LFM信号误差对SAR成像的影响分析
Effect of LFM error on the image of SAR
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摘要: 该文讨论了线性调频信号频率线性度的定义，分析了线性调频信号数字产生过程中，频率线性度、相位误差、幅频特性不平坦产生的原因以及对SAR成像的影响。给出了计算机仿真结果。Abstract: The definition of frequency linearity of LFM(Lincar Frequency Modulation) is discussed in this paper. The causes for frequency linearity, phase error and spectrum unevenness during the process of generation with digital method are analyzed. The effects of these errors on SAR image are also described. Finally, the simulation results are given in this paper.
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汪学刚等,线性调频信号的线性度校正,电子学报,1996,24(2),120-122.[2]汪学刚等,调频线性度与零差拍线性调频连续波雷达的距离分辨力,系统工程与电子技术,1997,19(10),19-23.[3]宋景唯,线性度对线性调频雷达距离分辨力的影响,电子科技大学学报,1992,21(2),121-126.[4]孟宪德等,LFM信号调频非线性测试技术,哈尔滨工业大学学报,1999,31(4),66-68.[5]张澄波,综合孔径雷达-原理、系统分析与应用,北京,科学出版社,1989,11,第四章.[6]张群英等,A/D量化误差对脉冲压缩结果的影响,现代雷达,2000,22(2),63-68.[7]张群英等,宽带线性调频信号源设计报告,电子所内部报告,2001. -
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