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Direction-of-Arrival Estimation for Nested Array Using Mixed-Resolution ADCs

delete2022-08-01
delete12
PRE
AI
L
Lei Wang
C
Chunhui Ren *
R
Renting Liu
Z
Zhi Zheng
DOI：10.1109/LCOMM.2022.3178617delete
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Abstract

Abstract

En 中文
In this letter, an effective method for estimating direction-of-arrival (DOA) using the nested array via mixed-resolution (MR) quantization is developed. First, we derive the output signal model of the nested array under MR quantization, and utilize MR quantized data to construct a quantized covariance matrix. Subsequently, we recover an unquantized augmented covariance matrix by formulating a rank-minimization problem in the coarray domain. Finally, we perform DOA estimation using the recovered covariance matrix. The proposed method can achieve excellent performance close to that of the existing methods using high-resolution data. Simulation results demonstrate the validity of our approach.
Keywords:
Quantization (signal)
Direction-of-arrival estimation
Covariance matrices
Estimation
Sensor arrays
Manifolds
Signal to noise ratio
Direction-of-arrival (DOA) estimation
nested array
difference coarray
mixed-resolution (MR) ADCs

Journal

IEEE Communications Letters cover
IEEE Communications Letters
IF:
4.4
Papers:
1.3W
Citations:
2.2W

Organization

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