On the basis of contrast maximization autofocusing algorithm ( cma ) , a method based on minimum entropy criteria ( mec ) for sar imagery autofocusing is proposed 在對(duì)比度最大化自聚焦算法的基礎(chǔ)上,提出了基于圖像熵最小準(zhǔn)則的自聚焦算法。
In the study of entropy expression of porous media convection - diffusion process , the reason why minimum entropy production principle is uncomformable is analyzed 在多孔介質(zhì)對(duì)流擴(kuò)散問題的熵產(chǎn)規(guī)律的研究中,分析了最小熵產(chǎn)原理在這一問題中的不適應(yīng)性的原因。
And others are found , and the expression of minimum rate of energy dissipation of flow is re - derived based on the theory of minimum entropy production . ( 2 ) it will be pointed out that the entropy is different from the entropy production in a river system ( 2 )指出河流系統(tǒng)中的熵與熵產(chǎn)生是兩個(gè)不同的概念,沖積河流在調(diào)整過程中,力求使水流的熵產(chǎn)生或能耗率趨于最小值,而不是使熵趨于最大值。
Firstly , the principle of phase gradient autofocus and rank one phase estimate and its advanced are detailed . secondly , it proposes an algorithm of fast maximum contrast phase compensation after discussing its similar algorithm fast minimum entropy phase compensation 討論了經(jīng)典的相位梯度自聚焦算法、秩一相位誤差算法及其改進(jìn)形式;在討論快速最小熵相位補(bǔ)償算法的基礎(chǔ)上,提出了對(duì)比度最優(yōu)相位調(diào)整算法,實(shí)測(cè)數(shù)據(jù)處理表明了該算法的有效性。