Processing method for the received signal of a synthetic aperture radar of the DERAMP type

摘要

The technique has digital returns from an illuminated zone. A first stage of processing (63) removes digital words outside a useful time and replaces them with zero. The digital reception table is then fast-Fourier transformed (65) and rearranged (67) as distance cases. The signals are then separated in distance bands (68), and filtered, and a ground image constructed using the complex reflection coefficients.