| 对称三角线性调频连续波雷达信号多周期模糊函数分析 |
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| 引用本文： | 吴礼,彭树生,肖泽龙,是湘全.对称三角线性调频连续波雷达信号多周期模糊函数分析[J].南京理工大学学报(自然科学版),2009,33(1). |
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| 作者姓名： | 吴礼 彭树生 肖泽龙 是湘全 |
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| 作者单位： | 南京理工大学,电子工程与光电技术学院,江苏,南京,210094 |
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| 摘 要： | 针对大时带宽积对称三角形线性调频连续波信号模糊函数须考虑多普勒效应对复包络函数的影响,该文利用信号复包络求解法,导出了大时带宽积对称三角线性调频连续波信号的单周期与多周期模糊函数,研究了它们的对称性、模糊度图及沿主轴切割性质等特性.通过分析模糊函数表达式,得到了单、多周期信号的理论多普勒分辨率与时延分辨率.结果表明:单周期和多周期信号的时延分辨率相同,而N周期信号的多普勒分辨率提高到单周期信号的1/N.
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| 关 键 词： | 线性调频 连续波信号 对称三角多周期模糊函数 多普勒分辨率 时延分辨率 |
Multi-period Ambiguity Function Analysis of Symmetrical Triangle Linear Frequency Modulation Continuous Wave Signals |
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| WU Li,PENG Shu-sheng,XIAO Ze-long,SHI Xiang-quan.Multi-period Ambiguity Function Analysis of Symmetrical Triangle Linear Frequency Modulation Continuous Wave Signals[J].Journal of Nanjing University of Science and Technology(Nature Science),2009,33(1). |
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| Authors: | WU Li PENG Shu-sheng XIAO Ze-long SHI Xiang-quan |
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| Affiliation: | School of Electronic Engineering and Optoelectronic Technology;NUST;Nanjing 210094;China |
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| Abstract: | For the problem to take into account of Doppler effect on the complex envelope in large time-bandwidth product symmetrical triangle linear frequency modulation continuous wave(LFMCW) signal ambiguity function,this paper adopts a complex envelope solution to deduce single-period and multi-period ambiguity functions of the large time-bandwidth product symmetrical triangle LFMCW signals.Their symmetry,ambiguity map and ambiguity function cut along their principal axis are studied.By analyzing ambiguity functio... |
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| Keywords: | linear frequency modulation continuous wave signals symmetrical triangle multi-period ambiguity functions Doppler resolutions delay resolutions |
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