微弱周期脉冲信号的取样积分-混沌系统联合检测方法
The United Detecting Method of Sampling Integral and Chaotic System for the Weak Periodic Pulse Signals
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摘要: 为提高混沌系统检测微弱周期脉冲信号的能力，提出把取样积分与混沌系统相结合的检测方案。仿真结果表明在相同系统实验背景下，相结合的检测方案优于不加取样积分的检测方法；周期脉冲信号占空比变小，使检测到的最小脉冲幅度变大；输入噪声强度的降低可使检测系统临界相态简化。Abstract: In order to improve the ability of chaotic system detecting weak periodic pulse signals, this paper proposes the detecting scheme uniting sampling integral with chaotic sys-tem. The simulation results indicate that the united detecting scheme precedes the detecting method without sampling integral under the same experimental background. Because occu-pied space ratio of the periodic pulse signals diminishes, the detected minimum amplitude increases. The intension decrease of input noise can simplify the critical phase state of detecting system.
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