Interference mitigation for GNSS receivers with dual‐polarised sensitive arrays in the joint space–frequency–polarisation domain

Wang, Haiyang; Yao, Zhicheng; Zhang, Fan; Liu, Guangbin

doi:10.1049/iet-rsn.2018.5350

Cited by 2 publications

(1 citation statement)

References 23 publications

(23 reference statements)

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“…Adaptive array processing technology has penetrated plenty of aspects of both civilian and military applications for interference mitigation [1][2][3]. The traditional adaptive array can complete the spatial filtering depending on the difference in the direction of arrival (DOA) of signals, making it available to receive the expected signal and eliminate interference concurrently [4,5].…”

Section: Introductionmentioning

confidence: 99%

Adaptive interference mitigation space‐time array reconfiguration by joint selection of antenna and delay tap

Sun,

Xie,

Gong

et al. 2023

IET Radar Sonar & Navi

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Space‐time adaptive processing (STAP) array has found extensive use in the global navigation satellite system for interference suppression. Nevertheless, the conventional space‐time array necessitates multiple antennas and time delay taps, resulting in a heavy burden on both hardware and computation resources. Thus, lowering the cost and complexity of STAP becomes a considerable problem demanding prompt solutions. This work designs a space‐time array reconfiguration scheme based on the joint selection strategy of the antenna and delay tap to address this problem. The reconstructed array can induce a high signal to interference plus noise power ratio (SINR) when using fewer antennas and delay taps. The space‐time correlation coefficient (STCC) is first presented to manifest the influence of reconfiguration on output SINR. Then, we formulate the space‐time array reconfiguration mathematical model, aiming to minimise STCC. Two reconfiguration methods are provided to solve the optimal array configuration of antennas and delay taps that can reach the minimum STCC and maximum SINR. The optimal antenna‐delay tap pairs are finally selected to comprise the reconstructed array. Substantial simulation experiments verify that the presented scheme and strategy are effective and reliable in space‐time array reconfiguration.

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