Wigner distribution function with generalized parameters a new double-domain joint representation of signals 一種新的信號(hào)雙域表示方法
First, we take the analysis of phase-plane on the invariant plane for the perturbed and unperturbed systems . next, we applied the singular perturbation theory to establish the persistence of invariant manifolds, as well as the " fiber represent at iones " of these manifolds . finally, by using the global integrable theory of the unperturbed system and melnikov measurement we obtai n the existence of homoclinic orbits for the cqs equation under the generalized parameters conditions 首先,我們?cè)诔V灯矫嫔蠈?duì)擾動(dòng)和未擾動(dòng)系統(tǒng)進(jìn)行相平面分析;然后利用奇異擾動(dòng)理論討論不變流形的保持性,并給出不變流形的纖維表示;借助于未擾動(dòng)系統(tǒng)的可積結(jié)構(gòu)和melnikov測(cè)度,我們得到了三次?五次非線性schr(