A fast SAR raw data simulation algorithm based on data correction using chirp scaling algorithm

In this paper, a fast SAR raw echo simulation algorithm based on data correction using chirp scaling algorithm is proposed. It simulates the new raw data thought correcting original raw data which has different range and velocity between radar and target. Firstly, it corrects the range and azimuth phase error between the original data and new data. Then, the range cell migration is modified using chirp scaling algorithm. Finally, the effect of the proposed method is analyzed.And the approach in this paper has a significant meaning for the investigation of SAR echo simulation.