User profiles for J. van Zyl

Jakobus Ernst (Kobus) van Zyl - Verified email at auckland.ac.nz - Cited by 3679
Jean-Pierre van Zyl - Verified email at sun.ac.za - Cited by 35

Imaging radar polarimetry: A review

HA Zebker, JJ Van Zyl - Proceedings of the IEEE, 1991 - ieeexplore.ieee.org
Presents a tutorial review of the broad sweep of topics relating to imaging radar polarimetry,
ranging from mathematical foundations to hardware and from implementation approaches to …

[BOOK][B] Synthetic aperture radar polarimetry

JJ Van Zyl - 2011 - books.google.com
This book describes the application of polarimetric synthetic aperture radar to earth remote
sensing based on research at the NASA Jet Propulsion Laboratory (JPL). This book …

Unsupervised classification of scattering behavior using radar polarimetry data

JJ Van Zyl - IEEE Transactions on Geoscience and Remote …, 1989 - ieeexplore.ieee.org
… is referred to a review by Guili [2] or to a paper by van Zyl et al. [3]. The prime purpose of this
paper is … J. van Zyl, “On the importance of polarization in radar scattering problems,” Ph. D. …

Treated wastewater reuse in South Africa: Overview, potential and challenges

JR Adewumi, AA Ilemobade, JE Van Zyl - Resources, Conservation and …, 2010 - Elsevier
Many communities in South Africa struggle to access reliable and adequate quantities of
potable water for diverse water requirements. This is against the backdrop of decreasing …

Imaging radar polarization signatures: Theory and observation

JJ Van Zyl, HA Zebker, C Elachi - Radio science, 1987 - ieeexplore.ieee.org
We have converted a conventional synthetic aperture radar system into an imaging radar
polarimeter by employing two orthogonally polarized antennas and recording both the …

The Shuttle Radar Topography Mission (SRTM): a breakthrough in remote sensing of topography

JJ Van Zyl - Acta astronautica, 2001 - Elsevier
The Shuttle Radar Topography Mission (SRTM), flown on the Space Shuttle Endeavour on
Flight STS-99 and launched on 11 February 2000, will produce digital elevation data of the …

Calibration of polarimetric radar images using only image parameters and trihedral corner reflector responses

JJ Van Zyl - IEEE Transactions on Geoscience and Remote …, 1990 - ieeexplore.ieee.org
A technique that uses the radar return from natural targets and at least one trihedral corner
reflector to calibrate compressed polarimetric radar data is described. Calibration for relative …

The soil moisture active passive (SMAP) mission

…, SW Thurman, L Tsang, J Van Zyl - Proceedings of the …, 2010 - ieeexplore.ieee.org
Van de Griend, and J. Eagleman, BSkylab L-band microwave radiometer observations of
soil … Dubois, J. Van Zyl, and E. Engman, BMeasuring soil moisture with imaging radars,[ IEEE …

Set-based particle swarm optimisation: a review

JP van Zyl, AP Engelbrecht - Mathematics, 2023 - mdpi.com
Van Zyl and Engelbrecht applied SBPSO as part of a hybrid algorithm which approximates
… Although polynomial approximation is defined as a MOOP, Van Zyl and Engelbrecht …

Sperm morphologic features as a prognostic factor in in vitro fertilization

…, CJ Lombard, JP Van der Merwe, JA van Zyl… - Fertility and sterility, 1986 - Elsevier
… The semen analysis methods used in our laboratory were described in detail by Van Zyl.6,
7 The methods used for determination of the three variables used in this study are, in short, as …