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该文展示了世界上几个重要的先进混合双基SAR实验。混合双基模式是指发射端和接收端分别装载于不同类型的平台,例如星载/机载,机载/静止平台,星载/静止平台等。近年来相继有若干混合双基SAR实验成功完成,主要包括TerraSAR-X/PAMIR,PAMIR/静止平台,以及TerraSAR-X/静止平台。此外,在TerraSAR-X/静止平台的双基模式下还验证了多基线干涉SAR(MB-InSAR)和数字波束形成(DBF)技术。值得强调的是,该文所展示的DBF实验结果属于世界上首次成功的基于在轨雷达卫星的DBF实验。
This article presents several important advanced mixed bistatic SAR experiments in the world. Mixed bistatic mode means that the transmitter and receiver are respectively loaded on different types of platforms, such as onboard / airborne, airborne / stationary platforms, and spaceborne / stationary platforms. In recent years, several hybrid bistatic SAR experiments have been successfully completed, including TerraSAR-X / PAMIR, PAMIR / static platform, and TerraSAR-X / static platform. In addition, Multi-baseline Interferometric SAR (MB-InSAR) and Digital Beamforming (DBF) techniques were also validated in the TerraSAR-X / Static Platform’s bistatic mode. It is worth emphasizing that the DBF experiment presented in this article belongs to the first successful DBF experiment in orbiting radar satellites in the world.