| 摘要: |
| 干扰通信一体化设备整合了电子干扰和通信功能，能显著提高作战效能，是综合一体化电子系统的一个重要研究方向。针对单线性调频（LFM）信号携带通信数据导致通信速率较低的问题，提出一种基于调频斜率失配干扰的干扰通信一体化信号设计方法，该一体化信号由多种同调频斜率不同载频的LFM信号组成，LFM信号的调频斜率和载频由通信信息从相应序列映射决定，脉间LFM信号的特征参数由于通信信息的不同表现出随机性，可在不影响雷达干扰效果的前提下，实现通信速率的提升。在通信接收端，通过去斜处理和快速傅里叶变换（FFT）判断每个频点是否过门限，解析过门限的频点得到通信信息。仿真结果表明，该信号能够产生压制式干扰效果和进行高速率通信数据传输。 |
| 关键词: 干扰通信一体化 调频斜率失配干扰 去斜处理 自适应门限 |
| DOI：DOI:10.3969/j.issn.1672-2337.2023.06.011 |
| 分类号:TN97 |
| 基金项目:电子信息控制重点实验室开放基金资助 |
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| Study on the Integration of FM Slope Mismatch Jamming and Communication |
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XUE Chengjun， TANG Jianlong， LI Hao， CAO Xuyuan
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1. School of Electronic Engineering, Xidian University, Xi’an 710071, China;2. Science and Technology on Electronic Information Control Laboratory, Chengdu 610036, China
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| Abstract: |
| The integration equipment of jamming and communication, which can significantly improve combat effectiveness，is an important research direction of integrated electronic systems. Aiming at the problem of low communication rate of single LFM signal carrying communication data, the paper proposes an integrated signal design method for jamming and communication based on FM slope mismatch jamming. The integrated signal consists of multiple LFM signals with the same FM slope and different carrier frequencies. The FM slope and carrier frequency of the LFM signal are determined by the mapping of the communication information from the corresponding sequence, and the characteristic parameters of the inter?pulse LFM signal exhibit randomness due to the different communication information, which can improve the communication rate without affecting the radar jamming effect. At the communication receiver, whether each frequency point is over the threshold is judged by de?chirp processing and FFT, and the frequency point over the threshold is resolved to get the communication information. The simulation results verify that the signal can produce suppressed jamming effect and realize high speed communication information transmission. |
| Key words: jamming and communication integration FM slope mismatch jamming de⁃chirp processing adaptive threshold |
