Patil, A.Langoju, R.Rastogi, P.2007-07-252007-07-252007-07-25200610.1016/j.optcom.2006.01.048https://infoscience.epfl.ch/handle/20.500.14299/9874WOS:0002389879000258998A state space approach in phase shifting interferometrytext::journal::journal article::research article