Author:Kleynhans, W; Olivier JC; Wessels, Konrad J; Van Den Bergh F; Salmon BP; Steenkamp Karen CDate:15 Dec 2009It is proposed that the NDVI time-series derived from MODIS satellite data can be modelled as a triply (mean, phase and amplitude) modulated cosine function. Secondly, a non-linear Extended Kalman Filter is developed to estimate the parameters ...Read more
Author:Grobler, TL; Ackermann, ER; Olivier, JC; Van Zyl, AJ; Kleynhans, WDate:Jun 2012It is proposed that the time series extracted from moderate resolution imaging spectroradiometer satellite data be modeled as a simple harmonic oscillator with additive colored noise. The colored noise ismodeled with an Ornstein–Uhlenbeck ...Read more
Author:Swanepoel, Derick; Van den Bergh, FransDate:Mar 2017Earth observation data are typically compressed using general-purpose single-threaded compression algorithms that operate at a fraction of the bandwidth of modern storage and processing systems. We present evidence that recently developed ...Read more