[1] [1] Hapke B. They of Reflectance Emittance Spectroscopy[M]. 2nd ed. Cambridge: Cambridge University Press, 2012.

[2] Fischer E M, Pieters C M. Remote determination of exposure degree and iron concentration of lunar soils using VIS-NIR spectroscopic methods[J]. Icarus, 111, 475-488(1994).

[3] Lucey P G, Taylor G J, Malaret E. Abundance and distribution of iron on the Moon[J]. Science, 268, 1150-1153(1995).

[4] Hapke B. Space weathering from Mercury to the asteroid belt[J]. J Geophys Res, 106, 10039-10073(2001).

[5] [5] Mris R V. igins size distribution of metallic iron particles in the lunar regolith[C]Lunar Pla Sci Conf, 1980: 16971712.

[6] Liu Dawei, Li Lin, Sun Ying. An improved radiative transfer model for estimating mineral abundance of immature and mature lunar soils[J]. Icarus, 253, 40-50(2015).

[7] Wang Zhenchao, Wu Yunzhao, Blewett D T. Submicroscopic metallic iron inlunar soils estimated from the in situ spectra of the Chang’E-3 mission[J]. Geophys Res Lett, 44, 3492(2017).

[8] Fu Xiaohui, Zou Yongliao, Zheng Yongchun. Space weathering processes and effects on the Moon[J]. Chin J Space Sci, 31, 705-715(2011).

[9] Zhao Zhe, Zhou Ping, Yan Bokun. Spectra simulation of lunar regolith based on the Hapke radiative transfer model. Front[J]. Earth Sci, 23, 266-278(2016).

[10] Li Chunlai, Wang Zhendong, Xu Rui. The scientific information model of Chang’e-4 visible and near-IR imaging spectrometer (VNIS) and in-flight verification[J]. Sensors, 19, 2806(2019).

[11] Wu Yunzhao, Hapke B. Spectroscopic observations of the Moon at the lunar surface[J]. Earth Planet Sci Lett, 484, 145-153(2018).

[12] Wu Yunzhao, Wang Zhenchao, Cai Wei. The absolute reflectance and new calibration site of the moon[J]. The Astronomical Journal, 155, 213(2018).

[13] Hapke B. Bidirectional reflectance spectroscopy: 1. Theory[J]. J Geophys Res, 86, 3039-3054(1981).

[14] [14] Bowell E, Hapke B, Domingue D, et al. Applications of Photometric Models to Asteroids[M]. 2nd ed. Arizona: University of Arizona Press, 1989.

[15] Mustard J, Pieters C. Photometric phase functions of common geologic minerals and applications to quantitative analysis of mineral mixture reflectance spectra[J]. Geophys Res, 94, 619-634(1989).

[16] [16] Mckay D S, Cooper B L, Riofrio L M. New measurements of the particle size distribution of Apollo 11 lunar soil[C]Lunar Pla Sci Conf, 2009.

[17] [17] Paquin R A. Hbook of Optics[M]. New Yk: McGrawHill, Inc,1995.

[18] [18] Houston W N, Mitchell J K, Carrier III W D. Lunar soil density posity[C] Proc Lunar Pla Sci Conf, 1974: 23612364.

[19] [19] Askel D R, Phule P P. The Science Engineering of Materials[M]. 4 th ed. USA: BrooksCole PublishingThompson Learning, 2003.

[20] Wu Yunzhao, Xue Bin, Zhao Baochang. Global estimates of lunar iron and titanium contents from the Chang’ E-1 IIM data[J]. J Geophys Res, 117, E02001(2012).