The concept of polarisation synthesis is based on the mathematical fact that a set of polarimetric measurements in one basis, e.g. H,V, can be converted into any other polarimetric basis, by a mathematical transformation. A basis set is a set of four polarisations. Each set is orthogonal, like LC (left-circular), RC (right-circular). The striking point is that only one set of polarimetric measurements in one basis needs to be recorded and the transformation in other polarimetric bases is done in a post processing step afterwards. There is no need to measure all bases, which is quite complicated in terms of engineering for elliptical and circular polarisation states.
Explain the concept of polarisation synthesis
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