Airborne synthetic aperture radar (SAR) image quality considerably degrades because of motion errors. High-precision motion compensation (moco) is necessary in an advanced SAR data processing scheme. In the case of ul...
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Airborne synthetic aperture radar (SAR) image quality considerably degrades because of motion errors. High-precision motion compensation (moco) is necessary in an advanced SAR data processing scheme. In the case of ultra-high resolution, the conventional two-step moco algorithm introduces significant range cell migration correction (RCMC) error which causes a loss to resolution. Another method named one-step moco can avoid RCMC error, improving image quality obviously. Meanwhile, one-step moco can well integrate with the standard Omega-K algorithm succinctly. A comparison of the two moco algorithms is demonstrated by analysing the RCMC error. Point targets simulation has validated the proposed research.
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