Defence TechnologyRange-azimuth imaging of ground targets via frequency-modulated continuous wave (FMCW) radar is crucial for effective target detection. However, when the pitch of the moving array constructed during motion exceeds the physical array aperture, azimuth ...
Yanwen Han +5 more
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Efficient 2D adaptive beamforming algorithm based on sparse array optimisation
The Journal of Engineering, 2019 In this study, a 2D adaptive beamforming algorithm for sparse array is proposed. Firstly, a signal model based on matrix completion theory for adaptive beamforming in sparse array is established, which is proved to satisfy null space property.
Chaoyu Wang +3 more
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FDD Massive MIMO Channel Estimation with Arbitrary 2D-Array Geometry
, 2018 This paper addresses the problem of downlink channel estimation in frequency-division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems.
Dai, Jisheng +2 more
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The scheduling of sparse matrix-vector multiplication on a massively parallel dap computer [PDF]
, 1991 An efficient data structure is presented which supports general unstructured sparse matrix-vector multiplications on a Distributed Array of Processors (DAP). This approach seeks to reduce the inter-processor data movements and organises the operations in
Andersen, J, Mitra, G, Parkinson, D
core
A Nested-Nested Sparse Array Specially for Monostatic Colocated MIMO Radar with Increased Degree of Freedom. [PDF]
Sensors (Basel), 2023 Chen Y, Yang M, Li J, Zhang X.
europepmc +1 more source
Improved Sparrow Search Algorithm for Sparse Array Optimization
Modelling and Simulation in EngineeringThe synthesis problem of the number of array elements, array element spacing, and array formation is widely concerned in sparse array optimization. The local optimum problem is still an urgent problem to be solved in the existing optimization algorithms.
Juanjuan Ji +5 more
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A Sparse-Array Design Method Using Q Uniform Linear Arrays for Direction-of-Arrival Estimation. [PDF]
Sensors (Basel), 2023 Zhang J, Xu H, Ba B, Mei F.
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Thermos Array: Two-Dimensional Sparse Array with Reduced Mutual Coupling
International Journal of Antennas and Propagation, 2018 Sparse planar arrays, such as the billboard array, the open box array, and the two-dimensional nested array, have drawn lots of interest owing to their ability of two-dimensional angle estimation.
Lei Sun, Minglei Yang, Baixiao Chen
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Colocated MIMO Radar Waveform-Array Joint Optimization for Sparse Array. [PDF]
Sensors (Basel), 2023 Yin J, Ma R, Lin M, Zhou S.
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A Novel Nested Configuration Based on the Difference and Sum Co-Array Concept
Sensors, 2018 Recently, the concept of the difference and sum co-array (DSCa) has attracted much attention in array signal processing due to its high degree of freedom (DOF).
Zhenhong Chen +3 more
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