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
Anggaran arah ketibaan (DOA) telah menjadi tumpuan utama penyelidikan selama bertahun-tahun. Penyelidikan mengenai anggaran DOA terus menjadi sangat popular dalam bidang internet perkara, radar dan pemanduan pintar. Dalam makalah ini, rangka kerja DOA dua dimensi baharu yang ringkas dicadangkan di mana tatasusunan segi tiga digunakan untuk menerima isyarat gelombang berterusan termodulat frekuensi linear jalur lebar. Isyarat gema campuran daripada pelbagai sasaran dipisahkan kepada satu siri isyarat nada tunggal. Algoritma membuka bungkus digunakan pada fungsi perbezaan fasa isyarat nada tunggal. Dengan menggunakan kaedah kuasa dua terkecil agar sesuai dengan fungsi perbezaan fasa yang tidak dibalut, maklumat DOA bagi setiap sasaran diperolehi. Analisis teori dan simulasi menunjukkan bahawa rangka kerja mempunyai kelebihan berikut. Tidak seperti goniometri fasa tradisional, rangka kerja boleh menyelesaikan pertukaran antara jarak antena dan ketepatan goniometrik. Bilangan sasaran yang dikesan tidak dihadkan oleh bilangan antena. Selain itu, rangka kerja boleh memperoleh keputusan anggaran DOA yang sangat tepat.
Wentao ZHANG
Nanjing University of Science and Technology
Chen MIAO
Nanjing University of Science and Technology
Wen WU
Nanjing University of Science and Technology
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Salinan
Wentao ZHANG, Chen MIAO, Wen WU, "Multitarget 2-D DOA Estimation Using Wideband LFMCW Signal and Triangle Array Composed of Three Receiver Antennas" in IEICE TRANSACTIONS on Communications,
vol. E106-B, no. 4, pp. 307-316, April 2023, doi: 10.1587/transcom.2022EBP3084.
Abstract: Direction of arrival (DOA) estimation has been a primary focus of research for many years. Research on DOA estimation continues to be immensely popular in the fields of the internet of things, radar, and smart driving. In this paper, a simple new two-dimensional DOA framework is proposed in which a triangular array is used to receive wideband linear frequency modulated continuous wave signals. The mixed echo signals from various targets are separated into a series of single-tone signals. The unwrapping algorithm is applied to the phase difference function of the single-tone signals. By using the least-squares method to fit the unwrapped phase difference function, the DOA information of each target is obtained. Theoretical analysis and simulation demonstrate that the framework has the following advantages. Unlike traditional phase goniometry, the framework can resolve the trade-off between antenna spacing and goniometric accuracy. The number of detected targets is not limited by the number of antennas. Moreover, the framework can obtain highly accurate DOA estimation results.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2022EBP3084/_p
Salinan
@ARTICLE{e106-b_4_307,
author={Wentao ZHANG, Chen MIAO, Wen WU, },
journal={IEICE TRANSACTIONS on Communications},
title={Multitarget 2-D DOA Estimation Using Wideband LFMCW Signal and Triangle Array Composed of Three Receiver Antennas},
year={2023},
volume={E106-B},
number={4},
pages={307-316},
abstract={Direction of arrival (DOA) estimation has been a primary focus of research for many years. Research on DOA estimation continues to be immensely popular in the fields of the internet of things, radar, and smart driving. In this paper, a simple new two-dimensional DOA framework is proposed in which a triangular array is used to receive wideband linear frequency modulated continuous wave signals. The mixed echo signals from various targets are separated into a series of single-tone signals. The unwrapping algorithm is applied to the phase difference function of the single-tone signals. By using the least-squares method to fit the unwrapped phase difference function, the DOA information of each target is obtained. Theoretical analysis and simulation demonstrate that the framework has the following advantages. Unlike traditional phase goniometry, the framework can resolve the trade-off between antenna spacing and goniometric accuracy. The number of detected targets is not limited by the number of antennas. Moreover, the framework can obtain highly accurate DOA estimation results.},
keywords={},
doi={10.1587/transcom.2022EBP3084},
ISSN={1745-1345},
month={April},}
Salinan
TY - JOUR
TI - Multitarget 2-D DOA Estimation Using Wideband LFMCW Signal and Triangle Array Composed of Three Receiver Antennas
T2 - IEICE TRANSACTIONS on Communications
SP - 307
EP - 316
AU - Wentao ZHANG
AU - Chen MIAO
AU - Wen WU
PY - 2023
DO - 10.1587/transcom.2022EBP3084
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E106-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2023
AB - Direction of arrival (DOA) estimation has been a primary focus of research for many years. Research on DOA estimation continues to be immensely popular in the fields of the internet of things, radar, and smart driving. In this paper, a simple new two-dimensional DOA framework is proposed in which a triangular array is used to receive wideband linear frequency modulated continuous wave signals. The mixed echo signals from various targets are separated into a series of single-tone signals. The unwrapping algorithm is applied to the phase difference function of the single-tone signals. By using the least-squares method to fit the unwrapped phase difference function, the DOA information of each target is obtained. Theoretical analysis and simulation demonstrate that the framework has the following advantages. Unlike traditional phase goniometry, the framework can resolve the trade-off between antenna spacing and goniometric accuracy. The number of detected targets is not limited by the number of antennas. Moreover, the framework can obtain highly accurate DOA estimation results.
ER -