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A scheme of direction-of-arrival (DoA) estimation is proposed based on 2D-ESPRIT algorithm with multiple combinations of subarrays. The pairs of elevation and azimuth angles are obtained by applying the standard 2D-ESPRIT algorithm to three combinations of two set-of-subarrays in a 7-element hexagonal array. The pairs obtained from one of three combinations are permuted according to the descending...
A simple DoA estimator is proposed with a switched beam antenna. The estimator is implemented with an adjacent pattern power ratio algorithm. For a single source signal, the received signal powers are measured while the antenna switches over a set of measured directive beam patterns. The pattern that exhibits the maximum received signal power is chosen. Then, the ratio between the pattern adjacent...
Hamiltonian algorithm with momentum attenuation is proposed for adaptive beamforming of ESPAR antenna. Hamiltonian algorithm is a good tool for nonlinear optimizations, and intends to meet the two conflicting requirements to being deterministic and to being free from local minima in the non-linear optimization. The proposed algorithm is an extension of Hamiltonian algorithm by introducing the momentum...
An adjacent pattern power ratio algorithm is proposed for DoA estimation with a switched beam antenna. For a single source signal, the received signal powers are measured while the antenna switches over a set of directive beam patterns. The pattern that exhibits the maximum received signal power is chosen. Then, the ratio between the pattern adjacent to the chose pattern and the chose pattern, is...
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