1. An interferometer for estimating at least one interferometric parameter of one or more signals from a source, the interferometer comprising: at least one phase detector configured to determine a plurality of phase measurements of the one or more source signals; a combined estimator configured to estimate at least one sought parameter representing the at least one interferometric parameter, and at least one noise parameter associated with the plurality of phase measurements, by processing the plurality of phase measurements received from the at least one phase detector; and a postprocessor configured to process estimates of the at least one sought parameter based on the at least one noise parameter received from the combined estimator to improve an estimate of the at least one interferometric parameter.