Froehly, A.A.FroehlyHerschel, R.R.Herschel2022-03-142022-03-142021https://publica.fraunhofer.de/handle/publica/41178310.23919/EuCAP51087.2021.9411486SAR radar imaging methods are presented, which are able to treat highly refractive fibre composite materials. The methods are based on a previous surface extraction and a subsequent refraction compensation relying on the calculation of a corresponding correction factor. Due to an efficient implementation we achieve a computational effort comparable to the standard back-projection algorithm. We demonstrate the method with examples from simulation and fibre composite materials.en621conference paper