Ji Penghui, Dai Dahai, Xing Shiqi, Pang Bo
State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, National University of Defense Technology, Changsha 410073, China.
Sensors (Basel). 2020 Feb 15;20(4):1053. doi: 10.3390/s20041053.
The interferometry synthetic aperture radar (InSAR) deceptive jamming method utilizing two synergetic transponders can generate a false three-dimension (3D) scene in a single baseline InSAR image. However, such deceptive capability could be reduced by the multibaseline InSAR system. To obtain effective deception on multibaseline InSAR, a novel deceptive scene generation method jointly employing multiple transponders is proposed. It only demands that each transponder is modulated with a complex coefficient when generating a false point. The complex modulation coefficient can be offline calculated according to the deceptive point coordinate by solving a matrix. Besides, the complex modulation coefficient can be combined with the deceptive scene template, and thus a large 3D deceptive scene is able to be created quickly in the multibaseline InSAR image by using the fast two-dimension (2D) SAR deceptive scene generation algorithm. As long as the number of transponders is not less than the number of antennas of the multibaseline InSAR system, this proposed method is effective. The effectiveness of the proposed method is validated by computer simulations.
利用两个协同转发器的干涉合成孔径雷达（InSAR）欺骗干扰方法可以在单基线InSAR图像中生成虚假三维（3D）场景。然而，这种欺骗能力可能会被多基线InSAR系统削弱。为了在多基线InSAR上获得有效的欺骗效果，提出了一种联合使用多个转发器的新型欺骗场景生成方法。在生成虚假点时，只要求每个转发器用一个复系数进行调制。复调制系数可以通过求解矩阵根据欺骗点坐标离线计算得到。此外，复调制系数可以与欺骗场景模板相结合，从而利用快速二维（2D）SAR欺骗场景生成算法在多基线InSAR图像中快速创建一个大的3D欺骗场景。只要转发器的数量不少于多基线InSAR系统的天线数量，该方法就是有效的。通过计算机仿真验证了该方法的有效性。
