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深入研究了线性调频变换的离散形式，导出了线性调频变换与反变换的关系式。根据理论分析和计算机模拟得出了离散化过程中时域抽样间隔（△ｔ）、取样点数（Ｎ）及调频卒抽样间隔（△ａ）之间的定量关系。
In-depth study of the discrete form of the chirp transform, derived the relationship between the chirp and inverse transform. According to the theoretical analysis and computer simulation, the quantitative relationship between time-domain sampling interval (△ t), sampling points (N) and frequency sampling interval (△ a) was obtained.