研究了利用混沌相变进行弱信号检测的理论及仿真试验( 对基于) 振子初值敏感性检测弱信号的方法分

析后指出，过渡过程会影响检测性能，提出一种改进的弱信号检测方法( 对仿真输入噪声生成和仿真步长选择进行

研究后建立了仿真模型，在典型噪声背景下检测弱正弦信号( 实验结果表明：所提出的方法有较好检测性能；混沌

临界态的 系统对噪声敏感导致相变方法难以精确确定最小检测-Studied the use of chaotic phase transitions for weak signal detection theory and simulation test (based on) the sensitivity of oscillator initial value method of weak signal detection analysis pointed out that the transition process will affect the detection performance, an improved method of weak signal detection ( on the simulation input noise generation and simulation step size selection study established a simulation model, in a typical background noise detection of weak sinusoidal signals (Experimental results show that: the proposed method has better detection performance　chaotic critical state of the system to noise-sensitive lead to phase-change method difficult to accurately determine the minimum detectable