计算机测量与控制
計算機測量與控製
계산궤측량여공제
COMPUTER MEASUREMENT & CONTROL
2010年
2期
320-322
,共3页
Duffing方程%混沌振子%弱信号检测%图像识别%自动检测
Duffing方程%混沌振子%弱信號檢測%圖像識彆%自動檢測
Duffing방정%혼돈진자%약신호검측%도상식별%자동검측
Duffing equation%Chaotic oscillator%Weak signal detection%Image recognition%Automation detection
分析了基于Melnikov法和相轨迹观察法的弱周期信号检测方法,针对该方法存在检测精度低等不足,通过对混沌相平面的分析,结合图像处理相关知识,提出了基于图像识别法的弱周期信号检测方法;首先给出相关理论基础,然后阐述了所提方法的原理和设计方案,并给出了相应判别程序流程图;该方法具有算法简单、计算量小且可以实现自动识别的优点;仿真结果验证了理论分析的正确性和所提方案的有效性,为弱信号的检测提供了一条新的途径.
分析瞭基于Melnikov法和相軌跡觀察法的弱週期信號檢測方法,針對該方法存在檢測精度低等不足,通過對混沌相平麵的分析,結閤圖像處理相關知識,提齣瞭基于圖像識彆法的弱週期信號檢測方法;首先給齣相關理論基礎,然後闡述瞭所提方法的原理和設計方案,併給齣瞭相應判彆程序流程圖;該方法具有算法簡單、計算量小且可以實現自動識彆的優點;倣真結果驗證瞭理論分析的正確性和所提方案的有效性,為弱信號的檢測提供瞭一條新的途徑.
분석료기우Melnikov법화상궤적관찰법적약주기신호검측방법,침대해방법존재검측정도저등불족,통과대혼돈상평면적분석,결합도상처리상관지식,제출료기우도상식별법적약주기신호검측방법;수선급출상관이론기출,연후천술료소제방법적원리화설계방안,병급출료상응판별정서류정도;해방법구유산법간단、계산량소차가이실현자동식별적우점;방진결과험증료이론분석적정학성화소제방안적유효성,위약신호적검측제공료일조신적도경.
The weak cycle signal detection based on Melnikov method and the trajectory observation method is analyzed.In view of low precision inadequate existing in observation method,through the phase plane analysis,and image processing knowledge,a new weak cycle of signal detection method based on image recognition is presented.At first,the basis of relevant theories is given OUt,and then,the princi-pies and methods of design expounded,and the corresponding discriminate program flowchart is given out.The method has advantages of simple algorithm,small amount of calculation and automatic identification;the simulation results show the correctness of the theoretical a-nalysis and the effectiveness of the programme.The result has provided one highly effective new way for the weak signal detection.
