Abstract
Azimuth multi-channel technology has been widely used in high-resolution wide-swath synthetic aperture radar (SAR). However, for airborne multi-channel SAR, motion error decreases image quality seriously, including resolution loss and false target appearance. In this paper, a multi-channel SAR imaging method is proposed combined with improved two-step motion compensation. First, multi-channel SAR motion error geometric model is established and the range-invariant channel-dependent phase error is derived. After that the range-dependent phase error for different channels is analyzed in detail. Then, the multi-channel imaging method with motion compensation is addressed. Finally, airborne SAR data is used to validate the proposed method. Processing results show that the proposed method can correct motion error and improve image quality effectively.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
