CAJ | 학술논문

目前对线性调频(LFM)脉冲压缩雷达转发欺骗干扰主要通过移频调制转发和采样直接转发实现，常规转发干扰样式简单，干扰信号规律性强、复杂度低。该文提出一种基于间歇采样的多载波调制转发新型干扰样式。首先引用码片的概念对间歇采样过程重新建模，在此基础上，通过对当前采样码片附加不同移频量，结合多载波并行调制体制对其进行串并转换，利用不同次转发信号各子载波间的干扰累积，实现对LFM脉冲压缩雷达的数量、幅度、空间分布可控的逼真假目标干扰。仿真表明该干扰样式比移频干扰和直接转发干扰具有更好的干扰效果。
목전대선성조빈(LFM)맥충압축뢰체전발기편간우주요통과이빈조제전발화채양직접전발실현，상규전발간우양식간단，간우신호규률성강、복잡도저。해문제출일충기우간헐채양적다재파조제전발신형간우양식。수선인용마편적개념대간헐채양과정중신건모，재차기출상，통과대당전채양마편부가불동이빈량，결합다재파병행조제체제대기진행천병전환，이용불동차전발신호각자재파간적간우루적，실현대LFM맥충압축뢰체적수량、폭도、공간분포가공적핍진가목표간우。방진표명해간우양식비이빈간우화직접전발간우구유경호적간우효과。
Repeater deception jamming against Linear Frequency Modulated (LFM) pulse-compression radar is realized by frequency-shift repeater and direct repeater jamming so far. Conventional repeater jamming type is simple. Regularity of jamming signal is strong and complexity is low. A new repeater jamming type with multi-carrier modulation based on intermittent sampling is proposed. Firstly, the model of intermittent sampling is rebuilt with the code chip concept. Based on this, lifelike false targets with the quantity, amplitude and space distribution which can be controlled are produced by attaching different frequency-shift component to the present sampling code chip, deserializing signal used multi-carrier parallel modulation system and utilizing the accumulation of different times repeater signal jamming effect among sub-carriers. The simulation results show that the new jamming type has better performance than frequency-shift jamming and direct repeater jamming.