Application of compressed sensing in spaceborne radar imaging

High resolution spaceborne SAR to obtain a wide range of application in recent years, but the real-time imaging algorithm encountered a huge computation challenge. CS(compressed sensing) theory is a novel data collection and coding theory under the condition that signal is sparse or compressible. This paper discusses the CS technology will be introduced to the spaceborne radar imaging algorithm, so the radar can obtain the raw echo data at low sampling, and then down to the ground, the use of CS imaging method to complete the real-time image processing.