| 频控阵雷达多路相参信号源的设计与实现 |
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| 引用本文： | 王子樵,徐湛,陈晋辉,职如昕.频控阵雷达多路相参信号源的设计与实现[J].电子测量技术,2020(3):11-16. |
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| 作者姓名： | 王子樵 徐湛 陈晋辉 职如昕 |
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| 作者单位： | 北京信息科技大学信息与通信工程学院;北京信息科技大学现代测控技术教育部重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目(61620106001);北京市优秀人才资助计划青年拔尖项目(2016000026833ZK08);北京市属高校高水平教师队伍建设支持计划“青年拔尖人才培养计划”(CIT&TCD201704065);北京信息科技大学学科建设类项目(5121911006)资助。 |
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| 摘 要： | 针对频控阵雷达高相参精度、低复杂度、小型化的设计需求,提出了一种基于FPGA和射频捷变收发器的多路相参信号源设计方案。利用多片射频捷变收发器产生8路基带同步信号,采用将一路发射信号回接到各接收通路的一发多收自校准方式,并运用基于1 bit量化检测校正相位模糊的方法,对多路信号的相位进行检测和调整,实现多路射频信号的无相位模糊相参发射。该信号源设计方案实现复杂度低,占用资源少,可输出多路500 MHz^6 GHz相参的LFM射频信号。
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| 关 键 词： | 频控阵雷达 相参信号 FPGA 信号源 1 bit量化 |
Design of multi-channel and phase-coherence signal generator for frequency diverse array |
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| Wang Ziqiao,Xu Zhan,Chen Jinhui,Zhi Ruxin.Design of multi-channel and phase-coherence signal generator for frequency diverse array[J].Electronic Measurement Technology,2020(3):11-16. |
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| Authors: | Wang Ziqiao Xu Zhan Chen Jinhui Zhi Ruxin |
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| Affiliation: | (School of Information and Communication Engineering,Beijing Information Science&Technology University,Beijing 100192,China;Key Lab of Modern Means&Ctr Tech,M.of EDU,Beijing Information Science&Technology University,Beijing 100192,China) |
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| Abstract: | Based on the requirements of frequency-controlled array radar for high-precision phase-coherent,lower complexity and miniaturization,a multi-channel coherent signal source design scheme based on FPGA is proposed.RF agile transceiver chips generate eight synchronized baseband signals.Returning one transmit signal to each rest of receiving path,the method of 1 bit quantization detection and correction of phase ambiguity is proposed and using to detect and adjust phase of multi-path signals coherence,and then synchronize RF signals,to realize transmit multi-channel signal without phase ambiguity.The design realizes that the multi-path signal has low correlation and low resource consumption,and the constructed signal source can realize the output of multi-channel 500 MHz^6 GHz coherent LFM radio frequency signals. |
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| Keywords: | FDA phase-coherence FPGA Signal Generator 1 bit quantification |
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