Results 101 to 110 of about 656 (191)

Space-Time Adaptive Processing for Airborne Radars With Space-Time Coprime Sampling Structure

IEEE Access, 2018
Coprime arrays and coprime time samplers have been receiving attractive attention recently due to their advantages of large apertures and achievable degrees of freedom with low cost.
Xiaoye Wang, Zhaocheng Yang, Huiping Huang, Jianjun Huang, Mei Jiang   +4 more
doaj   +1 more source

Triple extended coprime array for single‐snapshot DoA estimation

Electronics Letters
The direction‐of‐arrival (DoA) estimation methods based on coprime array (CA) largely rely on having a sufficient number of snapshots. However, under single‐snapshot conditions typical of vehicle‐mounted imaging radar, CA‐based DoA estimation often ...
Tianyao Long, Lei Huang, Qiang Li, Wei Wang   +3 more
doaj   +1 more source

Coherent DOA estimation based on low-rank matrix recovery with coprime arrays in nonuniform noise

EURASIP Journal on Advances in Signal Processing
In this paper, a novel low-rank matrix recovery-based direction of arrival estimation algorithm is proposed for coherent signals with coprime arrays under nonuniform noise conditions.
Youzhen Yang, Jianhui Wang, Zhenyu Wang
doaj   +1 more source

A novel improved symmetric coprime MIMO array for DOA estimation of coherent signals

International audienceCompared to the traditional passive detection co-prime array, co-prime MIMO array has the advantage of detecting coherent signals.
Wang, Yide, Yu, Jinhui, Ji, Fei, Xu, Yi
core   +1 more source

COPRIME ARRAYS WITH ENHANCED DEGREES OF FREEDOM

Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering, 2018
Coprime array geometries provide robust performance for direction-of-arrival estimation problem with more sources than sensor elements. In previous works it is shown that K source directions can be resolved using only 2M + N -1 sensor elements where K is less than or equal to MN.
openaire   +3 more sources

Improved 2D Coprime Array Structure with the Difference and Sum Coarray Concept

, 2020
Recently, the difference and sum (diff-sum) coarray has attracted much attention in one-dimensional direction-of-arrival estimation for its high degrees-of-freedom (DOFs).
Zesong Fei, Guiyu Wang, Xiaoran Li, Shiwei Ren   +3 more
core   +1 more source

DOA Estimation Based on Golden Ratio-Inspired Coprime Array

To address the challenges of limited degrees of freedom (DOF) and mutual coupling effects in sparse array-based Direction-of-arrival (DOA) estimation, this paper proposes a novel array configuration termed the Golden ratio Inspired Coprime Array (GICA ...
Jialiang Zhang, Hui Cao, Kehao Wang, Zhou Yang   +3 more
core   +1 more source

Coprime Sampling and Arrays in One and Multiple Dimensions

, 2012
his chapter gives an overview of the concept of coprime sampling. The basic idea is that a continuous-time (or spatial) signal is sampled simultaneously by two sets of samplers, with sampling rates 1∕MT and 1∕NT where M and N are coprime integers and T>0.
Piya Pal, Pal, Piya, P. P. Vaidyanathan, Vaidyanathan, P. P.   +3 more
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Efficient and Robust Adaptive Beamforming Based on Coprime Array Interpolation

Unlike uniform linear arrays (ULAs), coprime arrays require fewer physical sensors yet provide higher degrees of freedom (DOF) and larger array apertures.
Weibo Deng, Siming Chen, Xin Zhang, Xiaochuan Wu, Shujie Li   +4 more
core   +1 more source

Sparse Sensing with Semi-Coprime Arrays

, 2018
A semi-coprime array (SCA) interleaves two undersampled uniform linear arrays (ULAs) and a $Q$ element standard ULA. The undersampling factors of the first two arrays are $QM$ and $QN$ respectively where $M$ and $N$ are coprime. The resulting non-uniform linear array is highly sparse.
openaire   +2 more sources