Abstract: The problem of concern here is instantaneous frequency rate (IFR) estimation of multicomponent two-dimensional (2-D) chirp signals. First, the 2-D cubic phase function (CPF) is defined.

Add Yahoo as a preferred source to see more of our stories on Google. North Carolina Republican state Rep. Allen Chesser said he was taken by surprise when a Democratic sheriff who has long opposed ...

Anti-ICE sheriff STUMPED by 'fifth-grade civics' question North Carolina Republican state Rep. Allen Chesser was visibly shocked after Mecklenburg County Sheriff Garry McFadden could not answer a ...