A third-order range separation imaging algorithm for manoeuvring platform SAR

KT and azimuth sub‐region deramp‐based high‐squint SAR imaging algorithm mounted on manoeuvring platforms

“…Wavenumber‐domain imaging algorithms [6–8] are usually tricky to deal with spatial‐variant imaging parameters and interpolation operation reduces the efficiency of the algorithm. Compared to time‐domain and wavenumber‐domain imaging algorithms, frequency‐domain imaging algorithms have higher operational efficiency and are more conducive to real‐time imaging [9–12].…”