title: Role of the filter phase in phase sampling interferometry.
abstract: Any linear phase sampling algorithm can be described as a linear filter characterized by its frequency response. In traditional phase sampling interferometry the phase of the frequency response has been ignored because the impulse responses can be made real selecting the correct sample offset. However least squares methods and recursive filters can have a complex frequency response. In this paper, we derive the quadrature equations for a general phase sampling algorithm and describe the role of the filter phase.
authors: Optics Department, Universidad Complutense de Madrid, Facultad de CC Físicas, Ciudad Universitaria s/n Madrid 28040, Spain. aq@fis.ucm.es
authors: Juan Antonio
authors: JA
authors: Quiroga
authors: Manuel
authors: M
authors: Servín
authors: Julio Cesar
authors: JC
authors: Estrada
authors: Javier
authors: J
authors: Vargas
authors: Francisco Javier
authors: FJ
authors: Torre-Belizon
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D007368:Interferometry / Q000379:methods*; D016018:Least-Squares Analysis; D015233:Models, Statistical; D008962:Models, Theoretical; D055095:Optics and Photonics / Q000379:methods*; D012984:Software