  Mass spectra of strange baryons are calculated in the framework of the
relativistic quark model based on the quasipotential approach. Baryons are
treated as the relativistic quark-diquark bound systems. It is assumed that two
quarks with equal constituent masses form a diquark. The diquark excitations
and its internal structure are consistently taken into account. Calculations
are performed up to rather high orbital and radial excitations of strange
baryons. On this basis the Regge trajectories are constructed. The obtained
results are compared with available experimental data and previous predictions.
It is found that all masses of the 4- and 3-star, as well as most of the 2- and
1-star states of strange baryons with established quantum numbers are well
reproduced. The developed relativistic quark-diquark model predicts less
excited states than three-quark models of strange baryons.
