本文選題：梯度傾斜 + 相關(guān)��； 參考：《物理學(xué)報(bào)》2017年10期

【摘要】：根據(jù)Rytov近似以及泰勒湍流凍結(jié)假設(shè),推導(dǎo)出以不同距離的前向散射光為信標(biāo)的水平路徑上梯度傾斜角的相關(guān)表達(dá)式.基于該表達(dá)式,在理論上提出了計(jì)算湍流強(qiáng)度與橫向風(fēng)速的新方法,并通過數(shù)值仿真對(duì)該方法進(jìn)行了初步驗(yàn)證.結(jié)果表明,在5%高斯誤差情況下,大氣折射結(jié)構(gòu)常數(shù)和風(fēng)速的計(jì)算結(jié)果與理論真值在整體變化上具有較好的一致性,線性相關(guān)系數(shù)分別能達(dá)到0.8與0.9.該方法能夠得到不同湍流與風(fēng)速條件下的湍流強(qiáng)度廓線以及風(fēng)速廓線,為反演大氣湍流強(qiáng)度以及風(fēng)速提供了一種新思路.
[Abstract]:According to the Rytov approximation and the Taylor turbulence freeze hypothesis, the correlation expression of gradient inclination angle on the horizontal path of the beacon with different distances is derived. Based on this expression, a new method for calculating the turbulent intensity and the transverse wind velocity is proposed in theory, and the results are preliminarily verified by the numerical simulation. The results show that in the case of 5% Gauss error, the calculation results of the atmospheric refraction structure constant and wind velocity are in good agreement with the theoretical true value, and the linear correlation coefficient can reach 0.8 and 0.9., respectively. The method can obtain the turbulence intensity profile and the wind velocity profile under different turbulence and wind speed conditions, in order to retrieve the strong turbulence intensity. A new way of thinking is provided for the degree and wind speed.
【作者單位】： 中國科學(xué)技術(shù)大學(xué)環(huán)境科學(xué)與光電子技術(shù)學(xué)院;中國科學(xué)院安徽光學(xué)精密機(jī)械研究所中國科學(xué)院大氣成分與光學(xué)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金(批準(zhǔn)號(hào):41405014)資助的課題~~
【分類號(hào)】：O357.5

【相似文獻(xiàn)】

相關(guān)期刊論文 前2條

1 黃寧;鄭曉靜;;風(fēng)沙躍移運(yùn)動(dòng)發(fā)展過程及靜電力影響的數(shù)值模擬[J];力學(xué)學(xué)報(bào);2006年02期

2 ;[J];;年期

，

本文編號(hào)：1981184