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| 一种新的伪码-线性调频复合信号侦察性能分析 | |
| 引用本文： | 沈伟,贾新海,赵拥军,朱建东.一种新的伪码-线性调频复合信号侦察性能分析[J].电子信息对抗技术,2012,27(1):1-6. |
| 作者姓名： | 沈伟 贾新海 赵拥军 朱建东 |
| 作者单位： | 1. 解放军信息工程大学,郑州450002／解放军95870部队,新疆五家渠831300 2. 解放军95870部队,新疆五家渠,831300 3. 解放军信息工程大学,郑州,450002 |
| 摘 要： | 针对雷达在现代电子战中所采用的线性调频（LFM）信号形式简单,易被敌方侦察接收机截获,而伪码调相信号对多普勒频移较敏感等问题,提出一种脉间伪码调相脉内线性调频的新的复合调制信号。分析了该信号的复合形式、频域特性,推导了复合信号的模糊函数表达式,最后分析了其距离、速度分辨率、模糊函数特性以及低截获性能。仿真结果表明,该新信号具有图钉型模糊函数和良好的距离及速度分辨率。在高分辨力,抗干扰、低截获方面都显示出独特的优势。 |
| 关 键 词： | 低截获概率 线性调频 GOLD码调相 模糊函数 |
The Reconnaissance Performance Analysis of A New Radar Signal Combined PRBC and LFM |
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| Authors: | SHEN Wei JIA Xin-hai ZHAO Yong-jun ZHU Jian-dong |
| Affiliation: | 1.Information Engineering University of PLA,Zhengzhou 450002,China;2.Unit 95870 of PLA,Xinjiang 831300,China) |
| Abstract: | For the problem that the radar signal using linear frequency modulation（LFM） can be easily intercepted by electronic reconnaissance equipment and phase code modulation is sensitive to doppler shift in modern electronic war,a compound modulation LPI radar signal composed of LFM and GOLD phase coded signal is proposed.By the theoretical analysis and computer simulation,it shows that the compound modulation LPI radar signal has a ＇thumbtack＇ ambiguity graph and a better performance for the distance resolution and velocity resolution,and has unique advantage at high resolution,anti-interference performance and LPI performance. |
| Keywords: | low probability of intercept（LPI） linear frequency modulation（LFM） GOLD code phase modulation ambiguity function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
