| 宽带、多体制兼容引信仿真平台载波提取 |
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| 引用本文： | 刘岩,雷向阳.宽带、多体制兼容引信仿真平台载波提取[J].现代防御技术,2012,40(4):150-154,161. |
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| 作者姓名： | 刘岩 雷向阳 |
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| 作者单位： | 1. 北京遥感设备研究所,北京,100854
2. 北京电子工程总体研究所,北京,100854 |
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| 摘 要： | 针对不同引信发射信号载波频率分布范围大,且各引信体制、载波频率、调制脉冲宽度、脉冲重复周期及伪码调制周期不同等特点,对通用化引信复杂调制信号相干载波提取技术进行了研究,提出了一种宽带、多体制兼容引信相干载波提取方法。该方法采用高速鉴频、大范围自动锁频环及特殊的同相-正交锁相环相结合,可快速精确锁定引信的工作频率,实现相干载波提取及稳定跟踪。系统调试表明,采用该方法可满足系统要求。
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| 关 键 词： | 窄脉冲调制 伪码调相 频率跟踪 锁相 载波提取 |
Carrier Synchronization from Wideband and Multi-System Compatible Fuse Simulator |
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| LIU Yan
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LEI Xiang-yang.Carrier Synchronization from Wideband and Multi-System Compatible Fuse Simulator[J].Modern Defence Technology,2012,40(4):150-154,161. |
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| Authors: | LIU Yan LEI Xiang-yang |
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| Institution: | 1.Beijing Institute of Remote Sensing Equipment,Beijing 100854,China; 2.Beijing Institute of Electronic System Engineering,Beijing 100854,China) |
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| Abstract: | In view of the fact that different fuses have large distribution of carrier frequency,and that fuse system,carrier frequency,modulation pulse width and pulse repetition period are also different for fuses of different types,a method on coherent carrier synchronization suiting wideband and multi-system compatible fuse simulator is proposed.This method is combined with high speed analog frequency discriminator,wide-range automatic frequency-locked loop and costas loop.It can accurately lock fuse work frequency to achieve coherent carrier synchronization.The system test shows that it can satisfy requirements. |
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| Keywords: | narrow pulse modulation pseudorandom code phase modulation frequency tracking phase-locked carrier synchronization |
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