线性调频信号(Linear Frequency Modulated,LFM)作为一种典型的非平稳信号而且具有大的时间-频带积,被广泛用于各种信息系统。从电子战和电子干扰的角度看,为解决作用距离和距离分辨率的矛盾以及提高信号的隐蔽性，通常采用LFM信号，对于线性调频信号的检测和参数估计,成为电子战研究的重点matlab计算分数阶傅立叶变换运用分数阶傅里叶变换frft对线性调频信号lfm参数进行估计，结果很准确例程完整，有运行结果。
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