Estimating frequencies of interferometer type data with decimated auto-regressive techniques

A method of analysis will be presented to estimate many sinusoids in large data sets. The method relies on using disjoint subsets of the original data set. A subset is formed by taking values of the original data at a sample rate, D, and these subsets cover the original data set. This D is called the "decimation" rate and the approach is called the "decimation method". The method was applied to interferometer data.