The method is limited when the conventional DFT-based techniques are used in sinusoid detecting in the presence of strong signal and weak signal in noise.

• 摘要就被测信号的强弱差异对使用常规DFT谱峰搜索的信号检测影响，基于非监督的递归算法，通过选择适当的门限参数，提出了一种适合于强弱信号并存的多信号检测方法。