POSITIONING APPARATUS AND SIGNAL PROCESSING METHOD THEREOF

摘要

A signal processing method of a positioning apparatus includes receiving a wireless satellite signal to generate distance information; generating a distance correction quantity according to the distance information and reference coordinate information; processing the distance correction quantity through iteration by using an Empirical Mode Decomposition (EMD) method, to generate multiple mode functions; and analyzing the mode functions, so as to select a part of the mode functions as a modified distance correction quantity to be output.