| 用迭代方法精确实现FMCW信号的线性调频 |
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| 引用本文： | 汪学刚,向敬成,冯建雄,袁湘辉. 用迭代方法精确实现FMCW信号的线性调频[J]. 系统工程与电子技术, 1997, 0(7) |
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| 作者姓名： | 汪学刚 向敬成 冯建雄 袁湘辉 |
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| 作者单位： | 电子科技大学电子工程学院!成都610054 |
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| 基金项目： | 国家教委博士点基金资助课题 |
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| 摘 要： | 本文从理论上提出了一种线性调频连续波(FMCW)信号调频线性度校正的迭代算法,该算法可精确地实现线性调频,利用迭代过程中的频率误差函数可进行线性度测量.基于此,研制了FMCW信号线性度校正与测量系统,对3mm波VCO的实验结果表明,校正后的最大瞬时线性度优于0.016%,均方根线性度优于0.007%.
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| 关 键 词： | 线性调频 连续波雷达 ~ 迭代算法 |
An Iterative Algorithm of Sweep Linearity Correction for FMCW Signals |
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| Wang Xuegang,Xiang Jingcheng,Feng Jianxiong and Yuan Xianghui Dept. of Electronic Engineering,UEST of China,Chengdu. An Iterative Algorithm of Sweep Linearity Correction for FMCW Signals[J]. System Engineering and Electronics, 1997, 0(7) |
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| Authors: | Wang Xuegang Xiang Jingcheng Feng Jianxiong Yuan Xianghui Dept. of Electronic Engineering UEST of China Chengdu |
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| Affiliation: | Wang Xuegang,Xiang Jingcheng,Feng Jianxiong and Yuan Xianghui Dept. of Electronic Engineering,UEST of China,Chengdu 610054 |
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| Abstract: | An iterative algorithm of sweep linearity correction for FMCW signals is presented in this paper. This algorithm can perfectly realize linear frequency modulation. Additionally, the frequency error functions obtained in iterative process can be used for linearity test. so a linearity correction and test system for FMCW signals is developed. The experimental results with a 3mm VCO prove that the maximum instantaneous linearity and mean square root linearity after correction are high to 0. 016% and 0. 007% respectively. |
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| Keywords: | Linearity correction FMCW signals CW radars Iterative algorithm. |
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