基于FRFT和平方变换的伪码引信回波判别  

Pseudo-random Code Fuze Echo Discrimination Based on FRFT and Square Transform

作　　者：陈劲宇 白志科 王玮 李沛轩 CHEN Jinyu;BAI Zhike;WANG Wei;LI Peixuan(The 705 Research Institute,China State Shipbuilding Corporation,Xi'an 710077,China)

机构地区：[1]中国船舶集团公司第七○五研究所,陕西西安710077

出　　处：《探测与控制学报》2023年第1期50-55,60,共7页Journal of Detection & Control

摘　　要：为了提高鱼雷电磁引信在复杂电磁环境下的抗干扰能力和目标判别能力,实现目标回波的可靠判别,分析了伪码调相鱼雷电磁引信信号及适用于鱼雷电磁引信的伪码序列参数选取原则,提出一种基于分数阶傅里叶变换(FRFT)和二次平方变换的伪码调相鱼雷电磁引信回波判别方法。仿真结果表明,该方法能有效区分干扰信号和目标回波信号,具备较好的抗干扰能力,可为伪码调相鱼雷电磁引信设计提供参考。In order to improve the anti-interference ability and target discrimination ability of torpedo electromagnetic fuzes in complex electromagnetic environments and realize the reliable discrimination of target echoes,this paper analyzed the pseudo-random code phase-modulated torpedo electromagnetic fuze signal and the pseudo-random code sequence parameter selection principle applicable to torpedo electromagnetic fuze,and proposed a pseudo-random code phase-modulated torpedo electromagnetic fuze echo discrimination method based on fractional order Fourier transform(FRFT)and quadratic square transformation.The simulation results showed that this method could effectively distinguish the interference signal from the target echo signal,and had good anti-interference ability,which could provide a reference for the design of electromagnetic fuzes of pseudo-random code phase-modulated torpedoes.

关 键 词：伪码调相 鱼雷 电磁引信 抗干扰 

分 类 号：TJ430[兵器科学与技术—火炮、自动武器与弹药工程]