The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Penerima Sistem Satelit Navigasi Global (GNSS) sering menyedari keupayaan anti-jamming dengan menggabungkan antena tatasusunan dengan pemprosesan penyesuaian ruang masa (STAP). Malangnya, dalam menyekat gangguan, STAP asas merendahkan isyarat GNSS. Untuk satu perkara, ralat fasa pembawa tambahan dan ralat fasa kod kepada isyarat GNSS diperkenalkan; untuk satu lagi, bentuk fungsi korelasi silang (CCF) akan diherotkan oleh STAP, memperkenalkan ralat penjejakan apabila penerima berada dalam mod penjejakan. Kedua-duanya akhirnya akan menyebabkan bias Pseudo-Julat (PR) tambahan, dan masalah ini menghalang STAP daripada digunakan secara langsung pada penerima navigasi satelit berketepatan tinggi. Makalah ini mencadangkan kaedah anti-jamming novel berdasarkan STAP yang menyelesaikan masalah di atas. Pertama, kaedah yang dicadangkan membina STAP simetri dengan mengekang pekali STAP. Selepas itu, dengan maklumat vektor stereng, penapis FIR pampasan dilantun selepas STAP simetri. Pendekatan ini memastikan kaedah yang dicadangkan hanya memperkenalkan ofset tetap kepada fasa kod dan fasa pembawa, dan susunan STAP menentukan sepenuhnya ofset, yang boleh diberi pampasan semasa pengukuran PR. Sementara itu, kaedah yang dicadangkan mengekalkan simetri CCF, dan penerima boleh menjejaki fasa pembawa dan fasa kod dalam mod penjejakan dengan tepat. Keberkesanan kaedah yang dicadangkan disahkan melalui simulasi, yang mencadangkan bahawa, dalam kes yang paling teruk, kaedah kami tidak meningkatkan ralat fasa pembawa dan kod dan ralat penjejakan dengan mengorbankan hanya penurunan 2.86dB dalam prestasi penindasan gangguan.
Fankun ZENG
the University of Chinese Academy of Sciences,the Institute of Microelectronics of Chinese Academy of Science
Xin QIU
the Institute of Microelectronics of Chinese Academy of Science
Jinhai LI
the Institute of Microelectronics of Chinese Academy of Science
Haiyang LIU
the Institute of Microelectronics of Chinese Academy of Science
Xiaoran CHEN
the Institute of Microelectronics of Chinese Academy of Science
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Salinan
Fankun ZENG, Xin QIU, Jinhai LI, Haiyang LIU, Xiaoran CHEN, "A Distortionless Anti-Jamming Method Based on STAP for GNSS Receiver" in IEICE TRANSACTIONS on Communications,
vol. E105-B, no. 11, pp. 1467-1476, November 2022, doi: 10.1587/transcom.2021EBP3186.
