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Article Dans Une Revue IEEE Communications Letters Année : 2021

Improved Coprime Linear Array Configuration for Moving Platform in DOA Estimation

Résumé

Moving platform based coprime linear arrays(CLAs) have been studied in recent years. It is shown that byshifting a CLA a half wavelength, the resulting difference coarraycan be regarded as the union of the difference coarray of theoriginal CLA and its two shifted versions with one lag to theleft and one lag to the right, respectively, filling the majority orall holes in the difference coarray. However, only the lags whichare neighbors of holes are actually useful, while the shifts of theother lags generate lags which already exist, contributing thennegligibly to the increase of the degrees of freedom (DOFs). Inthis letter, an improved CLA configuration for moving platform isproposed. By judiciously designing the sensor positions, all lagscan be utilized to fill holes, consequently a difference coarraywith more consecutive lags can be obtained. Compared withthe original configuration, the proposed configuration can detectmore sources with the same number of sensors and same lengthof array motion.
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Dates et versions

hal-02958672 , version 1 (17-02-2021)

Identifiants

Citer

Xiao Yang, Yide Wang, Pascal Chargé. Improved Coprime Linear Array Configuration for Moving Platform in DOA Estimation. IEEE Communications Letters, 2021, 25 (2), pp.470-473. ⟨10.1109/LCOMM.2020.3029322⟩. ⟨hal-02958672⟩
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