改变重复周期的科斯塔斯编码频率捷变引信  

Varying Period Costas Coding Frequency Agile Fuze

作　　者：崔鹏飞 戴黎红[2] 刘芒龙[2] 张玉波[2] 

机构地区：[1]机电动态控制重点实验室,陕西西安710065 [2]西安机电信息技术研究所,陕西西安710065

出　　处：《探测与控制学报》2013年第5期22-25,共4页Journal of Detection & Control

摘　　要：常规的捷变频引信研究多集中在伪随机编码领域,伪随机码的不足之处在于旁瓣较高,容易出现测速和测距的模糊。针对其缺点,提出改变重复周期的Costas编码的频率捷变引信方案。该方案在原伪随机码捷变频引信结构的基础上,用Costas调制电压发生器代替了伪随机码调制电压发生器,并合理改变Costas编码的重复周期,使得其模糊图在给定距离上出现峰尖,并且能尽量压缩其他距离处旁瓣能量。仿真计算表明,此编码方式可以改善伪随机码带来的测距模糊,并且可以满足给定距离上的定距需要。The traditional study of frequency agile fuze focus on fields of pseudo random coding, which have dis- advantages of high side lobes , fuzzy of range and speed measure. To overcome these disadvantages, a solution of frequency agile fuze based on Costas coding with regular changing period was proposed. This solution used Cos- tas modulation voltage generator instead of pseudo random modulation voltage generator on the original structure of pseudo random coding frequency agile fuze, and changed the period of Costas coding reasonably, to make its fuzzy graph present a spike pulse at a specified distance, which also reduced the energy of side lobes. Simulation and calculation showed that, this coding method could reduce the range ambiguity of pseudo random coding and met the demand of ranging in a specified distance.

关 键 词：COSTAS编码 频率捷变 引信 

分 类 号：TJ439[兵器科学与技术—火炮、自动武器与弹药工程]