Simulation of a Wideband Radar Echo of a Target on a Dynamic Sea Surface

Unlike a generally rough ground surface, the sea surface varies over time. To analyze impact of motion waves on synthetic aperture radar (SAR) image target, wideband echo simulation method based frequency domain is used. For echo, electromagnetic (EM) scattering properties main components are analyzed by method. Based EM properties, can be accurately simulated using inverse fast Fourier transformation (IFFT). Combined with flight path radar, each pulse to obtain SAR image. The correct evaluation indispensable acquisition an accurate complex targets, such as ships, multiple effects have significant influence properties. Thus, rectangular wave beam-based geometrical optics and physical (GO/PO) introduced calculate which more efficient than traditional GO/PO. GO/PO suitable simulate images in need calculated. With these methods, target simulated. comparison between static dynamic it found that region corresponding blurred texture blurrier. recognition also were generated under different conditions. Some strong points appear when considered. It images, changes