View full-text article in PMC Sensors (Basel). 2020 Jan 9;20(2):378. doi: 10.3390/s20020378 Search in PMC Search in PubMed View in NLM Catalog Add to search Copyright and License information © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). PMC Copyright notice Algorithm A1 Steering vectors computation. 1:procedureComputeSteeringVectors(C, θ, ω, Q, f, l) 2: c←299,792,458 m/s 3: λ←c/f 4: Ω← compute Equation (3) with θ and ω 5: V←exp(𝚥2πλ−1ΩC) 6: for q←1,Q do 7: ζq←sin(θq)−1[cos(πlcos(θq)λ−1)−cos(πlλ−1)] 8: end for 9: ζ← compute Equation (1) with ζ1ζ2⋯ζQ 10: Ψ←ζV 11: return Ψ 12: end procedure