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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