Abstract: Global Navigation Satellite System (GNSS) receivers often realize anti-jamming capabilities by combining array antennas with space-time adaptive processing (STAP). Unfortunately, in suppressing the interference, basic STAP degrades the GNSS signal. For one thing, additional carrier phase errors and code phase errors to the GNSS signal are introduced; for another, the shape of the cross-correlation function (CCF) will be distorted by STAP, introducing tracking errors when the receiver is in tracking mode. Both of them will eventually cause additional Pseudo-Range (PR) bias, and these problems prevent STAP from being directly applied to high-precision satellite navigation receivers. The paper proposes a novel anti-jamming method based on STAP that solves the above problems. First, the proposed method constructs a symmetric STAP by constraining the STAP coefficients. Subsequently, with the information of the steering vector, a compensation FIR filter is cascaded after the symmetric STAP. This approach ensures that the proposed method introduces only a fixed offset to the code phase and carrier phase, and the order of the STAP completely determines the offset, which can be compensated during PR measurements. Meanwhile, the proposed method maintains the symmetry of the CCF, and the receiver can accurately track the carrier phase and code phase in tracking mode. The effectiveness of the proposed method is validated through simulations, which suggest that, in the worst case, our method does not increase carrier and code phase errors and tracking error at the expense of only a 2.86dB drop in interference suppression performance.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2021EBP3186/_p
Salinan
@ARTICLE{e105-b_11_1467,
author={Fankun ZENG, Xin QIU, Jinhai LI, Haiyang LIU, Xiaoran CHEN, },
journal={IEICE TRANSACTIONS on Communications},
title={A Distortionless Anti-Jamming Method Based on STAP for GNSS Receiver},
year={2022},
volume={E105-B},
number={11},
pages={1467-1476},
abstract={Global Navigation Satellite System (GNSS) receivers often realize anti-jamming capabilities by combining array antennas with space-time adaptive processing (STAP). Unfortunately, in suppressing the interference, basic STAP degrades the GNSS signal. For one thing, additional carrier phase errors and code phase errors to the GNSS signal are introduced; for another, the shape of the cross-correlation function (CCF) will be distorted by STAP, introducing tracking errors when the receiver is in tracking mode. Both of them will eventually cause additional Pseudo-Range (PR) bias, and these problems prevent STAP from being directly applied to high-precision satellite navigation receivers. The paper proposes a novel anti-jamming method based on STAP that solves the above problems. First, the proposed method constructs a symmetric STAP by constraining the STAP coefficients. Subsequently, with the information of the steering vector, a compensation FIR filter is cascaded after the symmetric STAP. This approach ensures that the proposed method introduces only a fixed offset to the code phase and carrier phase, and the order of the STAP completely determines the offset, which can be compensated during PR measurements. Meanwhile, the proposed method maintains the symmetry of the CCF, and the receiver can accurately track the carrier phase and code phase in tracking mode. The effectiveness of the proposed method is validated through simulations, which suggest that, in the worst case, our method does not increase carrier and code phase errors and tracking error at the expense of only a 2.86dB drop in interference suppression performance.},
keywords={},
doi={10.1587/transcom.2021EBP3186},
ISSN={1745-1345},
month={November},}
Salinan
TY - JOUR
TI - A Distortionless Anti-Jamming Method Based on STAP for GNSS Receiver
T2 - IEICE TRANSACTIONS on Communications
SP - 1467
EP - 1476
AU - Fankun ZENG
AU - Xin QIU
AU - Jinhai LI
AU - Haiyang LIU
AU - Xiaoran CHEN
PY - 2022
DO - 10.1587/transcom.2021EBP3186
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E105-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2022
AB - Global Navigation Satellite System (GNSS) receivers often realize anti-jamming capabilities by combining array antennas with space-time adaptive processing (STAP). Unfortunately, in suppressing the interference, basic STAP degrades the GNSS signal. For one thing, additional carrier phase errors and code phase errors to the GNSS signal are introduced; for another, the shape of the cross-correlation function (CCF) will be distorted by STAP, introducing tracking errors when the receiver is in tracking mode. Both of them will eventually cause additional Pseudo-Range (PR) bias, and these problems prevent STAP from being directly applied to high-precision satellite navigation receivers. The paper proposes a novel anti-jamming method based on STAP that solves the above problems. First, the proposed method constructs a symmetric STAP by constraining the STAP coefficients. Subsequently, with the information of the steering vector, a compensation FIR filter is cascaded after the symmetric STAP. This approach ensures that the proposed method introduces only a fixed offset to the code phase and carrier phase, and the order of the STAP completely determines the offset, which can be compensated during PR measurements. Meanwhile, the proposed method maintains the symmetry of the CCF, and the receiver can accurately track the carrier phase and code phase in tracking mode. The effectiveness of the proposed method is validated through simulations, which suggest that, in the worst case, our method does not increase carrier and code phase errors and tracking error at the expense of only a 2.86dB drop in interference suppression performance.
ER -