Echo reconstruction method based on pulse coding and spaceborne radar system

The invention discloses an echo reconstruction method based on pulse coding and a spaceborne radar system design scheme. The method comprises the following steps: acquiring initial echo data; coding information in the initial echo data is extracted, and an observation matrix is generated according to the coding information; reconstructing the initial echo data according to the observation matrix to generate final echo data; and resolving ephemeris parameters of the final echo data, and generating a target image corresponding to the initial echo data based on the final echo data. Compared with the prior art, the method has the advantages that the corresponding echo reconstruction matrix and imaging can be adaptively generated in a hardware system on the spaceborne radar system according to the echo data, and the echo data can be directly subjected to in-orbit processing on the spaceborne radar system, so that the pressure of satellite-ground data transmission is reduced, the utilization rate of effective loads