脉冲多普勒雷达
雷达
连续波雷达
计算机科学
干扰
雷达锁定
脉冲压缩
脉冲重复频率
雷达干扰与欺骗
雷达成像
电子工程
声学
物理
电信
工程类
热力学
作者
Heng Xu,Yinghui Quan,Xiaoyang Zhou,Hui Chen,Tie Jun Cui
出处
期刊:IEEE Transactions on Geoscience and Remote Sensing
[Institute of Electrical and Electronics Engineers]
日期:2023-01-01
卷期号:61: 1-14
被引量:3
标识
DOI:10.1109/tgrs.2023.3243411
摘要
Electromagnetic controlled surface (ECS) which can regulate the amplitude and phase of electromagnetic wave reflection characteristics has attracted extensive attention in recent years because of its radar stealth effect by reducing the radar cross Section (RCS). However, radar detection cannot be avoided only by stealth in the energy field gradually. It is a novel pulse Doppler radar jamming mode proposed in this article to use the self-correlation of radar-transmitted waveforms to result in signal processing and radar detection failure through the rapid time-domain variation of phase coding ECS. In principle, phase modulation alters the intrapulse characteristics of the original signal and fundamentally interferes with the processing of the radar signal. In this article, random and periodic phase coding sequences are proposed according to different forms of radar jamming. And through the derivation formula and simulation experiment, the jamming effect under multiphase modulation is verified. Among them, the target energy is dispersed to the surroundings to form a wide envelope through random coding modulation, which leads to noise barrage jamming. While we use periodic sequence coding modulation, the target is shifted in the range–Doppler domain, causing misplaced coherence on the radar echo and deceptive jamming to the radar. Moreover, the technology can also be widely used in synthetic aperture radar (SAR) imaging, microwave measurement, and other remote sensing fields. To further confirm the accuracy and efficiency of the proposed method, multiparameter contrast experiments and parameter sensitivity analyses are conducted.
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