Antenna pattern correction method for squint SAR mode

In SAR images, the radar antenna pattern has a significant impact on the energy intensity of the target. Therefore, it is essential to correct for this influence during processing in order to eliminate any fluctuation gain changes caused by it. With evolving application requirements, new SAR systems often operate in squint mode, rendering the current antenna pattern correction method developed for broadside looking mode unsuitable. This paper proposes a novel correction method for SAR antenna patterns that effectively enhances the accuracy of pattern correction in squint mode. The effectiveness of the proposed method is validated through a SAR simulation experiment.