Role of the filter phase in phase sampling interferometry

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. Howev...

Descripción completa

Detalles Bibliográficos
Autores: Quiroga Mellado, Juan Antonio, Servín Guirado, Manuel, Estrada, Julio César, Vargas Balbuena, Javier, Torre Belizón, Francisco Javier de la
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/43909
Acceso en línea:https://hdl.handle.net/20.500.14352/43909
Access Level:acceso abierto
Palabra clave:535
Optics
Óptica (Física)
2209.19 Óptica Física
Descripción
Sumario: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.