关键词: 合成孔径雷达, 图像, 增强, 天线方向图, 雷达方程

Abstract: In order to reduce the influence of antenna direction map and range to SAR imaging, and to improve the visualization and explanation without antenna direction map, an enhancement algorithm for SAR images with intensity integral in azimuth to calculate factors was proposed. In this algorithm, the intensities in different ranges were integral along azimuth, and the enhancement factors in range were calculated with the integral data to enhance SAR images. It can reduce the influence of antenna direction map and range, and can get SAR images with consistent tone in range. Airborne SAR images were implied in experiments. The satisfying results were got, as validated the proposed algorithm.

Key words: Synthetic Aperture Radar, Image, Enhancement, Antenna direction map, Radar Equation