天线组阵频域合成方法最佳子带划分数分析

doi:10.3969/j.issn.1001-506X.2020.10.02

Abstract

Abstract:

In order to analyze the optimal sub-band partition number in frequency domain beamforming method for wideband signals of antenna arraying quantitatively, firstly, a frequency domain beamforming method is described, and the system model of wideband signal combining is established. Then, the influence on the combining performance under the condition of tone signals is analyzed. Finally, through integral extension in the frequency domain, the combining loss formula under the condition of different sub-band partition number is obtained. Simulation results show that the higher the sub-band partition number is, the better the combining performance of the frequency domain beamforming is, as well as the hardware cost. Taking the combining loss and hardware cost as the evaluation indicators, the optimal sub-band partition number is 128.

Key words: antenna arraying, wideband signal, frequency domain combining, residual delay, sub-band partition, combining loss

CLC Number:

TN911

Yiwen JIAO, Hong MA, Yandu LIU, Yongqiang CHEN. Analysis on the optimal sub-band partition number in frequency domain combining for antenna arraying[J]. Systems Engineering and Electronics, 2020, 42(10): 2156-2163.

Figures/Tables 7

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Table 1

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References 21

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参数	设置值
K	64	128	256	512
R	44	88	176	352
N	2 816	5 632	11 264	22 528

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Analysis on the optimal sub-band partition number in frequency domain combining for antenna arraying

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