【作者】 张冯哲； 何宗锐； 黄熠昕； 阙肖峰；

【Author】 Fengzhe Zhang;Zongrui He;Yixin Huang;Xiaofeng Que;University of Electronic Science and Technology of China;

【机构】 电子科技大学；

【摘要】 有源对消技术凭借其灵活可控、精度高等优点广泛应用于目标雷达散射截面的缩减,其本质是利用目标装载的有源设备发射电磁波,抵消目标散射回波,从而缩减雷达散射截面。本文针对传统有源对消技术依赖严格时间同步的工程瓶颈,基于信号转发原理,设计一种频域干涉的RCS主动缩减装置。装置工作范围在0.3～2 GHz,链路增益范围30～90 dB,步进1 dB,调相范围0～360°,步进5.625°,并在紧缩场暗室以金属标准球为目标进行主动对消测试,在来波方位角-10°～10°范围内平均RCS缩减效果大于12 dB,且在各角度上RCS缩减量均大于10 dB。更多还原

【Abstract】 Active cancellation technology is widely used for reducing the radar cross section of targets due to its advantages of flexibility,controllability,and high accuracy.Its essence is to use the active equipment loaded on the target to emit electromagnetic waves,cancel out the target’s scattered echoes,and thus reduce the radar cross section.This article aims to address the engineering bottleneck of traditional active cancellation technology that relies on strict time synchronization.Based on the principle of signal forwarding,a frequency-domain interferometric RCS active reduction device is designed.The working range of the device is 0.3～2 GHz,with a link gain range of 30～90 dB,a step size of 1 dB,a phase modulation range of 0～360°,and a step size of 5.625°.Active cancellation tests were conducted in a compact darkroom with a metal standard sphere as the target.The average RCS reduction effect was greater than 12 dB in the range of-10°～10° incoming azimuth,and the RCS reduction was greater than10 dB at all angles.更多还原