基于双振子差分系统的复频检测新方法

摘要

This paper describes the intermittent chaos detection principle, combined with differential form the double Duffing oscillator difference system to the weak signal frequency detection, especially proposes the method for complex frequency signal detection with a new meaning, gives the detailed steps of the method and flow chart, the complex frequency signals are detected and the single-frequency signal is also simulated. The results show that, compared with traditional Duffing oscillator array method, this method not only reduces the array number, and improves frequency detection band-width without affecting the detection accuracy, reduces the calculation amount.%描述了间歇混沌检测原理，结合差分原理构成双Duffing振子差分系统对弱信号频率进行检测，提出了该方法对复频信号的检测具有全新的意义，给出了方法的具体步骤和流程图，在对复频信号进行检测的同时对单频信号也进行了仿真。结果显示，与传统的Duffing振子阵列方法进行比较，该方法不仅减少了阵列数，且在不影响检测精度的前提下提高了频率检测带宽，大大减少了计算量。