A space platform complex is considered. Its pivotal elements are a three-li
nk manipulator with rotating joints and a stabilized platform with three ax
es. The mathematical model of this complex is presented. When used for simu
lation, this model makes it possible to take into account not only the dyna
mics of the manipulator and the platform, but also the nonlinearities of dr
ives, the finiteness of the word length of digital-to-analog and analog-to-
digital converters (digital sensors), as well as other factors.