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2023, Volume 24, Issue 3

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Frontiers of Information Technology & Electronic Engineering >> 2023, Volume 24, Issue 3 doi: 10.1631/FITEE.2200298

Stepped frequency chirp signal imaging radar jamming using two-dimensional nonperiodic phase modulation

国防科技大学电子信息系统复杂电磁环境效应国家重点实验室，中国长沙市，410073

Received: 2022-07-11 Accepted: 2023-03-25 Available online: 2023-03-25
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Abstract

obtains high-resolution radar images by synthesizing multiple narrowband chirp pulses. It has been one of the most commonly used waveforms due to its lower demand for radar instant bandwidth. In this paper, we propose a method using two-dimensional against imaging radar. Using the unique property of , the proposed method can generate high-level sidelobes that perform as a special blanket jamming along both the range and azimuth directions and make the target unrecognizable. Then, the influence of different modulation parameters, such as the code width and duty ratio, are further discussed. Based on this, the corresponding parameter design principles are presented. Finally, the validity of the proposed method is demonstrated by the Yake-42 plane data simulation and measured unmanned aerial vehicle data experiment.

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