本文選題：嫦娥二號(hào) + 微波探測儀　； 參考：《地球科學(xué)(中國地質(zhì)大學(xué)學(xué)報(bào))》2013年04期

【摘要】：介紹了嫦娥二號(hào)(CE-2)與嫦娥一號(hào)(CE-1)搭載的微波探測儀(microwave radiometer,MRM)的不同之處,給出其亮度溫度的算法和地面定標(biāo)系數(shù),并得到CE-2MRM獲得的全月亮度溫度分布圖.分析了亮溫的數(shù)據(jù)規(guī)律,并以此為基礎(chǔ)歸一化后比較了二者之間的數(shù)據(jù)差異.最后比較了不同取值的非線性系數(shù)對(duì)CE-2MRM亮溫定標(biāo)結(jié)果產(chǎn)生的影響.結(jié)果表明:目前CE-2MRM數(shù)據(jù)在3GHz、19.35GHz和37GHz頻率符合地基觀測結(jié)果的范圍,同CE-1MRM結(jié)果相比在月球低緯度地區(qū)(≤50°)差異在11K以內(nèi),差異的主要原因是CE-2定標(biāo)方法的改進(jìn)以及定標(biāo)方程中非線性項(xiàng)的引入,而7.8GHz通道的數(shù)據(jù)異常表明該通道存在系統(tǒng)誤差.
[Abstract]:The differences between Chang'e 2 (CE-2) and microwave radiometers (MRM) carried by Chang'e 1 (CE-1) are introduced. The algorithm of luminance temperature and the calibration coefficient of the ground are given, and the monthly luminance temperature distribution chart obtained by CE-2MRM is obtained. The data law of brightness temperature is analyzed, and the difference between them is compared after normalization. Finally, the influence of nonlinear coefficients of different values on the bright temperature calibration results of CE-2MRM is compared. The results show that the current CE-2MRM data at the frequencies of 3GHz ~ 19.35GHz and 37GHz correspond to the range of ground-based observations, and the difference between CE-2MRM data and CE-1MRM data is less than 11K in the lower latitude of the moon (鈮，

本文編號(hào)：2091766