Abstract:

The impact of frequency source noise on bistatic synthetic aperture radar (SAR) is presented.Two independent oscillator phase noises will be superimposed directly in bistatic SAR, which may cause a timevariant shift, spurious sidelobes, as well as a defocusing of image.Quantitative estimates are derived analytically and requirement for coherent accumulated time is deduced based on the secondorder statistics characteristic of oscillator phase noise.The research results consummate the bistatic SAR imaging theory system and provide theory basis for the system design.