Browsing Journal Articles by Author "Zakayo, Ndiku Morris"
Now showing items 1-5 of 5
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Acoustical Direction Finding using a Bayesian Regularized Multilayer Perceptron Artificial Neural Networks on a Tri-Axial Velocity Sensor
Nnonyelu, Chibuzo Joseph; Zakayo, Ndiku Morris (IJMEC, 2020-01)A two-dimensional direction-of-arrival estimation scheme based on Bayesian-regularized (BR) Multilayer Perceptron (MLP) artificial neural network (ANN) is developed around a unit acoustic vector sensor (AVS). The AVS ... -
A Centrosymmetric Array Comprising a Horizontal Uniform Circular Subarray and a Vertical Uniform Linear Subarray—Its Design in Reference to Its Direction-Finding Cramér–Rao Bound.
Lin, Yang; Wong, Kainam Thomas; Zakayo, Ndiku Morris (IEEE, 2021-06)Azimuthal centrosymmetry in an array grid is typically associated with arrays that are circular, concentric, cylindrical, spherical, or hemispherical. However, a recently proposed alternative combines an azimuthal circular ... -
Comparing the “Rim” Versus the “Filled” Rectangular Array Grids—Their Direction-Finding Cramér-Rao Bounds
Zakayo, Ndiku Morris; Wong, Kainam Thomas (IEEE, 2018)A rectangular array of sensors is often used in direction finding, due to the geometric regularity in its spatial rectangular grid. The sensor positions may be confined to the rectangle's perimeter (as in a “rim” array), ... -
Hybrid Cramer-Rao bound for near-field source localization using a spatially spread acoustic vector sensor
Zakayo, Ndiku Morris; Yuting, Han (Acoustical Society of America, 2019-03)This presentation characterizes the source-localization precision obtainable via "received signal strength indication" (RSSI) based on data from a tri-axial velocity sensor and a spatially separated pressure sensor. That ... -
On the Performance of L- and V-Shaped Arrays of Cardioid Microphones for Direction Finding
Nnonyelu, Chibuzo Joseph; Zakayo, Ndiku Morris; Chinaza, Alice Madukwe (IEEE, 2021-01-15)The L-shaped and V-shaped arrays of first-order cardioid microphones for direction finding are presented in this paper. A comparative study of the direction of arrival estimation performance of the arrays was carried out ...