Thistextbookwaswrittenwiththegoalofprovidingamoderntreatmentofsignalsandsystemsattheundergraduatelevel.Itcoversbothcontinuous-timeanddiscrete-timesignalsandsystems,andcanbeusedasthemaintextbookforaone-semesterintroductorycourseinsignalsandsystemsorforatwo-semestercoursesequence.It