[1] Martin-Neira M. A Passive Reflectometry and Interferometry System(PARIS):Application to Ocean Altimetry[J]. ESA Journal, 1993, 17:331-355 https://www.researchgate.net/publication/279897829_A_Passive_Reflectometry_and_Interferometry_System_PARIS_Application_to_ocean_altimetry
[2] 刘经南, 邵连军, 张训械. GNSS-R研究进展及其关键技术[J].武汉大学学报·信息科学版, 2007, 32(11):955-960 http://ch.whu.edu.cn/CN/abstract/abstract2030.shtml

Liu Jingnan, Shao Lianjun, Zhang Xunxie. Advances in GNSS-R Studies and Key Technologies[J]. Geomatics and Information Science of Wuhan University. 2007, 32(11):955-960 http://ch.whu.edu.cn/CN/abstract/abstract2030.shtml
[3] Bilich A, Larson K M, Axelrad P. Observations of Signal-to-noise Ratios (SNR) at Geodetic GPS Site CASA:Implications for Phase Multipath[J]. Proceedings of the Centre for European Geodynamics and Seismology, 2004, 23:77-83 http://xenon.colorado.edu/publications/bilich_casa.pdf
[4] Larson K M, Small E E, Gutmann E, et al. Using GPS Multipath to Measure Soil Moisture Fluctuations:Initial Results[J]. GPS Solutions, 2008, 12(3):173-177 doi:  10.1007/s10291-007-0076-6
[5] Larson K M, Small E E, Gutmann E D, et al. Use of GPS Receivers as a Soil Moisture Network for Water Cycle Studies[J]. Geophysical Research Letters, 2008, 35(24):1-5 http://citeseerx.ist.psu.edu/viewdoc/summary?doi=
[6] Larson K M, Gutmann E D, Zavorotny V U, et al. Can We Measure Snow Depth with GPS Receivers?[J]. Geophysical Research Letters, 2009, 36(17):1-5 http://citeseerx.ist.psu.edu/viewdoc/summary?doi=
[7] Small E E, Larson K M, Braun J J. Sensing Vegetation Growth with Reflected GPS Signals[J]. Geophysical Research Letters, 2010, 37(12):1-5 http://xenon.colorado.edu/portal/publications/small_etal_2010.pdf
[8] Gutmann E D, Larson K M, Williams M W, et al. Snow Measurement by GPS Interferometric Reflectometry:An Evaluation at Niwot Ridge, Colorado[J]. Hydrological Processes, 2012, 26(19):2951-2961 doi:  10.1002/hyp.v26.19
[9] Larson K M, Nievinski F G. GPS Snow Sensing:Results from the EarthScope Plate Boundary Observatory[J]. GPS Solutions, 2013, 17(1):41-52 doi:  10.1007/s10291-012-0259-7
[10] Ozeki M, Heki K. GPS Snow Depth Meter with Geometry-free Linear Combinations of Carrier Phases[J]. Journal of Geodesy, 2011, 86(3):209-219 doi:  10.1007/s00190-011-0511-x
[11] Lv C X, Zhang X H. Measuring Snow Depth with GPS Triple-frequency Carrier Phase Observations[C]. International Workshop on GNSS Remote Sensing for Future Missions and Sciences, Shanghai, 2011
[12] 敖敏思, 朱建军, 胡友健, 等.利用SNR观测值进行GPS土壤湿度监测[J].武汉大学学报·信息科学版, 2015, 40(1):117-121 http://ch.whu.edu.cn/CN/abstract/abstract3167.shtml

Ao Minsi, Zhu Jianjun, Hu Youjian, et al. Comparative Experiments on SoilMoisture Monitoring with GPS SNR Observations[J]. Geomatics and Information Science of Wuhan University. 2015, 40(1):117-121 http://ch.whu.edu.cn/CN/abstract/abstract3167.shtml
[13] Jin S G, Najibi N. Sensing Snow Height and Surface Temperature Variations in Greenland from GPS Reflected Signals[J]. Advances in Space Research, 2014, 53(11):1623-1633 doi:  10.1016/j.asr.2014.03.005
[14] Wei W, Larson K M, Small E E, et al. Using Geodetic GPS Receivers to Measure Vegetation Water Content[J]. GPS Solutions, 2015, 19(2):237-248 doi:  10.1007/s10291-014-0383-7
[15] 徐斌, 杨涛, 谭保华, 等.基于Lomb-Scargle算法的周期信号探测的模拟研究[J].核电子学与探测技术, 2011, 31(6):702-705 http://d.wanfangdata.com.cn/Periodical/hdzxytcjs201106026

Xu Bin, Yang Tao, Tan Baohua, et al. The Simulate Study of Detection Based on Lomb-Scargle Algorithm[J]. Nuclear Electronics & Detection Technology, 2011, 31(6):702-705 http://d.wanfangdata.com.cn/Periodical/hdzxytcjs201106026