Robust Direction of Arrival Estimation of Wideband LFM Signals using Dechirping Algorithms with a few Snapshots in the Linear Array

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Partovi Sangi Abbas; Jamali Jasem; Fatehi Dindarlou Mohammadhossein; GHANBARIAN MOHAMMAD MEHDI

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Journal: JOURNAL OF COMMUNICATION ENGINEERING Year:2022 | Volume:11 | Issue:43 Page(s): 1-13

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Information Journal Paper

Title

Robust Direction of Arrival Estimation of Wideband LFM Signals using Dechirping Algorithms with a few Snapshots in the Linear Array

Author(s)

Partovi Sangi Abbas | Jamali Jasem | Fatehi Dindarlou Mohammadhossein | GHANBARIAN MOHAMMAD MEHDI | Issue Writer Certificate

Keywords

Dechirping algorithm

FFT Transform

LFM signals

MSPICE method

ULA

Abstract

Wideband linear frequency modULAtion (LFM) signals are widely used in systems such as radar, sonar and mobile. DOA estimation algorithms LFM signals rely on a large number of time frames (Snapshot). Therefore, they are not suitable for low power and real-time applications. In this paper, we present a low computation based estimation method based on the SPICE algorithm for linear arrays using the Fourier transform FFT. The method is to first develop the Dechirping algorithm for LFM signals using the FFT converter, then modify the SPICE algorithm for uniform linear arrays (ULA), then obtain the DOA calcULAtions for a few number of snapshots with low computational volumes. The simULAtion results of the proposed MSPICE algorithm (i. e. modified SPICE algorithm) show that the proposed algorithm is better than other algorithms such as MUSIC and SPICE. We have shown that the proposed method has acceptable accuracy in both low SNRs and low error in high SNRs. In addition, in terms of computational volume, it is much less than the MUSIC and SPICE methods and will have a good robustness compared to other methods.

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APA: Copy

Partovi Sangi, Abbas, Jamali, Jasem, Fatehi Dindarlou, Mohammadhossein, & GHANBARIAN, MOHAMMAD MEHDI. (2022). Robust Direction of Arrival Estimation of Wideband LFM Signals using Dechirping Algorithms with a few Snapshots in the Linear Array. JOURNAL OF COMMUNICATION ENGINEERING, 11(43 ), 1-13. SID. https://sid.ir/paper/958325/en

Vancouver: Copy

Partovi Sangi Abbas, Jamali Jasem, Fatehi Dindarlou Mohammadhossein, GHANBARIAN MOHAMMAD MEHDI. Robust Direction of Arrival Estimation of Wideband LFM Signals using Dechirping Algorithms with a few Snapshots in the Linear Array. JOURNAL OF COMMUNICATION ENGINEERING[Internet]. 2022;11(43 ):1-13. Available from: https://sid.ir/paper/958325/en

IEEE: Copy

Abbas Partovi Sangi, Jasem Jamali, Mohammadhossein Fatehi Dindarlou, and MOHAMMAD MEHDI GHANBARIAN, “Robust Direction of Arrival Estimation of Wideband LFM Signals using Dechirping Algorithms with a few Snapshots in the Linear Array,” JOURNAL OF COMMUNICATION ENGINEERING, vol. 11, no. 43 , pp. 1–13, 2022, [Online]. Available: https://sid.ir/paper/958325/en

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