Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Ridalise Louw"'
Autor:
Rina-Mari Weideman, Ridalise Louw, Ferre Knaepkens, Dirk De Villiers, Annie Cuyt, Wen-Shin Lee, Stefan J. Wijnholds
Publikováno v:
2022 International Conference on Electromagnetics in Advanced Applications (ICEAA).
Publikováno v:
2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).
This paper presents an investigation into the practical performance of a direction of arrival (DOA) estimation method for sparse regular arrays, called VEXPA. Its ability to estimate the number of incoming signals through cluster analysis is compared
Autor:
Annie Cuyt, Stefan J. Wijnholds, Ridalise Louw, Ferre Knaepkens, Dirk I. L. de Villiers, Wen-shin Lee, Rina-Mari Weideman
Publikováno v:
2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).
Accurate placement of elements in large antenna arrays is a difficult and costly process. We explore the use of the validated exponential analysis (VEXPA) technique that was previously formulated to solve a direction-of-arrival (DOA) estimation probl
Autor:
Annie Cuyt, Dirk I. L. de Villiers, Ferre Knaepkens, Ridalise Louw, Rina-Mari Weideman, Wen-shin Lee
Publikováno v:
2019 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC).
Recently, a new algorithm for robust direction of arrival (DoA) estimation, using regular sparse array antenna systems, was described in [1]. Aliasing (grating lobes) is removed through the use of two sparse arrays - one a shifted version of the othe
Publikováno v:
International journal of numerical modelling: electronic networks, devices and fields
This paper describes the design of sinuous antenna reflector feeds using blended rational interpolation. The blended rational interpolation method is developed to interpolate a sparse set of high‐fidelity (HF) data while following the trends of a d
Publikováno v:
19th International Conference on Electromagnetics in Advanced, Applications (ICEAA), SEP 11-15, 2017, Verona, ITALY
2017 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA)
2017 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA)
Over the past few years there is a clear trend towards design exploration using mathematical modelling. The data sets generated for this purpose may be huge and/or expensive. We describe how rational interpolation can be useful in this respect. In ou