Cognitive SAR based on waveform design and optimum

Different from traditional SAR system, the cognitive SAR proposed in this paper transmits various waveforms to the illuminated scene. The waveforms are designed offline based on the property of clutter and targets of interested. These waveforms are selected and optimized online by priori knowledge and the backscattered signal. The cognitive ability of SAR system can be gained by the matching illumination to the target and scene adaptively.