New inequalities for signal spreads in linear canonical transform domains

Recently many uncertainty principles involving the product of signal spreads in two linear canonical transform (LCT) and fractional Fourier transform (FRFT) domains have been presented in the literature. In this paper we derive some new equalities/inequalities involving the sum and product of signal spreads in two FRFT domains. Some equalities involving the sum of signal spreads in two LCT domains are also presented.