欺骗干扰能够在SAR中产生逼真的虚假目标。为了提高干扰的隐蔽性与威力，干扰机需要进行精细调制与广域覆盖，导致运算量剧增，系统复杂，引发高成本、低效率等问题。为此，本项目基于1-bit采样量化理论对SAR的快速极简欺骗干扰方法展开研究。首先探讨SAR信号的1-bit截获方法，解决干扰调制中数据位宽高、数据量大的问题根源。然后剖析虚假目标聚焦的深层机理，利用延时与相位异精度的调制模板生成策略降低运算复杂度。并设计基于逻辑运算的1-bit极简干扰调制方法，达到降低成本、提高效率的目的。进而针对不同散射特性的目标，采用不同的时变阈值来补偿1-bit转发中的非线性失真。最后，探索1-bit欺骗干扰“截获-调制-转发”各阶段误差传递与积累特性，提出有效的误差反馈调节方法，为干扰机的参数设计提供依据。本项目以期以微小的精度损失获取显著的系统简化与干扰效率提升，为SAR欺骗干扰机的低成本与小型化提供支撑。

Deceptive jamming can generate false targets with high fidelity in a SAR imagery. To improve the elusiveness and power of the jamming, elaborate modulation and wide-area coverage are required by a deceptive jammer, resulting in leaping operand and complex system, which cause high cost and low efficiency. For these reasons, this project studies a rapid and highly simplified deceptive jamming method against SAR based on 1-bit sampling and quantization theory. Firstly, a 1-bit interception method for the SAR signal is discussed to solve the roots causing problems such as high data-width and large data amount in the jamming modulation. Then, by dissecting the focusing mechanism of the false targets, a modulation template generation strategy is addressed using different accuracy for time delay and phase to reduce the computational complexity. Moreover, a highly simplified 1-bit deceptive jamming modulation method is designed employing logical operations, which accomplishes low cost and high efficiency. Furthermore, different time-varying thresholds are utilized to compensate the nonlinear distortion in the 1-bit retransmission for false targets with different scattering characteristics. Finally, the error transfer and accumulation features during the “interception-modulation-retransmission” stages in the 1-bit deceptive jamming are revealed, and an effective error feedback regulation is provided as a basis for the jammer’s parameters design. This project is aiming for achieving significant system simplification and efficiency improvement at the cost of a slight accuracy loss, which is able to provide support to low cost and miniaturization for the SAR deceptive jammer.