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这是一个利用Duffing振子检测微弱信号频率的Matlab程序。该程序可以检测并测量与周期策动力频率相差0.03以内的微弱信号频率。通过优化算法和信号处理技术,信噪比可以达到-68db,从而提高了信号的可靠性和准确性。