Sparse Array Design Methods Based on Hole Analysis of the Coprime Array

LIU Ke; ZHU Zezheng; YU Jun; MA Junda

doi:10.11999/JEIT201024

Volume 44 Issue 1

Jan. 2022

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LIU Ke, ZHU Zezheng, YU Jun, MA Junda. Sparse Array Design Methods Based on Hole Analysis of the Coprime Array[J]. Journal of Electronics & Information Technology, 2022, 44(1): 372-379. doi: 10.11999/JEIT201024

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LIU Ke, ZHU Zezheng, YU Jun, MA Junda. Sparse Array Design Methods Based on Hole Analysis of the Coprime Array[J]. Journal of Electronics & Information Technology, 2022, 44(1): 372-379. doi: 10.11999/JEIT201024

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Sparse Array Design Methods Based on Hole Analysis of the Coprime Array

doi: 10.11999/JEIT201024

LIU Ke^{1, 2
,
,},
ZHU Zezheng²,
YU Jun²,
MA Junda²

1.
The Higher Educational Key Laboratory for Measuring & Control Technology and Instrumentation of Heilongjiang Province, Harbin University of Science and Technology, Harbin 150080, China
2.
School of Automation, Harbin University of Science and Technology, Harbin 150080, China

Received Date: 2020-12-07
Rev Recd Date: 2021-10-12

Available Online: 2021-11-16

Publish Date: 2022-01-10

Abstract

Abstract

For the problem of a low number of consecutive lags and high redundancy of sensors in the coprime array, two sparse arrays are proposed in this paper. First, by analyzing the influence of the sensor positions on the unique lags and consecutive lags of the difference coarray, it is concluded that the range of the consecutive lags in the coprime array is not changed after removing the specific sensors. Then, entire array structure is optimized while keeping the number of sensors unchanged, increasing the number of consecutive lags. Afterward, mathematical expressions of the consecutive lags and degree of freedoms of the proposed arrays are derived respectively. Finally, simulations are carried out with the same physical sensors and the identical estimation method to verify the DOA estimation performance of the proposed sparse arrays.
- Coprime array,
- Sparse array,
- Correlation lags,
- Direction-Of-Arrival (DOA) estimation

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References(19)

References

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