“…Compared with the existing results, the basic ideas of our design method were not utilized in Gershon and Shaked (2014), Kojima (2014), Moelja and Meinsma (2006), Tamaddoni et al (2011), Takaba (2003), Wang et al (2014), Zhang et al (2013), and the preview control problems of time-invariant systems were studied without considering the robustness (Cao and Liao, 2015; Li and Liao, 2015; Salton et al, 2016; Zhang et al, 2015; Zhao et al, 2016). Moreover, the difference methods in Birla and Swarup (2014), Cheng et al (2014), Liao et al (2003), Li and Liao (2017), Oya et al (2007), Ryu et al (2008), Takaba (2000), Zhu et al (2015) cannot be extended to this paper because the uncertain matrices are time-varying and unknown.…”