exploited and the resultant correlation matrices are averaged over various snapshots to provide the improved-rank covariance matrix. At the last step, one of the sub-space based DOA estimation schemes are leveraged to estimate the DOAs of the coherent sources. The simulation results indicate that the proposed method is superior over its rivals in various scenarios.

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